E6750 Retail - Some results Air Cooled

[MacClipper]

Borrowed the title from Pedro's E6850 thread, makes for much neater title listing formatting, don't you think... hee hee.

E6750 Retail L721A525
Commando 1302, stock droopy original mobo
TR SI- 120, TT fan
2GB Crucial 10th Annivs + 2GB Tracer PC5300

Just got it today and I am already impressed. Amazing how low temps are reported at idle. FYI, ambient local temps here hover around mid-20Cs so these temps kind of incredibly low but my finger does confirm the HS is totally cool though. Started with my high rpm fans, threw them out after a few minutes for peace and quiet since there's totally no need for them, nice.
http://i173.photobucket.com/albums/w78/MacClipper/E6750/Idletemp.jpg

3.6GHz at just 1.40v BIOS!
http://i173.photobucket.com/albums/w78/MacClipper/E6750/450FSB_1400v_3600.jpg

Probably needs loads more vcore to from here cos I did try pushing up to 1.5v BIOS at 3.8GHz (475FSB) but it's still no good after just a few minutes of Orthos.

:)

[kiki]

nice results.

got 1 of these ordered so be interested to see how far you can push yours.:up:

[msgclb]

My bank account is empty! My credit cards are maxed out! Guess what I ordered? Yes, I've ordered an E6750 since I couldn't squeeze another $100 for an E6850. So keep pushing it so I've got a target to shoot for.:)

[Endre]

Nice results, can't wait to get mine! If I can run it at 3,5+ 24/7, with the Ultra120 Extreme, I'll be satisfied. :)

[MacClipper]

Anyone knows why the G0 stepping makes so much of a difference in temps? Just yesterday I was stress testing my old E6300@3.3GHz 1.45v same rig, it idled at 50C and was really cooking at 70C doing Orthos.

Not complaining cos I am really loving it esp. the silence.

[MacClipper]

Just realised that I was trying higher with 4 sticks of RAM, think got to cut down to 2 sticks later so to eliminate the mobo NB quality factor. lol

[Start]

Nice, now all we need is an E6550 Retail - Some results Air Cooled thread ;) Can we get some temps of CoreTemp @ those 1.4v?

[msgclb]

Anyone knows why the G0 stepping makes so much of a difference in temps?


I've been wondering the same thing. I searched the Intel web pages but couldn't find anything on these new G0 chips. In reading a couple of reviews of the E6750 I noticed that they don't mention anything about the cpu temperature.

The one thing I did notice was the voltage...

CPU-Z E6750
Voltage: 1.040v
Core Speed: 2666.7 MHz
Multi: x8
Bus Speed: 333.3 MHz

CPU-Z E6750
Voltage: 1.200v
Core Speed: 3920.2 MHz
Multi: x8
Bus Speed: 490.0 MHz
(not quite stable)

CPU-Z E6750
Voltage: 1.200v
Core Speed: 3840.1 MHz
Multi: x8
Bus Speed: 480.0 MHz

Other reviews showed the CPU-Z voltage ...
1.328v with 1.3875v in BIOS @ 333.3MHz FSB
1.238v @ 333.3MHz FSB
1.408v @ 445.0MHz FSB

MacClipper, what is the stock voltage shown on the package, etc.?

[adamsleath]

these chips are so coool....literally
my idle coretemp @ 20c ambient is 12c (dodgy coretemp reading) @3.6GHz :hehe: @1.36v 6850.
dual orthos .05 droop 33c max under load @ 20 minutes dual orthos.
@3.4GHz 1.3v is dual orthos stable.
@3.33GHz this one is fine at 1.24v...havent tried lower volts yet.

[Gepidae]

Nice, now all we need is an E6550 Retail - Some results Air Cooled thread ;) Can we get some temps of CoreTemp @ those 1.4v?

Im waiting for mine to come in, stupid slow shipment from etech4sale :down:

[adamsleath]

hopefully there are some golden 6550's out there...but with 7x multi youll need a good mobo.....530x7???

[Gepidae]

Yup I plan for the IP35 so I hope to push it to around 3.6

[rob[GL]]

I got mine last week too...

Been playing for a few days now, having some board trouble yet.

My computer room is ambient ~25celcius and my E6750 @ stock settings runs 15celcius idle, with the stock boxed cooler!

I ran orthos for 8 hours on stock boxed cooler and cpu maxed out @ 47celcius.



I have a ZALMAN CNPS-9500-LED now, and while running orthos I max out at about 32celcius now.

Gotta get this board figured out and overclock the snot out of it!

[3oh6]

;2310518']My computer room is ambient ~25celcius and my E6750 @ stock settings runs 15celcius idle, with the stock boxed cooler!
hey guys, don't get too excited about temps just yet. CoreTemp is clearly not calculating temps correctly on the G0 rev chips. idling 10C below ambient isn't just impossible, its 10C past impossible. i think it is almost safe to say that 15~20C should be added to CoreTemp readings for actual temps...just an estimate based on the results users have posted in this thread.

[MacClipper]

It's definitely cooler than the older steppings, I dunno exactly how much though the digital index (aka my index finger) confirms it is way cool. And you should see the even lower incredible CPU temps in the Asus 1302 BIOS... lol

SuperPi 1M, got to read up on tweaking the subtimings soon. :D
http://valid.x86-secret.com/show_oc?id=217602
http://i173.photobucket.com/albums/w78/MacClipper/E6750/SuperPi_14265.jpg

[adamsleath]

hey guys, don't get too excited about temps just yet. CoreTemp is clearly not calculating temps correctly on the G0 rev chips. idling 10C below ambient isn't just impossible, its 10C past impossible. i think it is almost safe to say that 15~20C should be added to CoreTemp readings for actual temps...just an estimate based on the results users have posted in this thread.

my BIOS hardware monitor temp shows cpu at 26c
ctemp shows 15c...so maybe 10-15c difference between ctemp and actual...

[MacClipper]

Tech Reports on power consumption of their ES E6750 test rig for what it is worth, doesn't give any clue to the incredible low temps we are seeing around here in the retail chips. Don't think they mentioned any temps too.

http://www.techreport.com/reviews/2007q2/core2duo-e6750/index.x?pg=13

[adamsleath]

anyway i can tell by touching the heatsink base that it's cool ;)
we wont know until someone puts a thermistor on it.

[GripS]

hey guys, don't get too excited about temps just yet. CoreTemp is clearly not calculating temps correctly on the G0 rev chips. idling 10C below ambient isn't just impossible, its 10C past impossible. i think it is almost safe to say that 15~20C should be added to CoreTemp readings for actual temps...just an estimate based on the results users have posted in this thread.

I was going to say the same thing. The chip CAN NOT run cooler then ambient temps if your running it on AIR. It' just not possible. However even with +10C they are looking good. Hopefully with the new chips we all get flat IHS's!

[XtremeTiramisu]

I don't mean to brag or anything but I'm seriously going to buy either E6850 or Q6600 G0 on/after July 22nd. However I'm leaning a bit more towards the E6850 since it'll run cooler than Q6600 G0 becouse I'm on air (check my sig).
My E6700 is my 3rd C2D this year and its VID is 1.2500v and at stock voltage it could get Orthos stable up to around 3.33ghz!
At 3.6Ghz like you, I was using roughly the same voltage, 1.38v or less
at 3.73Ghz, I can get it stable with only ~1.42v under load.
Thanks to P5K-Dlx's "voltage damper" so I only have very little vdroop.

I'm expecting the E6850/E6750 to do much better than my current semi-golden E6700, I hope..


http://i41.photobucket.com/albums/e288/iamtiramisu/466x85-5-4-7-3-30-3-3-6.jpg

[GripS]

NICE!!

I'm curious about your screenshot tho.

It shows 4660mhz in your orthos screen. But in your CPU-Z screen it shows 3728...... What gives?

[XtremeTiramisu]

NICE!!

I'm curious about your screenshot tho.

It shows 4660mhz in your orthos screen. But in your CPU-Z screen it shows 3728...... What gives?

This is a very common question and I'll elaborate again :D
Keep in mind that my E6700 has a stock multiplier of x10
Orthos is only capable of recognizing the stock x10 multiplier times your current FSB so in this case x10 multi x 466 = 4660 which is obvious no way in hell possible on air even in 2020 lol...or maybe I'm wrong..;)

[GripS]

Makes sense.:)

[rob[GL]]

hey guys, don't get too excited about temps just yet. CoreTemp is clearly not calculating temps correctly on the G0 rev chips. idling 10C below ambient isn't just impossible, its 10C past impossible. i think it is almost safe to say that 15~20C should be added to CoreTemp readings for actual temps...just an estimate based on the results users have posted in this thread.

Um, sure it is... At stock settings the cpu drops to 6x multiplier (6x333=2000) instead of 8x333 @ 2666MHz, and not only that - the Vcore drops from 1.35vcore to a bout 1.1v

On top of that, I have a laser temperature gun, I'm not using CoreTemp. I'm using Intel's Thermal Analysis Tool to report temperatures. At first I did not believe reporting 15celcius either... But first I touched the heatsink... It was COLD! Then I used the laser temperature gun to test the temperature of the heatsink, it was also below ambient.

If your bedroom is 25celcius, and you pickup say a metal screwdriver, it will be colder than ambient... Where maybe a spindle of cd's or a stack of paper will be the same warm as the rest of the room.

ANYWAYS... I have some early results with my new system, just started out very easy... Went to bios, disable C1E @ Speedstep (EIST) and then changed my VDIMM from stock 1.8v to 2.2v which is what my new Patriot memories claim to need. I left Vcore @ stock 1.35v (reports 1.32-1.33 in windows) and raised to FSB up to 400MHz.

