Yes thats your VID :up:
Lol create a signature we didn't know you had phase and yes with phase or a low vid cpu on water you can get Prime95 stable in that speed.
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My L804 with 1.325V VID is doing 8x400=3200Mhz at 1.30V stable. I can push higher but the chip requires more voltage. At 3.2 my load temps are around 56-59C on a silent system. What do you guys think of my chip? Btw, should I enable C1E?
Just realized that now my local MicroCenter is completely out of the earlier G0 Q6600. Now, all their Q6600s are the light blue box.
I know why I can't get it stable, my ram took a dump. Memtest at 800mhz had 80+ errors in 30 seconds or so. Glad Patriot has a nice RMA service.
I've lowered my multiplier to 8x and increased the FSB to 450. Which means my system is still running at 3600Mhz. My ram is running at a 1:1 ratio at 900Mhz with 4-4-4-12 timings. My system is very stable at 1.42v
However, my Super Pi 32M calculations are taking 1 minute longer than running 9x400. 14:20 before and with a FSB of 450 my 32M time takes 15:22 minutes. My 1M calculations are slower as well.
My 3DMark06 scores are the same as before changing the FSB.
Shouldn't I gain a little performance considering my FSB is 450 instead of 400?
Thanks for the link, it was interesting and as overclocking does the vdroop mod will affect the healthy of the quad although less vcore is needed.
Here is a pick from x-bit:
“I have to say that P5E is not free from a classical drawback of all Asus mainboards: significant processor Vcore drop under Vdroop load. We performed some tests with a quad-core CPU running at 3.6GHz and revealed that the processor voltage drops by 0.048V. Luckily, there is useful advice online on how to modify the mainboard in a quick way to eliminate this unpleasant effect that can hinder successful overclocking. Asus, unfortunately, didn’t offer any solution of their own to this problem. The BIOS of P5E doesn’t have the CPU Voltage Damper introduced in the P5K series, and the available Loadline Calibration option didn’t prove efficient enough. By the way, we noticed the processor voltage got simply reduced. For example, our mainboard sample sent 0.058V less to the processor than was set in the BIOS.”
And here is another from the last review at anandtech:
“Loadline Calibration - [Enabled, Disabled] Setting Enabled will effectively remove any negative feedback in the CPU supply voltage regulation circuit. This means that there will be little to no difference between the CPU supply voltage at idle and full-load. This does not mean however that there will be no offset seen between the idle voltage and the CPU Voltage VID as selected in BIOS. Disabled follows the Intel specification and allows the CPU supply voltage to droop under load as properly designed. We recommend you leave this Disabled and increase CPU Voltage as needed to satisfy the minimum operating voltage needed under load.”
Do the new Q6600s still clock as well as the good G0 chips?
With the Q9450 costing 100 euro more than the Q6600 and only having a 8X multi the Q6600 seems like a more attractive chip if it will still hit 3.6-3.8ghz
So, Q6600 or Q9450? :p
Q6600 :D
#Batch: 740A740
Vid: 1.2000V
http://img230.imageshack.us/img230/6...30hsab7.th.jpg
Is that one of the newer ligher blue boxes Okorn ? nice clocker you got there
I know this is the Q6600 thread, but since there's no thread for it:
I just picked up a Q6700 this afternoon. I was at the shop as they got new Q6600's in, but they had one Q6700 on the shelf and the price drop has come into effect. $300 for this chip! 10x multi and what should be a higher binned Q6600 so I figured I'd pay the extra $50 and grab it.
L727B332 - I'll post results later.
I just received my q6600- I was afraid I was going to get one from the L8xx batch, and I did:down: , but the price (online only-not honored in store) of $180 was too tempting.
The VID is 1.325 and the batch is L804. Granted I've only tried it on my 780i mobo (which I consider to be a flaky overclocker), but I'm not sure it will even hit 3.6 ghz. I've got it OCCT stable for a half hour so far at 3.15ghz (450x7), but that required 1.6125v vcore (bios)/1.56v (everest). I need to set the vcore to around 1.675v (bios)/1.62ish (everest) to reliably get into windows at 3.6ghz (either 400x9 or 450x8), but at this speed OCCT crashes within a minute.
I've tried the memory (2x2gb gskill 1066) both linked and unlinked (and usually underclocked), and used a range of GTL REF values, and it doesn't seem to make any difference. On this board, I don't think it is capable of 3.6ghz unless I'm willing to go over 1.7v vcore in the bios:eek: !
I'm considering returning it and seeing if I can find any locally from an L7xx batch.
Yup, the latest batch are bad clockers. Mine also L80x with VID 1.325V. I can do 3.2Ghz at 1.3V stable. Anything higher than that requires much more voltage. 3.4Ghz requires at least 1.375V. Tried 1.45V at 3.6Ghz and Windows will crash after priming a few minutes.
Wow sorry but thats a rubbish chip! Why don't search for a good batch or pay a little more for a good one?!
I have the 1.21vid L745A793 it is Prime95 blend 8hrs stable with 1.26v (bios) and 1.28v CPUZ.
Also it hits 4005Mhz with 1.39v (bios) and 1.42v cpuz (wPrime, SuperPi, 3dMark0103,05,06 and Crysis stable).
So just do some research before you buy, I saw somewhere in this thread for a eBay add with a 1.20vid cpu.
Heres 24/7 settings on my batch:
http://i28.tinypic.com/28lcjgk.png
* temp readings: closed case, dual rad w/ 7v fans, 24oC room.
It's definitely not what I would consider a winner of a chip. I thought I would take a chance that all of the L8xx batch might not be such overclocking duds. I just didn't think I would get such a voltage hog. RMA time I suppose (luckily I have a 15 day return option at Fry's).
Is the VID printed anywhere on the retail box? I know how to find it once in windows with programs like Coretemp- just wondering if there is a way to find the diamond in the rough without having to install the cpu...
No it's not printed anywhere, the only way to get a good chip it's to google batches #.
Like I did, so you already have a winner batch on my last post, you can also see some VID's here:
http://www.forumdeluxx.de/forum/showthread.php?t=438595
And here: http://www.xtremesystems.org/forums/...d.php?t=178263
Hey Jor3lBR,
Thanks for the info! I'll see if I can find any from the desirable batches at the local brick and mortar purveyors:up:!
On a semi-related topic- isn't Intel cutting CPU prices soon? (tomorrow?)
As for the price cut, Intel has one "scheduled" for today, the 20th. The Q6600 is supposed to drop by $43 in lot sizes....don't know what it'll do individually. Time will tell, I suppose.
I do own a Q6600 myself.....lot# L745....
I am somewhat of a very lazy OC'er......the cpu is runing on an Asus X38 board, a Maximus Formula.
Leaving all setting at auto except for forcing my PCI-e speed to run at 100MHz, cpu voltage set to 1.35V, NB voltage at 1.5V, and RAM voltage at 2.0V, I've been able to run my cpu at 3.6GHz. That's stable under hour after hour of OCCT.
I have had it boot at 3.9GHz, 1.51V, all other setting again left in auto, but fails OCCT after just a couple of minutes.
Not really sure which or what setting to try tweaking, but 3.6 @ 1.35V seems to me to be a decent OC. My temps, under watercooling, really never seem to hit more than 52C on the "hotter" cores of the two pairs of cores. (The other "core" never gets near 50C running OCCT at 3.6GHz.)
Everest gives my VID at 1.238V.
Guess I'll just let sleeping dogs lie and be very satisfied that it does what it does.
I would like to ask you something. My previous Q6600 had a vid of 1.325. Used to run 8x425@1.41v while the absolut minimun Vcore to boot in Vistax64 was 1.34375 in Bios, 1.328 in Cpu-z. After some search to find a new chip i found a friend with absolut no knowledge of pc's and o/c ofc and i traded my old chip for this new one. When i asked him to check his VID before trading he read CoreTemp and reported 1.1625.:up:
So long story short we made the trade, i installed my old cpu in his mobo and his cpu in mine.After i logged in Vista my core temp/everest report a vid of 1.3 (not 1.325 from old cpu, or 1.1625 from the new one), while his core temp report the old vid of 1.1625. Is this normal?Is this bug?If i reinstall Vista will this fix this error?