Seems easily stable at this speed, and temperatures are still amazing me after HOURS of orthos, not even breaking a sweat.

http://img.photobucket.com/albums/v336/robewm21/Testing001.jpg

[XtremeTiramisu]

;2311047']Um, sure it is... At stock settings the cpu drops to 6x multiplier (6x333=2000) instead of 8x333 @ 2666MHz, and not only that - the Vcore drops from 1.35vcore to a bout 1.1v

On top of that, I have a laser temperature gun, I'm not using CoreTemp. I'm using Intel's Thermal Analysis Tool to report temperatures. At first I did not believe reporting 15celcius either... But first I touched the heatsink... It was COLD! Then I used the laser temperature gun to test the temperature of the heatsink, it was also below ambient.

If your bedroom is 25celcius, and you pickup say a metal screwdriver, it will be colder than ambient... Where maybe a spindle of cd's or a stack of paper will be the same warm as the rest of the room.

ANYWAYS... I have some early results with my new system, just started out very easy... Went to bios, disable C1E @ Speedstep (EIST) and then changed my VDIMM from stock 1.8v to 2.2v which is what my new Patriot memories claim to need. I left Vcore @ stock 1.35v (reports 1.32-1.33 in windows) and raised to FSB up to 400MHz.

Seems easily stable at this speed, and temperatures are still amazing me after HOURS of orthos, not even breaking a sweat.



Looks good so far, and I presume that you're using the Zalman 9500LED as stated in your sig right?

I'd love to see what's the max OC under 1.5v and what will the temp be like.
Hopefully you'll not be capped by your Zalman 9500LED at higher OC.

Looking forward to see more results :)

[rob[GL]]

Was originally to use Scythe Ninja Rev. 2 but was toooooooooo damn big for my system... Even with the Zalman cooler instead of Scythe, I don't think CPU temps will be the problem... This board seems to have large Vdroop, and chipset gets hot, added extra cooling, will see how I high I can get!

[3oh6]

;2311047']If your bedroom is 25celcius, and you pickup say a metal screwdriver, it will be colder than ambient... Where maybe a spindle of cd's or a stack of paper will be the same warm as the rest of the room.
no, the screwdriver is not colder than anything else in the room...nothing can be colder than ambient temperature unless said object is in direct contact with a colder object. this is not my opinion, this is Physics. heat only flows from hotter objects to colder objects...do some research on this, heat cannot be removed from a colder object to a hotter one, the laws of physics on this planet do not allow it. heat only flows one way.

the screwdriver (or anything else metal for that matter) only feels 'colder' than paper or CDs because metal transfers heat better than paper or CDs and therefore draws heat from your skin faster than paper or CDs.

remember heat only flows from hotter objects to colder objects. us, being human and all, maintain a body temp of about 98F where room temperature tends to be closer to 70~75F thus making us warmer than ambient and all objects in the room. because we are warmer than ambient, heat flows from us to everything we touch in the room. this is why metal items feel colder when we touch them. when you touch an item, you lose heat to that object and there is less heat in your fingertip at contact making it feel 'colder' because we lose that heat to the object. metal transfers heat quite rapidly as opposed to paper which doesn't. therefore the metal object 'feels' colder only because it is removing heat from our fingertips faster.

yes, a screwdriver that was just brought into a room from another room (or fridge or the like) where the ambient air is colder will have a lower temperature initially but after a short period of time (depending of course on the temperature difference of the two rooms) the screwdriver will gain heat from the ambient air and become the same temperature. the screwdriver cannot hold the lower temperature from the other room without help. the screwdriver gains heat from the ambient temperature until they become equal and then doesn't get any hotter because it is the same temperature as ambient and heat only flows from hotter objects to colder objects.

this is why everything in the room is the same temperature as ambient...eventually.

if you put an ice cube in a room, it will gain heat from the ambient temperature causing it to melt into water. that water continues to gain heat from the ambient temperature until it becomes the same temperature as the ambient air. from that point on, the water will never lose heat nor gain heat and drop below ambient temperature or raise above ambient temperature because heat only flows from hotter objects to colder objects. you can't set an ice cube on a table in a room with an ambient temperature of 70F and not have the ice cube melt, can you?

just like the screwdriver can't be colder than ambient and neither can your processor, unless it is in direct contact with an object of a colder temperature that will remove heat from your processor. your heatsink can never be colder than ambient because the only thing it is in contact with is the ambient air and therefore cannot become a lower temperature than the ambient air because heat only flows from hotter objects to colder objects. does this make sense?

if your ambient temperature is 25C...the 'coldest' your processor can get is 25C regardless of what a thermal temp gun or TAT or CoreTemp say. Physics says 25C...period. with the heat a processor is generating even at idle at 1.00v with the frequency lower from a dropped multi, it takes a lot of heat removal ability to maintain it at ambient...just ask the water cooling guys in here.

as far as i know, there is no air cooler on the market that has the ability to remove and dissipate heat fast enough to keep a running C2D at ambient temps regardless of voltage or frequency. because of the relatively weak abilities of air coolers to remove heat when compared to a high-end water setup, chances are you are at least idling a few degrees above ambient temp if not 5C~10C regardless of what your processor and voltage drop down to.

i didn't mean for this post to be so bloody long or sound condescending in anyway, but it was clear that some readers in this thread didn't understand how temperature and heat transfer worked. i only posted this to help educate those readers better on this subject...please don't throw a fit and argue this further...just read and learn from it. ask questions if you have to and myself or others will be happy to answer but i think my explanation and examples should be more than enough.

[rob[GL]]

Maybe my room is colder than the digital readout on my A/C unit? Maybe the temperature probe is off by a couple degress at idle?

Irregardless, 35c @ full orthos load after 6 hours is impressive on air cooling...

[scwam]

no, the screwdriver is not colder than anything else in the room...nothing can be colder than ambient temperature unless said object is in direct contact with a colder object. this is not my opinion, this is Physics. heat only flows from hotter objects to colder objects...do some research on this, heat cannot be removed from a colder object to a hotter one, the laws of physics on this planet do not allow it. heat only flows one way.

the screwdriver (or anything else metal for that matter) only feels 'colder' than paper or CDs because metal transfers heat better than paper or CDs and therefore draws heat from your skin faster than paper or CDs.

remember heat only flows from hotter objects to colder objects. us, being human and all, maintain a body temp of about 98F where room temperature tends to be closer to 70~75F thus making us warmer than ambient and all objects in the room. because we are warmer than ambient, heat flows from us to everything we touch in the room. this is why metal items feel colder when we touch them. when you touch an item, you lose heat to that object and there is less heat in your fingertip at contact making it feel 'colder' because we lose that heat to the object. metal transfers heat quite rapidly as opposed to paper which doesn't. therefore the metal object 'feels' colder only because it is removing heat from our fingertips faster.

yes, a screwdriver that was just brought into a room from another room (or fridge or the like) where the ambient air is colder will have a lower temperature initially but after a short period of time (depending of course on the temperature difference of the two rooms) the screwdriver will gain heat from the ambient air and become the same temperature. the screwdriver cannot hold the lower temperature from the other room without help. the screwdriver gains heat from the ambient temperature until they become equal and then doesn't get any hotter because it is the same temperature as ambient and heat only flows from hotter objects to colder objects.

this is why everything in the room is the same temperature as ambient...eventually.

if you put an ice cube in a room, it will gain heat from the ambient temperature causing it to melt into water. that water continues to gain heat from the ambient temperature until it becomes the same temperature as the ambient air. from that point on, the water will never lose heat nor gain heat and drop below ambient temperature or raise above ambient temperature because heat only flows from hotter objects to colder objects. you can't set an ice cube on a table in a room with an ambient temperature of 70F and not have the ice cube melt, can you?

just like the screwdriver can't be colder than ambient and neither can your processor, unless it is in direct contact with an object of a colder temperature that will remove heat from your processor. your heatsink can never be colder than ambient because the only thing it is in contact with is the ambient air and therefore cannot become a lower temperature than the ambient air because heat only flows from hotter objects to colder objects. does this make sense?

if your ambient temperature is 25C...the 'coldest' your processor can get is 25C regardless of what a thermal temp gun or TAT or CoreTemp say. Physics says 25C...period. with the heat a processor is generating even at idle at 1.00v with the frequency lower from a dropped multi, it takes a lot of heat removal ability to maintain it at ambient...just ask the water cooling guys in here.

as far as i know, there is no air cooler on the market that has the ability to remove and dissipate heat fast enough to keep a running C2D at ambient temps regardless of voltage or frequency. because of the relatively weak abilities of air coolers to remove heat when compared to a high-end water setup, chances are you are at least idling a few degrees above ambient temp if not 5C~10C regardless of what your processor and voltage drop down to.

i didn't mean for this post to be so bloody long or sound condescending in anyway, but it was clear that some readers in this thread didn't understand how temperature and heat transfer worked. i only posted this to help educate those readers better on this subject...please don't throw a fit and argue this further...just read and learn from it. ask questions if you have to and myself or others will be happy to answer but i think my explanation and examples should be more than enough.

I want to know why a probe thermometer at ambient 28c dipped into methanol at ambient 28c, when removed immdediate drops down 10c. Could you answer this for me? Makes no sense because there is nothing in the room that is colder than 28c. BTW, the thermistor is extremely accurate (0.2c at most) and is encased in a stanless steel probe

[MacClipper]

heheh, seems too low temps can also drive people up the wall.

Back to thermodynamics. Methanol absorbs thermal energy from the thermometer as it evaporates into the 28C air, thus cooling the thermometer.

[LagunaX]

Umm....so what is the preliminary consensus for the maximum dual orthos blend stable air overclock for this chip? 3.7ghz? 3.8ghz?