Now i test my new Q6600 8x425@1.304 in cpu and passed 30 min of prime;)
Don't give up on the chip just yet.... Mine was the same, in the same board, untill I give like 1.8+ volts to the CPU PLL, try that, then see how it does. also have 1.4v VTT and 1.5v on the 1.2v HT. Also I have 1.64v set in bios for NB... try those and see how it does. Only using +30mv on the GTL ref's
Haven't tried the chip on another board, but the 780i has a max NB volt setting of 1.55 I think, and I've used that. The VTT (FSB on 780i) is at 1.4v, and I have increased the HT volts too. I'm a little leery of pushing the vcore to 1.8+v :horse: without phase or LN2 cooling; I am watercooling the cpu but it seems as though I should cut my losses so to speak and return it.
I'm curious though, what kind of overclock and what temps did you get from 1.8+ cpu volts?
Oh wait a minute, 1.8v PLL, not vcore? (Sorry, I misread your post- my bad). I don't even know if the 780i has a CPU PLL setting in the bios.
I thought that at least pertaining to 45nm chips, upping the CPU PLL caused rapid cpu degradation. Are 65nm chips more robust in this respect?
He isn't talking about Vcore, he refers to PLL voltage. However, common sense suggests to avoid PLL voltages higher than 1.7V for 24:7 use on 65nm CPUs. Just as an indication (and don't know about Penryns).
1.8V Vcore on a 65nm CPU will result in a heat production similar to what you can find in a nuclear power plant core, so adequate cooling plus fire estinguishers and good kevlar clothes are required to be adopted by the user. :yepp:
Giacomo
Agh Decisions!
I will be using a Thermalright IFX-14 with a 120*38mm fan, I notice a lot of people with the Q6600 are using water, Will I be able to get 3.6ghz from a Q6600 on air if I get a good stepping?
Thanks, Im just not sure what batch I will get, I will just have to take a gamble and hope that I get a good one :(
btw the IFX-14 is better than the TRUE and it fits a 38mm fan which is cool :)
http://www.petrastech.com/reviews/ai...inkResults.jpg
in reality there is little difference between the heatsinks i guess, but i prefer the tests done by Vapor here at XS. not enough to earn a debate anyway :D
Yeah seen as the TRUE has almost identical performance and its smaller and cheaper I might end up going for it...
Im looking at the MSI P7N SLI Platinum and it has a strange chipset cooler that may interfere with the IFX-14...
i have the same batch as you, bought it for the same price from fry's too lol.
i can get it prime stable for days at 3.2ghz with a 1.45 vcore, but i get random restarts when i loop 3dmark06 still or play games, and that goes away when im at 3ghz@ 1.35v ( i like to stick to even numbers lol). anyone know what can possibly be causing that?
Same here:
I can do 3GHz with 1.28v, 3.2GHz with 1.33v and 3.4GHz with 1.464v but even 3.41GHz or 3.42GHz are completely 100% no go. I've tried better cooling, more voltage, loose ram timings, different FSB/Ram straps, it all makes no difference. Even 3.4GHz reboots randomly but can still Prime for 12hours solid. Odd chips, real odd and real crappy... :eek: :mad:Quote:
L801A876
VID 1.325v
Pack Date: 22/02/08
2L75072
7A1750
I didn't get the same good price you guys did though, mine would have equalled about $280... :down:
Yes it has PLL in bios, and it also has a WAY WAY higher than 1.55v in NB, Like I previously stated, as I am running a quad on a 780i, you need lots of PLL and lots of NB, and even a high 1.2vHT, otherwise it's most likely to be the board and not the CPU thats holding you back.
If you do as I stated above it will work.. if your not game to try that.. then It wont.... Mine is prime stable with no crashing and no temperature issues. I've never been lucky in hardware before, so I doubt it's got anything to do with luck, just patients and giving it a go.
Hey TheOmen,
I just now noticed in your sig that you are using the Striker- I've got the EVGA 780i. On the EVGA, the highest NB (SPP) voltage is 1.55v. And there is no bios setting for CPU PLL voltage. Definitely not the greatest quad overclocking board, I know, but will soon be moving things around and putting the quad in a P35 board.
At any rate, I returned my L804 batch q6600 and went to the local fry's to see what they had in stock. The only non L804 q6600 they had was one with the older light blue gray box from batch number L743A, so I bought it. The VID is 1.300. In my 780i this one will run 3.6ghz (2hrs OCCT mix stable) with a vcore of 1.49 (bios)/1.43 (real). Haven't pushed it more yet, but max temps under full OCCT load were 55degC.
What is the actual ceiling voltage (vcore) that most people feel comfortable with on these q6600's for 24/7 operation?
Here is my toss into the hat
Currently running @ 9 x 389 = 3500mhz on 1.35vcore droop down to 1.31 under full load Orthos/Prime Stable
Will push it further... am trying to decide if a better waterblock would get those load temps below even cooler.
I just over-clocked to 3.5 on the default intel cpu fan.
My VID is 1.1625. I was running at 1.35V to get to 3.5.
(That is what the ASUS Rampage Formula CPU Upgrade [crazy setting] set it to. I will tweak later)
At idle I was running at 40 degrees celsius.
I am so glad I returned that L7 and took the gamble.
Yup. I did.
:(
I shouldn't have gotten excited.
It is 1.300v
Took it back to Microcenter.
Fry's has the following batch's:
L745A999
L737B743
L737A688
and possibly others.
Which should I get tomorrow morning?
3.6ghz now temps below are at idle.. I think I need to adjust my WB because 2 of the cores seem to be a tad bit hotter than the other two.
Hawkeye, what batch?
BTW, My cores do that.
2 Q6600's here 1(this one) does 3.2GHz on 1.22Vcore and the other (in my workstation at work) does 3.29GHz on 1.23Vcore. :D
any ideas on what specific factor could cause random restarts?
i couldnt isolate what was causing it, i maxed out nb and vtt voltages, random restarts, left them at stock, still random restarts. idk, maybe it will go away, i wont be home to test out new settings for 2 weeks. goes away at 3ghz, but is prime stable at frequencies much higher.
That is normal. Theyre pretty close really.
Thought I would show temps with my rig under a few hours of Prime.
http://img294.imageshack.us/img294/3...pimage2xo6.jpg
I am sitting in the Fry's cafe. I had the guy in the cage write down the batch #'s of the ones they have.
I found this one: L741A963. Someone stated it had a VID of 1.2125. (http://www.xtremesystems.org/forums/...7&postcount=16)
I'm thinking I should get that one, and not risk getting a high 737B, since they are reported to be 1.35v.
What does everyone think?
I just plugged in the L741A963 and CoreTemp tells me it is 1.2000v.
Is that right?
http://iphone.exploit.org/cpuinfo.jpg
Giacomo: Yes, I did.
Why do you think it is different than what the other user posted. Shouldn't it be 1.21? I am using the same batch.
Does this have anything to do with droop?
Such a low VID is a very good thing to overclocking the beast. Mine is 1.3V, as you can read in my signature I need to pump a very high 1.55V to reach 3.78GHz. Maybe yours will manage to reach that speed with 1.45V or so (if you have proper cooling to run it).
Vdroop is an another thing, it's the voltage decrease when the CPU is under load (difference between idle Vcore and load Vcore).
Giacomo
You have a VID=1.200v, every Batch# is different, that why folks should show the whole Batch# and not just the week as in L741XXXX. You can get variation of the VID within week and certainly as you have noticed you can get variation within the same Batch#. In fact I have seen variation from 1.200v-1.2500v within the same Batch#, so as the saying goes it is still a crapshoot still applies.