[alpha0ne]

My e6750 was delivered this morning so I'll install in a few mins and get back with some news re temps and max OC @ default Vcore

SLA9V Malay
L719A823
Max 1.35Vcore
Pack Date 06/26/07

[alpha0ne]

Looks like I must have a really crap e6750

400FSB x 8 = 3.20GHz ORTHOS bombs out after ~ 5 minutes large FFT also small FFT using default Vcore of 1.350V, using Abit IP35 Pro thats the min you can select in bios with these new cores :down:

Upped Vcore to 1.36V and STILL bombs out but when set @ 1.370Vcore is torture stable after 15 minutes with uGuru reporting 1.33Vcore @ 39C

I also tried x6 multi x 480FSB and boots OK but 490FSB no boot so seems that there really is an FSB wall :down:


Much more to come :)

[MacClipper]

400FSB 1.325V BIOS, RAM 2.0V, all else at AUTO

http://i173.photobucket.com/albums/w78/MacClipper/E6750/400FSB_1325v_3200.jpg

[Start]

Looks like I must have a really crap e6750

400FSB x 8 = 3.20GHz ORTHOS bombs out after ~ 5 minutes large FFT also small FFT using default Vcore of 1.350V, using Abit IP35 Pro thats the min you can select in bios with these new cores :down:

Upped Vcore to 1.36V and STILL bombs out but when set @ 1.370Vcore is torture stable after 15 minutes with uGuru reporting 1.33Vcore @ 39C

I also tried x6 multi x 480FSB and boots OK but 490FSB no boot so seems that there really is an FSB wall :down:


Much more to come :)

That sucks :(

[Gautam]

I want to know why a probe thermometer at ambient 28c dipped into methanol at ambient 28c, when removed immdediate drops down 10c. Could you answer this for me? Makes no sense because there is nothing in the room that is colder than 28c. BTW, the thermistor is extremely accurate (0.2c at most) and is encased in a stanless steel probe

Because the methanol is evaporating off of the probe tip. Evaporation is an active form of heat removal (as opposed to passive, e.g. air cooling or water) and can give you below ambient temperatures. That's why you feel cold when you step out of the shower.

[Durzel]

my BIOS hardware monitor temp shows cpu at 26c
ctemp shows 15c...so maybe 10-15c difference between ctemp and actual...Is that with Speedstep or whatever enabled though?

I can't believe that a CPU runs only 4 degrees higher than ambient temperature at its regular clock speed, and as has already been remarked running lower than ambient defies the laws of physics.

[rob[GL]]

Just came home from work... Orthos has been running 26.5 hours now... Temperatures have leveled out even more...

http://img.photobucket.com/albums/v336/robewm21/Testing002.jpg

[MacClipper]

Tried OCCT again after not touching it for many years and it seems more punishing than Orthos - had to up Vcore back to 1.45V BIOS to pass.

http://i173.photobucket.com/albums/w78/MacClipper/E6750/450FSB_1450v_3600.jpghttp://i173.photobucket.com/albums/w78/MacClipper/E6750/2007-07-17-09h24-VCore.png

http://i173.photobucket.com/albums/w78/MacClipper/E6750/2007-07-17-09h24-CPU1.pnghttp://i173.photobucket.com/albums/w78/MacClipper/E6750/2007-07-17-09h24-CPU2.png

[rob[GL]]

So you set 1.45v in bios, and got 1.41v in Windows, maybe it's more cpu-related than board related?

[michaLcoughliN]

try 450 fsb
1.4vcore
and loosen timings to 5:5:5:15

[dinos22]

Looks like I must have a really crap e6750

400FSB x 8 = 3.20GHz ORTHOS bombs out after ~ 5 minutes large FFT also small FFT using default Vcore of 1.350V, using Abit IP35 Pro thats the min you can select in bios with these new cores :down:

Upped Vcore to 1.36V and STILL bombs out but when set @ 1.370Vcore is torture stable after 15 minutes with uGuru reporting 1.33Vcore @ 39C

I also tried x6 multi x 480FSB and boots OK but 490FSB no boot so seems that there really is an FSB wall :down:


Much more to come :)
it's not the CPU
it's the motherboard
i had the same thing happen to me until i used Load Failsafe values in bios and enabled other devices manually

i had errors at stock as well until i did that
i am suspecting some kind of incompatibility with my Dominators donno but after that the CPU was stable at normal settings

[alpha0ne]

Yes I think your partly right dinos :up:

Thats exactly what I did plus cleared CMOS and after the reboot I found the available Vcore settings had changed from what was available using my e6300 that was doing 3.250GHz default Vcore which was 1.325V set in bios (the lowest setting available)

I have not tested extensively enough to confirm but I think the bios is not accurate when changing Vcore with small increases showing absolutely no differences between 1.35V to ~ 1.4Vcore

Currently @ 3.50GHz with 1.50Vcore set in bios but showing between 1.46 to 1.48 in uGuru idle and as low as 1.42V under load :down:

Oh and for some reason the IP35 Pro uGuru app is not captured in the screenshot using irfanview ?????

[dinos22]

i didn't have problems capturing mine

i absolutely LOVED the fact you can change voltage real time

That's amazing :)


http://img515.imageshack.us/img515/3815/450mhzfsbprime1hourzs8.jpg

http://img489.imageshack.us/img489/8338/500mhzprime10mxc7.jpg

[scwam]

how far can you get the fsb on that ip35 board?

[rob[GL]]

I am still testing my board... Seems depending on which vcore in bios, droop can be minimal or huge... I'm priming now 433FSB @ 1.360v

Funny that 400FSB @ 1.300v was sooo stable, yet to reach 433 I needed an increase of 0.06v - and I don't even know if it's stable yet... will find out when I get home from work...

[alpha0ne]

Currently @ 3.60GHz with 1.55Vcore set in bios, a bit too much Vdroop for my liking, I stopped buying Anus because of Vdroop

http://img337.imageshack.us/img337/382/36ghzxr3.jpg (http://imageshack.us)

:down: :down: :down: :down: :down: :down: :down: :down:

[rob[GL]]

Vdroop seems pretty nasty on these P35 boards?

[LagunaX]

Seems like a good e6600 might be better then, 3.6ghz at lower vcore, as far as the retail e6750's. The ES seemed promising though.

[MacClipper]

E6750 at 500FSB x 7, just 2 sticks of RAM, the few extra bucks for the E6750 buy multiplier flexibility. btw, the Commando still allows EIST to drop to 6x despite the EIST option disappearing in the BIOS when Multiplier Control is activated.
http://i173.photobucket.com/albums/w78/MacClipper/E6750/500FSB_1450v_3500.jpghttp://i173.photobucket.com/albums/w78/MacClipper/E6750/2007-07-18-11h26-VCore.png

Got a fellow forummer apparently with the same E6750 batch running his at >4GHz on water and 1.6V Vcore on P35-DQ6 (imo, strictly a no droop mobo). Guess it's benchable for his but not 24/7 practical at such high Vcore.

[rob[GL]]

433FSB @ 1.360vcore seems stable thus far... 5 hours in orthos... Will let it run all night while I sleep... If it's still good when I awake, I'll start raising FSB some more.

[alpha0ne]

3.70GHz BSOD at these settings :down:

http://img440.imageshack.us/img440/9029/3648mhz159vcorepv0.jpg

Settled for 3.40GHz with 1.45Vcore set in bios with only 2.0Vdimm

http://img255.imageshack.us/img255/669/340ghz145vcorebf6.jpg

[MacClipper]

Got a fellow forummer apparently with the same E6750 batch running his at >4GHz on water and 1.6V Vcore on P35-DQ6 (imo, strictly a no droop mobo). Guess it's benchable for his but not 24/7 practical at such high Vcore.

Ah, some screenies just posted here, 4.1GHz with water -
http://forums.vr-zone.com/showpost.php?p=3974767&postcount=71

[rob[GL]]

Woke up this morning... 433 @ 1.360v stable... 15 hours of orthos, temps at 40c now under load... Will get home and bump FSB up to 466 for more testing...

-rob

[MikalCarbine]

Ah, some screenies just posted here, 4.1GHz with water -
http://forums.vr-zone.com/showpost.php?p=3974767&postcount=71

I think us IP35 users have to come up with a vdroop mod

[rob[GL]]

Same for us P35-DS3R guys...

They have one, but it doesn't actually work, so...

[eklipze]

alpha0ne ouch. that E6750 must have failed your hopes. sell it NOW!. and another one hahah. thats one of the worst new G0 steppings i've seen so far. some are even worse. @ 1.6vcore and still can't get over 4ghz. (e6750)

i guess its all about luck. with these things

[michaLcoughliN]

hmmf. still not impresive enough to purchase. my E6300 makes 3,3ghz with ease. the only other chip ide purchase would be E6850 as long as it hits 3.5+ preferably making the 3.8 ;) to 4ghz wonder clock.

Or if they seem to gone for shat ill be getting a quad for the sake of the xtra cores

[alpha0ne]

alpha0ne ouch. that E6750 must have failed your hopes. sell it NOW!. and another one hahah. thats one of the worst new G0 steppings i've seen so far. some are even worse. @ 1.6vcore and still can't get over 4ghz. (e6750)

i guess its all about luck. with these things

Its GONE :yepp: :up:

[rob[GL]]

Once I hit 466FSB mine starts taking a dump... Pumping 1.55v and higher, still can't make the computer stable for more than ~2 hours...

Think I might go crazy tonight, and pump 1.75vcore just to rule out the board being the limitation...

[DEVIL K-ce]

;2320075']Once I hit 466FSB mine starts taking a dump... Pumping 1.55v and higher, still can't make the computer stable for more than ~2 hours...

Think I might go crazy tonight, and pump 1.75vcore just to rule out the board being the limitation...

Ok stable for 2h Orthos ...

Try 06, 05, 01 3D ...

You are use 24/7 dual core ? Im say no :p: So 450/460FSB will be ok for 24/7 comp :)


Martin

[rob[GL]]

Problem is... Orthos does not show any error... Computer just shuts off.
That's not stable enough for me... Have to figure out what's causing instability... Maybe I just need to back off my O/C a bit, be happy with 3.6GHz...

[DEVIL K-ce]

Hmmm

PSU You got nice

Vcore :confused: More bump ; probably do nothing:(

Maybe temp reported is wrong : actual temp is higher than reporting and cpu shut down.


Martin

[PJD]

;2311047']Um, sure it is... At stock settings the cpu drops to 6x multiplier (6x333=2000) instead of 8x333 @ 2666MHz, and not only that - the Vcore drops from 1.35vcore to a bout 1.1v

On top of that, I have a laser temperature gun, I'm not using CoreTemp. I'm using Intel's Thermal Analysis Tool to report temperatures. At first I did not believe reporting 15celcius either... But first I touched the heatsink... It was COLD! Then I used the laser temperature gun to test the temperature of the heatsink, it was also below ambient.

If your bedroom is 25celcius, and you pickup say a metal screwdriver, it will be colder than ambient... Where maybe a spindle of cd's or a stack of paper will be the same warm as the rest of the room.

ANYWAYS... I have some early results with my new system, just started out very easy... Went to bios, disable C1E @ Speedstep (EIST) and then changed my VDIMM from stock 1.8v to 2.2v which is what my new Patriot memories claim to need. I left Vcore @ stock 1.35v (reports 1.32-1.33 in windows) and raised to FSB up to 400MHz.

Seems easily stable at this speed, and temperatures are still amazing me after HOURS of orthos, not even breaking a sweat.

http://img.photobucket.com/albums/v336/robewm21/Testing001.jpg


::cough:: I want what you are smoking!! Take your analogy. A screwdriver isn't connected to a power source capable of producing temps of 700F. No way a cpu can be colder than the ambient temps without phase cooling/TEC. I've done watercooling for 10 years and even water running through the circuit without the computer turned on is +4C higher than ambient. My water block is cold also, but I still see temps +8C over ambient.

Also, if by chance Intel has been salvaging that UFO at Area 51 and you are really having temps < ambient, you'd also have issues with condensation. Condensation = mobo death, fried components, bonfire in the closet, etc.:D

[PJD]

::cough:: I want what you are smoking!! Take your analogy. A screwdriver isn't connected to a power source capable of producing temps of 700F. No way a cpu can be colder than the ambient temps without phase cooling/TEC. I've done watercooling for 10 years and even water running through the circuit without the computer turned on is +4C higher than ambient. My water block is cold also, but I still see temps +8C over ambient.

Also, if by chance Intel has been salvaging that UFO at Area 51 and you are really having temps < ambient, you'd also have issues with condensation. Condensation = mobo death, fried components, bonfire in the closet, etc.:D

Sorry for posting something old too!! I didn't want to wait for all of those images to render:)

Anyway, it appears those cpus are cooler which means for some watercooling may not be needed.

[adamsleath]

re temperatures: the only temp reading that seems to be realistic for me is the BIOS hardware monitor.
ambient: 17C; e4300@ 1.43v
ALL idle temps:
coretemp 0.95/0.94: 18C
speedfan: 17C
TAT: 35C
BIOStemp: 27C
ASUS probe: 12C

e6850@ 1.5v temp readings in SIG.

the readings are all over the place.

The only readings that seem consistent are BIOStemps.

[rob[GL]]

Guess so... But if cpu was overheating... I would be able to feel that heat passed onto the heatsink... Yet heatsink remains cool to touch.


Anyways, I tried more Vcore, and did not work at all... I tried 1.8 in the bios (which I presume would have been more like 1.75 real...) and it got into windows and then it locked up... computer started rebooting over and over and over and over...


hehe

had to clear bios.

i tried 1.6v in bios... and it would lock up in windows.

i'm running 1.575v in bios now... prime95 (version 25.3) and it has been running without error for 3 hours. i'll keep testing at this voltage... see how far i can get

[rob[GL]]

Prime95 ran fine all night... Yet orthos would crash (and system just reboots) within 3 hours.

I dropped my multiplier from 8x back to 7x and now 466FSB is totally stable.

I guess my particular E6750 does not like 3700MHz on air... Strange that it runs orthos fine for 3 hours without error, then the PC just reboots.


This board must not be able to provide enough volts to sustain a clock speed that high.


I will be happy if I can get 3.6GHz stable.

[Spanki]

Rob, you really need to think hard about your temperatures. The temps being reported are not correct. At Idle or at load. The sooner you accept this fact, the sooner things will start making sense.

Do you realize just how much heat you're generating by running at 1.5+ vCore(1.8?? are you nuts?) ? The problem is not that:


This board must not be able to provide enough volts to sustain a clock speed that high.

...the problem is that you're generating too much heat, so your system shuts down and/or reboots.

Here's the deal (or at least parts of it)... CoreTemp, TAT, SpeedFan and other apps determine a 'psuedo-core-temperature' by reading the on-die DTS and subtracting that value from the TCaseMax (or Tjunction) value. The DTS register 'counts down' as temperatures get higher.. when it hits zero (or maybe a few C before then), the cpu will throttle itself.

You can read the specifics at this link (http://www.thecoolest.zerobrains.com/CoreTemp/howitworks.html). But note the following:


Intel defines a certain Tjunction temperature for the processor. In the case of Yonah it is 85C&#176; or 100C&#176;. First of all the program reads from a Model Specific Register (or MSR), and detects the Tjunction temperature. A different MSR contains the temperature data, this data is represented as Delta in C&#176; between current temperature and Tjunction.

...I underlined the word 'detects', because as far as I know, this is not some value that can be read directly from the cpu registers, so 'detects' is somewhat of a misnomer. I think 'determine' or 'takes a wild guess at' would be better :). What it really does is look at the cpu ID and compares that to a look-up table of some hard-coded Tjunction values (maybe only 85C or 100C, and it might default to one or the other if it doesn't recognize that cpu).

So, let's make up some numbers for example purposes to demonstrate how this works...

Tjunction = 85C (<-- 'common opinion' of proper value for all earlier desktop C2D cpus)
DTS = 40C
psuedo-core-temp = 85C - 40C = 45C, reported as a Core Temp

Tjunction = 100C (<-- 'common opinion' of proper value for all earlier mobile and quad desktop cpus)
DTS = 40C
psuedo-core-temp = 100C - 40C = 60C, reported as a Core Temp

Tjunction = 111C (new value for G0 stepping Q6600??)
DTS = 40C
psuedo-core-temp = 111C - 40C = 71C, reported as a Core Temp

...the problem is that Intel changed the Tjunction value for these new G0 stepping cpus, but noone really knows yet exactly what that means. If you look at this link (http://intel.pcnalert.com/content/eolpcn/PCN107463-00.pdf), you'll see that for the new G0 stepping Q6600 at least, they:


Tcase for the Intel&#174; Core™2 Quad processor Q6600 and Intel&#174; Xeon&#174; processors X3220 and X3210 on G-0 stepping has been increased by 11 oC. Tcontrol offset will remain the same relative to increase in Tcase which will help reduce acoustics

...which probably means - at the very least - that they increased the Tjunction value by 11C for the quad. If the new E6x50 C2Ds actually use a 100C Tjunction, then your temps would be 15C higher than being reported now, but we don't yet know exactly what value they use (they might use 111C or any other value, up to 127C - who knows?).

Anyway, eventually Intel will spill the beans and let folks know how to determine Core Temps for these new stepping cpus, but all the current apps are mis-reporting them. In the meantime, there is one way to still get some 'usefull' information, using CoreTemp 0.95 and that is to enable the option circled in this image:

http://skinprops.com/images/ct095.jpg

...doing that will show you the value of the DTS as it counts down to zero. If you do that, you'll quickly see why your computer is rebooting itself with those outrageous (on air, at least) vCore settings :).

Cheers.

[msgclb]

...the problem is that Intel changed the Tjunction value for these new G0 stepping cpus, but no one really knows yet exactly what that means. If you look at this link (http://intel.pcnalert.com/content/eolpcn/PCN107463-00.pdf), you'll see that for the new G0 stepping Q6600 at least, they:

...which probably means - at the very least - that they increased the Tjunction value by 11C for the quad. If the new E6x50 C2Ds actually use a 100C Tjunction, then your temps would be 15C higher than being reported now, but we don't yet know exactly what value they use (they might use 111C or any other value, up to 127C - who knows?).

Anyway, eventually Intel will spill the beans and let folks know how to determine Core Temps for these new stepping cpus, but all the current apps are mis-reporting them. In the meantime, there is one way to still get some 'usefull' information, using CoreTemp 0.95 and that is to enable the option circled in this image:

http://skinprops.com/images/ct095.jpg

...doing that will show you the value of the DTS as it counts down to zero. If you do that, you'll quickly see why your computer is rebooting itself with those outrageous (on air, at least) vCore settings :).

Cheers.

Now that I've got my E6750 up and running I believe that the BIOS CPU temp might be the only correct temperature being reported.

Idle
----
BIOS CPU Temp: 26c
AI Suite CPU Temp: 17c
SpeedFan CPU Temp: 17c
SpeedFan Core 0: 22c
SpeedFan Core 1: 24c
CoreTemp 0.95 Tjunction: 85c
CoreTemp 0.95 Core 0: 22c
CoreTemp 0.95 Core 1: 24c
CoreTemp 0.95 Tjunction (Delta): 85c
CoreTemp 0.95 Core 0 (Delta): 63c to Tjunction Remaining
CoreTemp 0.95 Core 1 (Delta): 61c to Tjunction Remaining
TAT Core 0: 22c
TAT Core 1: 25c

I have my suspicion that all of the CPU temperatures are at least ~9c low except maybe my BIOS reading. I'll be keeping an eye on my CPU temperature when I put a load on it.