1.200v just seemed so surreal to me. I didn't anticipate going from 1.300v to 1.200v with a single return. Especially after I found someone stating 1.21.
Not knowing the specifics of my board (Rampage), and CoreTemp itself (especially after my silly stepping confusion), the even values seemed strange.
Notice, I went from 1.300 on the last one to 1.200v. Both even numbers. That still makes me suspicious.
Is there another way to tell VID without using CoreTemp?
i have my q running at 3.2 (400x8) at 1.23 real v core, 1.27 in bios. I think thats a bit low compared to what some other report as stable for 3.2ghz. i dont really feel like primeing the machine for hours at a time cause the only time i can use the pc is at night, id rather play games when i can. dont wanna leave it on all day cause its a waste of electricity. the games run fine without crashing. does anybody else OC their cpu and not test it?? as long as its working, its working right?
Here is my 1.2v Vid Quad L744B144 , still testing. need to find a board that can take this baby to 4.0ghz.
http://img408.imageshack.us/img408/5...0732wo4.th.jpg
Jor3lBR, hehe... I have been dreaming of this for a while. Now I can have some real fun.
I think the Fry's in Houston (south) has 4 more in stock if anyone wants a good batch.
So, I was able to overclock to 3.2 with the stock heatsink and fan. I have a WC setup that I will be applying once my new motherboard tray for my case shows up.
For now, here is an updated image:
http://iphone.exploit.org/cpuinfo31.jpg
http://valid.x86-secret.com/show_oc.php?id=351084
My q6600 1.2v in air with Thermalright Ultra 120 EXtreme + SilverStone FM121, 100% stable!
http://i247.photobucket.com/albums/g...able32-12v.jpg
My IDLE temps:
http://i247.photobucket.com/albums/g...u/Tempidle.jpg
Regards!
I'm running my northbridge @ 1.5v and my vtt @1.4. I've seen many northbridges on here as high as 1.575v How high can I go with my northbridge? I have MSI heatpipes on my P35 so the cooling is very good.
I've also added two Thermaltake Thunderblade 120mm fans to my Thermaltake Soprano case which has reduced my 8800gt idle and load times by 4C and reduced my load on my CPU by 4C as well. These fans are pushing 78 CFM and producing 21db.
If I crank up my northbridge more than 1.5v I can get more than 3.6Ghz
My Q6600 idles at 39c/37c/35c/40c and the highest temps recorded under hours of gaming load 67c/63c/59c/62c
I thought my vid was 1.225v but I can't run coretemp because of Vista 64bit operating system. I found a post stating the same batch as mine has a vid of 1.1625v
http://www.ocxtreme.org/forumenus/sh...ad.php?p=18766
Back to my first question, what's the highest northbridge setting above 1.5v on heatpipe cooling? I can get a couple hundred more mhz with a higher northbridge.
Later versions of CoreTemp work fine on Vista x64. I remember having problems installing an earlier version of CoreTemp, but am currently using 0.97.1 without problems on Vista x64.
As to the max 'safe' NB voltage on stock cooling, it all depends on how effective the cooling solution is. I personally wouldn't be worried about using 1.5v on a P35 chipset, although I would monitor the temps. If the temps do get a bit high, you could always either add a fan to the NB area or consider after-market cooling solutions.
OMG the Q6700 is only 192 euro now since the Intel Price Drop!!!!
10x multi Quad Core for < 200 euro is incredible and the Q6600 is only 158 euro now too!
Do the Q6700s clock a bit better? 4ghz Quad on air? :o
3.6-3.8ghz?
Yeah. I've got it at 3.6 right now on 1.36v.
It can do 3.7 on 1.42v
I haven't gone too much higher than that because the dividers get screwy on my RAM and I end up losing bandwidth.
think the Q6700 is worth the ~ 35 euro premium?
I'm going for one too.
Q6700 that is.