I would like to know what the BIOS knows about the CPU temperature that the Windows based programs don't know!

[Volcom]

Hey I am planning on getting myself a new toy probably the E6750 as it seems like they overclock more and the temps are way lower then the Q6600. My question is if I want to hit 3.6Ghz + what ram should I get will 800Mhz ddrII do?

[Lome]

;2320703']Guess so... But if cpu was overheating... I would be able to feel that heat passed onto the heatsink... Yet heatsink remains cool to touch.


Anyways, I tried more Vcore, and did not work at all... I tried 1.8 in the bios (which I presume would have been more like 1.75 real...) and it got into windows and then it locked up... computer started rebooting over and over and over and over...


hehe

had to clear bios.

i tried 1.6v in bios... and it would lock up in windows.

i'm running 1.575v in bios now... prime95 (version 25.3) and it has been running without error for 3 hours. i'll keep testing at this voltage... see how far i can get

1.6 isthe highest working setting on this board (p35-ds3r)

[tylerw13]

i just got my order comfirmation from ncix and its a

S/N: BX80562Q6600SLACR


nicely done

[MikalCarbine]

My E6750 stepping is an L719A747

Currently priming at 3.4GHz stock volts, more results and screenies to come!

Edit:

3.52Ghz with 1.38v in BIOS, 1.33v from uguru in windows

http://img403.imageshack.us/img403/1205/352ghzft0.jpg

[alpha0ne]

My E6750 stepping is an L719A747

Currently priming at 3.4GHz stock volts, more results and screenies to come!

Edit:

3.52Ghz with 1.38v in BIOS, 1.33v from uguru in windows


My POS L719A823 e6750 would'nt do that at even 1.59Vcore :down:

[MikalCarbine]

Thats strange, and you have the same board as me
http://www.xtremesystems.org/forums/images_black/editor/menupop.gif
http://www.xtremesystems.org/forums/images_black/editor/menupop.gif
Currently I'm priming at 3.68Ghz with 1.46 in BIOS, uguru reads ~1.41 but I keep getting random BSODs so I am playing with GTL/VTT and MCH voltages

I guess I got really lucky with this chip? I am hoping for 3.8 with decent voltages

[Rab]

got one of these this week, stepping L719B030
sitting @ 3.4 with 1.41 v, temps idle 36-39c full load 61-63c, this on stock cooler. (ultra soon) For a £120chip very happy with this, hoping can do a lot more with better cooling :)

[Drizzthsz]

Hi, this is my first post. So, what are the experinces so far? If i will have the chance to check the Fpo of the processor, for which numbers should I look for? Would you suggest an L719B rather than an A?
Thx.

[Rab]

upped to 3.6ghz, seems stable :)
what kind of temp drop will the ultra give me over stock cooler, -10c more ?
http://www.mirr.pwp.blueyonder.co.uk/36.jpg

[Drizzthsz]

upped to 3.6ghz, seems stable :)
what kind of temp drop will the ultra give me over stock cooler, -10c more ?
http://www.mirr.pwp.blueyonder.co.uk/36.jpg


Very nice results with stock cooling, I hope to get one that overclocks this nice. :up:

[kniwor]

The results seem good so far, most of u guys have not mentioned what type of air cooling u're using, also, it would be great if someone took the trouble of tabulating the results. Going to get an E6750, prolly tomorrow, will post the results soon.

Temperatures still are confusing, no way in hell can the temps be lower than room temperatures on air, it's just against thermodynamics, even water would not give lower temps than ambient, unless water itself is cooled by external source.

[MikalCarbine]

I think I asked this in some thread earlier, but what are safe volts for these chips under water for 24/7? ~1.55?

[lordkelmain]

These look quite good. Can't wait to get mine booted up.

- lk

[DerekT]

Motherboard: ASUS P5k Vanilla ||| BIOS: 0603

CPU: E6750 ||| Batch#: L722A494 ||| Core: 3600Mhz ||| Mult: 8x ||| Bus: 450Mhz ||| FSB: 1800Mhz ||| Voltage: 1.48v

Memory: Crucial Ballistix Tracer 8500 2GB (2x 1GB) ||| Ratio: 5:4 ||| Frequency: 1125Mhz ||| Timings: 5-5-5-15 ||| Voltage: 2.15v

Cooling: Sunbeam Tuniq Tower 120 @ 47C full Orthos (11hours) Load temps.

I have no doubt that these revisioned CPU's can handle 1.6V on air. My next step is 3.8Ghz.
http://i191.photobucket.com/albums/z225/DaveCim/675036Ghz.11hrs.jpg

I have two E6600 (L628B, L629B) and both can also make 3.6Ghz easy but the temps disallow running them higher. They get close to 70C at 3.6Ghz. They need far less voltage but run much hotter.

Here's an interesting point to note. I am using an ASUS P5K Vanilla (Bearlake chipset) based board and the latest BIOS (0603) which allows a choice of Strapping (200 - 800Mhz, 266 - 1066Mhz, and 333 - 1333Mhz). When I chose the 333 and clocked it up to 3.6Ghz I chose a lower (900Mhz) DRAM throughput and stability was quite tough to gain. When I dropped the Strap to 266 - 1066 and clocked it up to 3.6Ghz, I had 1125MHz on the RAM and stability was far easier to maintain. I am now at 1125 with 5-5-5-12. The Crucial Ballistix 1066 D9GMH has no problems up to 1285 @ 5-5-5-15. Something tells me that DDR3 will allow us to gain some great clocks on this revisioned CPU.

[Yori1989]

Rofl, my cpu @ 3.3ghz with 1.35vcore is 56degrees celcius @ load.

Somethings guess 3 times, i think my ISH isnt flat :/

[msgclb]

Rofl, my cpu @ 3.3ghz with 1.35vcore is 56degrees celcius @ load.

Somethings guess 3 times, i think my ISH isnt flat :/

The highest load CPU Temp that I've seen was 38c @3500MHz - 500FSB x7 DDR2-1000 when I temporarily had vcore at 1.6v. Using 1.35vcore the load temp stays around 25c-26c. My ambient temp is ~24c-25c. I'd bet the real temp is +15c. This is on water.

It almost looks like these G0 CPUs could run without a HSF.:D

I wouldn't bet on not being flat as causing your high temps. I'd bet on it not being seated properly.

[Yori1989]

The highest load CPU Temp that I've seen was 38c @3500MHz - 500FSB x7 DDR2-1000 when I temporarily had vcore at 1.6v. Using 1.35vcore the load temp stays around 25c-26c. My ambient temp is ~24c-25c. I'd bet the real temp is +15c. This is on water.

It almost looks like these G0 CPUs could run without a HSF.:D

I wouldn't bet on not being flat as causing your high temps. I'd bet on it not being seated properly.

reapplied, load temp is 54 degrees celsius :/(per core)

I still think its the IHS :(

[Mourngrym]

E6750 L722A421, Tuniq Tower 120, Asus P5K-E, 2GB Corsair 6400C4, 8800GTX, Corsair 520W, Antec P182.

Now running stable at 8x425=3400 Mhz @ 1.475 Vcore-BIOS (1.448 in CPU-Z, 1.440 load)

8x440=3520 Mhz was not Orthos stable at 1.5 Vcore-BIOS (1.472 CPU-Z). Decided I didn't want to go higher on the voltage. But I did try 8x450 @ 1.55 Vcore-BIOS just for fun, but was unstable.

These E6750s seem a mixed bag indeed. :down:

[Mourngrym]

Cooling: Sunbeam Tuniq Tower 120 @ 47C full Orthos (11hours) Load temps.


I'm guessing that you haven't taken the different temp readings for E6750 into account. Disable PECI in BIOS, load up SpeedFan and add +15C to the core temps. I suspect you will end up around 62C. SpeedFan also shows the "CPU" temp which is the sensor between the two cores. Compare with that and you will see if the reading is reasonable. My temps are about 63-64 core and 61-62 CPU with full Orthos, at 3400 Mhz, 1.475 Vcore-BIOS and Tuniq @ 1500RPM. Idles at about 37C. No one knows 100% sure how to read the temps yet though, but these seem reasonable to me.

[RPGWiZaRD]

Man all these negative results about E6750 makes me only more nervous that I ordered one on friday. :down: My goal is 3.6GHz+ stable on air, if I don't reach that I'll prolly sell it. xD The results varies so much, some users have reached 3.4GHz even on stock volts, others need close to 1.5v for that lol and I've seen huge variance even for exact same stepping. All that makes me wonder if the results aren't highly dependant on the mobo you have...

[slayer_warrior]

(e6750 go batch L722a494)

i did 3.4 ghz on stock 1.35v but after that i had to up the volts 2 times for ever 5 mhz get stable in orth stop at 3.6 1.43 but crash after couple hours got it stable at 1.45 underload 1.42v 6 hours orth stable before i stop orth. but the temp under load 39/40c in tat,core temp .94, speedfan these temp can not be right. idle they are 9/10c i live in the south! i'm very happy with this chip!

coming from amd 4000 single core stock to intel was very good upgrade very very happy >:P. runs my games alot better

e6750 go (1.45v 450x8 3.6ghz)
ga p35-ds3p stock volts
xfx7800 gtx oc 490/1.2ghz
g.skill 6400 hz 2.1v 900mhz 4-4-4-12 with 80 mm fan cooling
wd 16mb 250 gig sata2 hdd
sony dvd burner
cheap dvd,cd rom need one was short on cash lol.
ocz powersteam 520
5 80mm case fans

[DerekT]

I'm guessing that you haven't taken the different temp readings for E6750 into account. Disable PECI in BIOS, load up SpeedFan and add +15C to the core temps. I suspect you will end up around 62C. SpeedFan also shows the "CPU" temp which is the sensor between the two cores. Compare with that and you will see if the reading is reasonable. My temps are about 63-64 core and 61-62 CPU with full Orthos, at 3400 Mhz, 1.475 Vcore-BIOS and Tuniq @ 1500RPM. Idles at about 37C. No one knows 100&#37; sure how to read the temps yet though, but these seem reasonable to me.

The only difference is that when I add 15+ C to the values, they increase.

LOL

You say nobody is quite sure yet, then you ask to arbitrarily increase the values to find values that are close to the prior stepping/revision.

My answer?

Uh, no, I don't have to do that. I can easily tell by just testing the differential between a 6600 L630A and this new chip. I installed stock coolers, then set the values both to 8 X and ramp up the FSB to 450. Then I tested the warmth outputted with a digital thermal readout. The L630A is definitely warmer than this new one. For my two processors tested, it is greater than 10C and I can only speak to my two tested processors. Time will tell, but your method makes no real scientific sense.

Add 15C arbitrarily? That makes no sense unless you knew for sure the values of differentiation. You do not so what you say makes no sense and no sense = nonsense.

That is not to say that there is not a differential. Just that your arbitrarily chosen offset is not scientific or proven whatsoever.

[kniwor]

Was just testing my E6750 today, the processor seem pretty decent to me, the more voltage I give, the higher it goes, but the problem is my temperature seems to be rising a bit too much, it's stable at 3600Mhx@1.5V in BIOS of ASUS-P5B-Deluxe.

How do I know the actual Vcore, CPUZ gives absurd readings.

What is the tjunction for the E6750 processor. My delta to Tjunction goes to as low as 20c on both cores while running it 3600Mhz at 1.5V.

It is stable at 3200Mhz at 1.3125V, I havent yet tested it at higher than 1.5V in BIOS as I was too concerned about the temperatures, will apply AS5 later and then see if that helps, I'm on stock cooling, and I cant post the screenies right now due to problems in my internet connection.

[DerekT]

Was just testing my E6750 today, the processor seem pretty decent to me, the more voltage I give, the higher it goes, but the problem is my temperature seems to be rising a bit too much, it's stable at 3600Mhx@1.5V in BIOS of ASUS-P5B-Deluxe.

That's where I stand with my setup, and yes, it desires 1.5V as less does not give me long term stability, and I want long term proof for purposes of folding.


How do I know the actual Vcore, CPUZ gives absurd readings.

What is the tjunction for the E6750 processor. My delta to Tjunction goes to as low as 20c on both cores while running it 3600Mhz at 1.5V.

You can download Everest which will give you a more true voltage reading or you can use ASUS Probe II which will as well. With regard to the CPU idle thermals, it would seem that a new offset needs to be created for this new revision. I had personally thought that with the release of the Intel digital thermal sensors embedded singularly in the core, this would be a thing of the past. It's rather confusing as to why the DTS does not give a true reading. It's also quite nonsensical that the CPU reading would be of a higher thermal than the core readings. This is contrary to simple electronic physics.

Have you downloaded the latest BIOS (P5B Deluxe BIOS version 1215)?

http://support.asus.com/download/download.aspx?SLanguage=en-us

EDIT:

I'm on stock cooling.

I never use stock cooling, and I would think that you might well find thermal and other issues with stock cooling. Also, even though P5B has allowed a 1333FSB processor, there might well be upcoming BIOS fixes that correct and offset the temperatures to bring them more in line at the low level and possibly at the top level as well.

I advise you to move to better cooling. 3.6Ghz and 1.5V is not a good spot for the Intel Stock Heatsink.

[Mourngrym]

The only difference is that when I add 15+ C to the values, they increase.

LOL

You say nobody is quite sure yet, then you ask to arbitrarily increase the values to find values that are close to the prior stepping/revision.

My answer?

Uh, no, I don't have to do that. I can easily tell by just testing the differential between a 6600 L630A and this new chip. I installed stock coolers, then set the values both to 8 X and ramp up the FSB to 450. Then I tested the warmth outputted with a digital thermal readout. The L630A is definitely warmer than this new one. For my two processors tested, it is greater than 10C and I can only speak to my two tested processors. Time will tell, but your method makes no real scientific sense.

Add 15C arbitrarily? That makes no sense unless you knew for sure the values of differentiation. You do not so what you say makes no sense and no sense = nonsense.

That is not to say that there is not a differential. Just that your arbitrarily chosen offset is not scientific or proven whatsoever.

True, no scientific proof or anything. I just wanted to point out that your temps *may* be on the low side. And of course you don't *have* to do anything, it was just some information for you that you may judge as you see fit. As for it being arbitrary, well yes, but it currently seems like the most reasonable educated guess that I have found. This would be based on the assumtion that Intel has chosen Tjunction = 100C for these CPUs instead of 85C. Also, when I compare the core temps reported by SpeedFan with the temp reported for "CPU", it seems reasonable that the cores are a few degrees higher. I find it unlikely that the core temps would be lower than what the "CPU" sensor shows. I personally would rather be pessimistic on temperature than optimistic until we know. Hopefully Intel will reveal this soon.

[DerekT]

True, no scientific proof or anything. I just wanted to point out that your temps *may* be on the low side. And of course you don't *have* to do anything, it was just some information for you that you may judge as you see fit. As for it being arbitrary, well yes, but it currently seems like the most reasonable educated guess that I have found. This would be based on the assumtion that Intel has chosen Tjunction = 100C for these CPUs instead of 85C. Also, when I compare the core temps reported by SpeedFan with the temp reported for "CPU", it seems reasonable that the cores are a few degrees higher. I find it unlikely that the core temps would be lower than what the "CPU" sensor shows. I personally would rather be pessimistic on temperature than optimistic until we know. Hopefully Intel will reveal this soon.

I agree that the temps *may* well be inaccurate. I believe that they are, however I do not agree with the arbitrarily chosen 15+ C addition. Regardless of a T-Junction of 100 for the L stepped revision, the A and B stepped are still at 85C and it is more likely that these G0's are not of those inferior fabricated processors.

You stated that I haven't taken the temperature differentiation into account. You need to say " possible" in that statement in my view. That statement presupposes that it is not a guess and that the information is known. It is not, and your arbitrarily chosen 15+C increase is not at all (at this time) indicative of reality.

So, even though I agree with you that thermal differentiation is very possible and likely, I have to disagree with your choice of a 100 - 85 = 15C+ quantification. Simple thermal testing has shown me that there is in fact a fair difference of over 10C between the L630A (E6600) and the L722A(E6750) when both cpu's are running 450MHz FSB and an 8X multi. The fact of the FAB (LxxxAxxx) shows that it is somewhat doubtful that the T-Junction has changed although it is possible. Certainly my thermals show the opposite, both on internal core DTS and applied (IHS) thermal sensor. Thus I disagree with your statement of "Educated Guess".

[HeavyH20]

The only thing about the E6750 that hurts is the 8x multi. My 680i board limits the OC to 474 (1896) FSB to net 3792 MHz. That is with 1.52 VCore.

[Mourngrym]

I agree that the temps *may* well be inaccurate. I believe that they are, however I do not agree with the arbitrarily chosen 15+ C addition. Regardless of a T-Junction of 100 for the L stepped revision, the A and B stepped are still at 85C and it is more likely that these G0's are not of those inferior fabricated processors.

You stated that I haven't taken the temperature differentiation into account. You need to say " possible" in that statement in my view. That statement presupposes that it is not a guess and that the information is known. It is not, and your arbitrarily chosen 15+C increase is not at all (at this time) indicative of reality.

So, even though I agree with you that thermal differentiation is very possible and likely, I have to disagree with your choice of a 100 - 85 = 15C+ quantification. Simple thermal testing has shown me that there is in fact a fair difference of over 10C between the L630A (E6600) and the L722A(E6750) when both cpu's are running 450MHz FSB and an 8X multi. The fact of the FAB (LxxxAxxx) shows that it is somewhat doubtful that the T-Junction has changed although it is possible. Certainly my thermals show the opposite, both on internal core DTS and applied (IHS) thermal sensor. Thus I disagree with your statement of "Educated Guess".

The reason why I replied was because I see many incorrect (too low) temps posted on various forums. It's important to note that they might very well be higher for those who do not know (so they don't damage something). I might not have used the correct wording, my apologies for that. Not everyone has english as their native tongue.

Peace. :)

[DerekT]

The reason why I replied was because I see many incorrect (too low) temps posted on various forums.

:up:

Indeed, and I agree with you on this view. I am certain that these CPU's do in fact run cooler. How much is the point of contention at this time.

I have two E6600 (L628B and L629B) that run far warmer than the E6750 (L722A). Even my cooler E6600 (L630A) runs a good bit warmer than the E6750 and this is with an IHS applied thermal sensor. ~15C for the DTS and ~9C with the L62xB's and ~11C for the DTS and ~6C with the L630A. I had to drop the FSB of the L62xB's to 400 X 9 rather than 450 X 8 as they ran ~60C at 400 X 9 vs 72C @ 450 X 8. There's nowhere near that heat output on the G0 L722A. Anyone in the Lower Fraser Valley of BC can buy these E6600's off of me as I am moving entirely to the G0's.