Guys, what are your northbridge voltages set at? I'm at 1.5v and wondering if I can push it up to 1.55v-1.6v
[QUOTE=extremis;2941667]Jor3lBR, hehe... I have been dreaming of this for a while. Now I can have some real fun.
I think the Fry's in Houston (south) has 4 more in stock if anyone wants a good batch.
So, I was able to overclock to 3.2 with the stock heatsink and fan. I have a WC setup that I will be applying once my new motherboard tray for my case shows up.
Extremis,
I am close to Houston. Where is the south Houston Frys located. I know the one on I-45 north ?
Guys, what are your northbridge voltages set at? I'm at 1.5v and wondering if I can push it up to 1.55v-1.6v[/QUOTE]
FWIW, I am at 1.55v on NB and run 63C to 65C NB temps on OCCT RAM or Prime 95 Blend at ambient of 22C-23C. No fans on NB just stock cooling. ASUS Blitz formula
id love to get my hands on a good one.. we have no local stores that sell these and id have to order online and take a crapshoot as to what i would get.. not sure i want to do that
Thanks for the feedback Gen & Khamo. I was able to bump my Vcore down from 1.45v to 1.4375v in the bios. With Vdroop CPU-Z shows 1.42v with drops downt to 1.38v. I think I have my northbridge set at 1.525v in my bios. I upped my VTT or FSB voltage to 1.425v. It passed Super Pi 32M and 3DMark06 without any problems. I do not waste much time with Prime95 (overkill)anymore. I think 32M of Pi is plenty stable.
Anybody have any limits on what the FSB voltage should top out at? My MSI board has slightly less elaborate heatpipe cooling than the Platinum P35 but I think the results are about equal minus a few extras like firewire and SPDIF.
Can the Q6600's with 1.2VID's go to 4Ghz on air?
Could also be that the Q6600 was way more popular due to the better price... in those days... If you get a good batch it will clock in the same region as the q6600... but like I mentioned in other threads aswell peeps think it clock better as it has a higher multi... on air or water that's for sure a no no :shakes:
I wish I could get my Q6600 to run stable @ 3.8Ghz or higher... :(
i made a different thread but im thinking this may be the more appropriate place to ask this to get more responses.. does anyone know anything about these batch numbers?? thanks in advance
L738A968
L745B169
L743B300
L804B261
Right, NBF. The NB volts are dependent on memory size/speed, DIMM config, and FSB. I am running 1gbX4 that needs > 2gbX2>1 gbX2. And yes we may be running higher volts then the minium required. ( My FSB 1.44, NB 1.55 vDIMM 1.98) Just the hassle of testing and retesting for as low as possible. Depends howmuch playtime you have. If the temps are reasonable and OC is rock stable I tend to not mess with it.
I would go for option two... low Vid doesn't necesarrily reflect in better Mhz numbers... also weird but most low vids have high temps... a good batch does high speeds at low voltages and if possible cool temps too :)
Well 780i did 450 FSB too with my 45nm duals/quads , didn't test the the Q6600 on it... but indeed you can get easier to eg 3.6ghz with a 10 multi but bandwith and co takes a blow... better go 400FSB with 9 multi then or 425 with 9 over 380 x 10...
Did an easy 450 FSB with my Q6600 :) very happy about that.
Did notice the big increase in bandwidth going from 9x400 to 8x450.
However I have a big problem, running same settings (except using a quad now) on my 780i as my 680i I used to get 45ns latency with these ram settings, but on the 780i im getting a whoping 70ns, even though my timings are same as other board. Even my read/write and copy bandwidths are way out.
Very annoying. Especially when all manual timings.
I had some free time today morning and did some testing to see if my Q6600 can do 3.8Ghz. While at 3.6@1.39v is prime stable, when i prime it at 9x425 (3.825) even at 1.48v (1.5v in bios) i get a bsod and an immidiate restart. Is this normal? I didnt try it any higher cause i dont know if more than 1.5v real is safe for 24/7 use.