[alex17 GTX]

Guys. Have you tested if the cpu:dram multipliers works? I mean : can you use something else than 1:1 on 965p motherboards?
I'm asking this becouse somenone tested an e6750 on a dfi dark and other ratio than 1:1 doesn't works. :shakes:

[DerekT]

Guys. Have you tested if the cpu:dram multipliers works? I mean : can you use something else than 1:1 on 965p motherboards?
I'm asking this becouse somenone tested an e6750 on a dfi dark and other ratio than 1:1 doesn't works. :shakes:

On this P5K.


Multiplier = 8 X
Strap = 200Mhz
FSB = 450Mhz
Mem Freq. Avail = 1500Mhz, or 1800Mhz


Multiplier = 8 X
Strap = 266MHz
FSB = 450MHz
Mem Freq. Avail = 1125Mhz, 1350Mhz, 1800Mhz


Multiplier = 8 X
Strap = 333Mhz
FSB = 450Mhz
Mem Freq. Avail = 900Mhz, 1080Mhz, 1440Mhz

[ziddey]

mikal, whereabouts in ma are you from? I have the same batch (l719a747) e6750 as you, and am getting horrid results. got an ip35-e enroute in case that helps over my dfi p965-s which runs 24/7 at 8x450=3600 with my e6400.

[kniwor]

That's where I stand with my setup, and yes, it desires 1.5V as less does not give me long term stability, and I want long term proof for purposes of folding.



You can download Everest which will give you a more true voltage reading or you can use ASUS Probe II which will as well. With regard to the CPU idle thermals, it would seem that a new offset needs to be created for this new revision. I had personally thought that with the release of the Intel digital thermal sensors embedded singularly in the core, this would be a thing of the past. It's rather confusing as to why the DTS does not give a true reading. It's also quite nonsensical that the CPU reading would be of a higher thermal than the core readings. This is contrary to simple electronic physics.

Have you downloaded the latest BIOS (P5B Deluxe BIOS version 1215)?

http://support.asus.com/download/download.aspx?SLanguage=en-us

EDIT:


I never use stock cooling, and I would think that you might well find thermal and other issues with stock cooling. Also, even though P5B has allowed a 1333FSB processor, there might well be upcoming BIOS fixes that correct and offset the temperatures to bring them more in line at the low level and possibly at the top level as well.

I advise you to move to better cooling. 3.6Ghz and 1.5V is not a good spot for the Intel Stock Heatsink.

Yeah I'm using the latest BIOS, will have to get some aftermarket cooling it seems.

[weescott]

I got my E6750 this morning. First boot into Windows was at 3.2Ghz and stock volts. :D

Seems stable at 3640mhz. 5FSB more and orthos fails.

http://www.weescott.co.uk/images/3640.jpg

http://www.weescott.co.uk/images/3712_13_900.jpg

I imagine this chip would do a lot more given better cooling.

Zalman CNPS7500
Asus P5K Deluxe with latest bios.

[alex17 GTX]

On this P5K.


Multiplier = 8 X
Strap = 200Mhz
FSB = 450Mhz
Mem Freq. Avail = 1500Mhz, or 1800Mhz


Multiplier = 8 X
Strap = 266MHz
FSB = 450MHz
Mem Freq. Avail = 1125Mhz, 1350Mhz, 1800Mhz


Multiplier = 8 X
Strap = 333Mhz
FSB = 450Mhz
Mem Freq. Avail = 900Mhz, 1080Mhz, 1440Mhz

I was asking for rezults on 965p chipset not p35 .

[Drizzthsz]

I also have an E6750, fpo: L722A247.
Currently I have stock cooling. Now doing Orthos Ram stressing at 3.3Ghz. Voltage is the basic setting. Tat says it's at 51 degrees after 10 minutes Orthos. Ohh it stopped just now. My Kingmax 1066 seems to be very bad, now they are at 2.1V and fails in Orthos after 4 minutes@1000Mhz. :S
What is the max. voltage i should give to the ram?
Having P5KC mobo.

[Drizzthsz]

Though 3.2 is stable for sure.

[msgclb]

I also have an E6750, fpo: L722A247.
Currently I have stock cooling. Now doing Orthos Ram stressing at 3.3Ghz. Voltage is the basic setting. Tat says it's at 51 degrees after 10 minutes Orthos. Ohh it stopped just now. My Kingmax 1066 seems to be very bad, now they are at 2.1V and fails in Orthos after 4 minutes@1000Mhz. :S
What is the max. voltage i should give to the ram?
Having P5KC mobo.

I'm currently testing 3360MHz - 420FSB x8 4:5 using the following settings that has been stable for over an hour:



CPU Voltage: 1.4
CPU Voltage Reference: AUTO
CPU Voltage Damper: Enabled
CPU PLL Voltage: 1.50
DRAM Voltage: 2.20
FSB Termination Voltage: 1.40
North Bridge Voltage: 1.40
North Bridge Voltage Reference: AUTO
South Bridge Voltage: 1.20


Personally I leave my memory voltage at stock and adjust the FSB Termination Voltage, North Bridge Voltage and the South Bridge Voltage to find the max stable memory frequency. I did this with a low (333+) FSB and used the dividers to raise the memory frequency until I found the max stable.

[alex17 GTX]

I quess you tested on the p5k. Can anybody test a 965p mobo ? (cpu:dram ratio)

[DerekT]

I was asking for rezults on 965p chipset not p35 .

My mistake. On Intel chipsets, you can only run a divider upwards. In other words, you are only allowed to run your RAM faster than the CPU. All the dividers on P965/P35 (4:5, 2:3, 3:4, 1:2, 5:6, 5:8, etc) are dividers that run the memory faster than at 1:1 FSB : DRAM. The nVidia chipsets can clock memory independently to the FSB.

[alex17 GTX]

My mistake. On Intel chipsets, you can only run a divider upwards. In other words, you are only allowed to run your RAM faster than the CPU. All the dividers on P965/P35 (4:5, 2:3, 3:4, 1:2, 5:6, 5:8, etc) are dividers that run the memory faster than at 1:1 FSB : DRAM. The nVidia chipsets can clock memory independently to the FSB.

I knew that. :p: The problem is that somenone tested a DFI Dark + e6750 and all the dividers but 1:1 don't work. Even if you select other divider the ratio still remains 1:1. That's a big problem for me because i'm going to have 2GB Mushkin D9 that can reach 1200+ 5-5-5-x, and if i can't use other divider than 1:1 i'll actually be limited at 500+ mhz for memory. :(

Please someone else test this.

[jhl81]

I knew that. The problem is that somenone tested a DFI Dark + e6750 and all the dividers but 1:1 don't work. Even if you select other divider the ratio still remains 1:1. That's a big problem for me because i'm going to have 2GB Mushkin D9 that can reach 1200+ 5-5-5-x, and if i can't use other divider than 1:1 i'll actually be limited at 500+ mhz for memory.

Please someone else test this.


I have the 965P chipset Gigabyte 965p-ds3p rev 3.3, just as i was curious i tested it out on another ratio have a look at image ... maybe its just the dfi bios bug???

http://img258.imageshack.us/my.php?image=memoryratiowe3.png

but i like the 1:1 on my mem as its pretty cheap

http://img66.imageshack.us/my.php?image=3900mhzscreenshot6fd3.png

[jhl81]

hmm image not showing ... ok I'll link it ...

mem ratio image

http://img258.imageshack.us/my.php?image=memoryratiowe3.png

my result mem at 1:1

http://img66.imageshack.us/my.php?image=3900mhzscreenshot6fd3.png

[zaer0]

weee got my playtoys today.. will post some tests later , played a bit CSS and it seems stable so far :)

1,6vcore on board and 1,56 real. everything aircooled.

http://img389.imageshack.us/img389/885/bildbh2.jpg (http://imageshack.us)

[msgclb]

weee got my playtoys today.. will post some tests later , played a bit CSS and it seems stable so far :)

1,6vcore on board and 1,56 real. everything aircooled.



You might want to try CPU-Z 1.40.8 and see if it shows your 1.56 real core voltage.:)

http://www.xtremesystems.org/forums/showpost.php?p=2341055&postcount=1

[zaer0]

You might want to try CPU-Z 1.40.8 and see if it shows your 1.56 real core voltage.:)

http://www.xtremesystems.org/forums/showpost.php?p=2341055&postcount=1

just for you :)

http://img390.imageshack.us/img390/8105/prove3lo6.jpg (http://imageshack.us)

[styxnpicks]

hey guys, I'm new around here, just got my e6750 up and running. its rock solid @ 3.2Ghz with the shipped BIOS, I flashed to 1303 hopping to get 3.6 out of it. havn't really had time to push it yet, but so far I'm enjoying my new machine. sure beats the hell out of my old 2800xp/5900xt machine

[MacClipper]

Chucked aside the Q6600 and back to E6750 fun for now, duals are so much easier to clock.

3.72GHz at 465x8 1.45V BIOS on shaded Commando,
http://i173.photobucket.com/albums/w78/MacClipper/E6750/3720_465x8_1450V_OCCT_Stable.jpghttp://i173.photobucket.com/albums/w78/MacClipper/E6750/2007-08-10-01h55-VCore.png

[RPGWiZaRD]

zaer0> Nice! I got a confirmation yesterday from DriveCity.de that my order with my E6750 tray has been shipped, I think these are probably really fresh ones as it seems they ran out of stock just before I ordered and I ordered on Friday last week and there's more in stock of them now so this might be interesting if got a fresh new batch. Where you got yours from btw?

Hope mine will overclock as good. xD Will of course post results later. Hmm, very various results from this chip, 4GHz 1.56v and 3.4~3.5GHz 1.5~1.55v. Hard to say what to expect before you get to test them out yourself. :shrug:

[sam95ta]

Can some one help me with my 6750.I can easly do 3.75 orthos stable,low volts 1.46 and good temps 49 load.Anything above 3.75 no mater how many volts I give it windows will not load.Is it my p5b deluxe or this cpu.Thinking I may need a p35 board to go higher.

[jhl81]

Can some one help me with my 6750.I can easly do 3.75 orthos stable,low volts 1.46 and good temps 49 load.Anything above 3.75 no mater how many volts I give it windows will not load.Is it my p5b deluxe or this cpu.Thinking I may need a p35 board to go higher.

I heard that you could go a little higher with p35 chipsets but how high do you want to go?? for the extra 100 or 200mhz idon't think its worth it imo. i have the 965P chipset and i'm running 3.9 and i've seen alot of ppl stuck at around 3.6 even with the p35 chipset boards so i think its more your processor not your motherboard thats the hold back.

http://img49.imageshack.us/img49/5776/3900mhzscreenshot6df0.png (http://imageshack.us)

[m_enanos]

A friend have buy one of theese processors. Testing it here is the result:

http://img167.imageshack.us/img167/8026/e6750g033128vek2.th.jpg (http://img167.imageshack.us/my.php?image=e6750g033128vek2.jpg)

G0 Owns -

[Rab]

I heard that you could go a little higher with p35 chipsets but how high do you want to go?? for the extra 100 or 200mhz idon't think its worth it imo. i have the 965P chipset and i'm running 3.9 and i've seen alot of ppl stuck at around 3.6 even with the p35 chipset boards so i think its more your processor not your motherboard thats the hold back.

http://img49.imageshack.us/img49/5776/3900mhzscreenshot6df0.png (http://imageshack.us)


nice overclock, mines wont go over 3.8 without crazy volts & temps, settle for 3.7 :)

[exo]

Can anybody test a 965p mobo ? (cpu:dram ratio)

Hi, no problems using 1:1 on P5B Deluxe and L719B030 E6750. 515x8 (http://valid.x86-secret.com/show_oc.php?id=226155)

[alex17 GTX]

Pff. Can't you read all? I said the other dividers don't work. 1:1 is the only one that works on DFI Dark

[exo]

so rude :P 4:5 (http://valid.x86-secret.com/show_oc.php?id=227989)

[Locust]

I heard that you could go a little higher with p35 chipsets but how high do you want to go?? for the extra 100 or 200mhz idon't think its worth it imo. i have the 965P chipset and i'm running 3.9 and i've seen alot of ppl stuck at around 3.6 even with the p35 chipset boards so i think its more your processor not your motherboard thats the hold back.




Nice chip m8! good job!

[Arion]

my e6750 (system i sign) is at 3,4Ghz atm, 1,475V bios, 1,456V CPU-z. This is stable in orthos for 14h. 433x8 failed after 2h with 1,5V bios. Guess its dont worth the xtra voltage it takes to go higher, at least in 24/7.

And my memory was a bad suprise, everbody seemed to reach atleast 900 and often 1000 with those, my are with nanya B chips, 880 Max, cl 4 = no boot, higher volts makes it unstable and above 2,1 = no boot.

Any suggestions that might improve my OC?

And btw, first post, but I&#180;ve been reading this forum for years! It is really exciting, fun and intresting.

[kadinho]

weekend tests with my friend nepo:


E6750 + P35C-DS3R + GSKILL DDR2 PC6400 HZ AIR COOLED BY TUNIQ


http://img262.imageshack.us/img262/8539/e67503920mw8.jpg (http://imageshack.us)

http://img262.imageshack.us/img262/4162/e6570505fsbcr1.jpg (http://imageshack.us)

http://img183.imageshack.us/img183/2627/p35cds3rddr2600eq3.jpg (http://imageshack.us)



I can take 500*8 :( even 1.55 vcore :( i suspect the timmings os the mems or other little settings.

BTW it's a nice results and temps. this G0 revision it's great !!!

cumps

[jhl81]

My new speed and specs, problem was the northbridge got too hot:mad: , even to touch for 1 sec .... maybe coz of the high fsb on these things ... i do have extra fan blowing on it but i guess thats not enough and i can't fit aftermarket chipset heatsink coz of the tr ultra ... does anyone else have this prob? well heres my speed with the lowest voltage i could get it stable without orthos failing in the first hour .... will test orthos until 12hr+ small and blend stable.

http://img443.imageshack.us/img443/8780/3600mhzscreenshot1fy5.png (http://imageshack.us)

http://img183.imageshack.us/img183/8343/spa0163aq6.jpg (http://imageshack.us)

[RPGWiZaRD]

OK I may have a golden E6750 chip here. FPO: L724A095.

So far testing stock volts overclock range, stock cpu 1.35v BIOS which gives 1.33v idle and 1.31v load. Mobo volts are untouched only vdimm raised to +0.2v. Running it as an open bench environment and it's raining outside so that's why temps are so low with Tuniq Tower 120 at only ~1570rpm.

http://hidebehind.com/lthumbs/29/29B58F.jpg (http://hidebehind.com/29B58F)

Will try 3.4GHz next. :p: Can't believe this, I've only had AMD setups before and I always had bad luck getting retail parts but now the first time I try Intel I immediatly have this luck! Maybe it's a sign. :D Doesn't matter, Intel has stolen my whole heart now. Now it has run 1&#189;hrs when I manually stop the Orthos session at 3.36GHz 1.312v.

[RPGWiZaRD]

Not as good as I thought it would be, scales really bad with voltages it seems. Anyways here's what I go for as 24/7 config.

http://img466.imageshack.us/img466/231/e6750ram563tweaked2rm0.jpg (http://imageshack.us)

[Razer]

Here is mine setup:

E6750 (G0 Stepping, FPO: L719A782), GB P35 DS4, 2GB Crucial Ballistix PC5300

http://www.imagesforme.com/images/2790superpi.JPG

Validation (http://valid.x86-secret.com/show_oc.php?id=233722)

For some reason my SPi score is bad for this frequency, any advice?

And yes, believe it or not, this score is with stock HSF :D

[Supertim0r]

1333 strap

[Mugen Yarrr]

Unfortunately, I just tried mine at 425x8 (3.4) on an IP35 Pro and Orthos failed after 30 minutes. I'm gonna drop the multi to 6 and see if my RAM is stable at 450. I'd like to know if it's the processor or the RAM that is sucking :(

EDIT: This *is* at stock voltages, so it's not like I have completely hit a wall here, but I was just seeing what I could do at stock

[Prodigys]

http://i15.tinypic.com/4tktjrm.png

http://i19.tinypic.com/6f4vyn7.png

http://i10.tinypic.com/4qe1toi.png


Just was playing with the CPU for 2 hours :ROTF: .

[stuck]

http://img179.imageshack.us/img179/9776/superpi67502ta0.jpg

E6750@3640 (455x8) +0.125V from stock
Ballistix@910 (8-3-3-3-2T)

I think the mobo is locking my cpu, i try to change this mobo for a new p35 or x38...

[stuck]

update:
http://img515.imageshack.us/img515/1978/superpi67504maxzn4.jpg
vcore = +0.2125V
vdimm = 2.4V
FSB vtt = +20&#37;
NB = 1.5V
SB = 1.6V
cpu: 475x8
mem: 475@4-3-3-3-2T
cooler: Big typhoon VX
spi 2m: 34.422 s
batch: L719A776

[nidecker]

Hi guys
This's my 1st post on this forum so...hi everybody :)

Some results of mine E6750 boxed, setup on sign.

Everthing done with a thermalright ultra 120 extreme and a Noctua nc-u6 for the chipset cooling.

3,6Ghz@1,42V Orthos stable

http://img178.imageshack.us/img178/7221/orthos450x8142rz1.th.jpg (http://img178.imageshack.us/my.php?image=orthos450x8142rz1.jpg)

490 fsb stable (after have passed double 32M Spi)

http://img356.imageshack.us/img356/7657/orthos490stabilihe8.th.jpg (http://img356.imageshack.us/my.php?image=orthos490stabilihe8.jpg)

Same thing but 500 fsb stable

http://img356.imageshack.us/img356/8119/orthos500stabiliaw4.th.jpg (http://img356.imageshack.us/my.php?image=orthos500stabiliaw4.jpg)

Double 32M SPi@4 Ghz

http://img341.imageshack.us/img341/9081/pi32m4ghzstabiliks5.th.jpg (http://img341.imageshack.us/my.php?image=pi32m4ghzstabiliks5.jpg)

Max fsb seems to be at 515Mhz but this result was obteined with the old cooling system (Scythe Infinity and stock chipset block). With the new one I hope to take more Mhz :)

[chinaguy]

I am sorry to say I am only clocking my e6750 at 3.2Ghz but here are my temperature reading, Mobo GA P35C DS3R.

I left my PC runninh all day while I was at work, then used Speedfan to take a reading.

Mobo 30C
CPU 1,2 30C

Then rebooted and took a bios reading

Mobo 30C
CPU 1,2 39C

So I added 9C to the SpeedFan readings.

Any body have any similar readings?

[MacClipper]

Haven't posted in this thread for a while now.

Found some time to some testing for lowest stable Vcore since doing the pencil Vdroop, this early E6750 can actually run 3.6GHz at around VID (VID 1.35v, BIOS Vcore set at 1.375v) which isn't too bad at all.

http://i173.photobucket.com/albums/w78/MacClipper/E6750/3600_450FSB_1375v_Stable2.jpg

PS: Somehow, OCCT identifies the E6750 as a Merom in Vista x64. lol

OK, passed 3h of P95 = enough for today. ZZZzzzz...

http://i173.photobucket.com/albums/w78/MacClipper/E6750/3600_450FSB_1375v_Prime95_Stable.jpg