Got a little something to play ! (E6750)

[KiD0M4N]

Hi all,

I was RAM shopping in Comp Shop and saw a nice little E6750 on the shelf!

It was a 3743B076 (and according to hipro5 rating, this chip had a "00" rating... (last 2 digits of the batch number printed on bottom mid part of the CPU.)

Well here goes:

http://forums.erodov.com/imagehosting/thum_1477fe6777cb72.png (http://forums.erodov.com/vbimghost.php?do=displayimg&imgid=1989)

My second boot with the CPU.

Lets look at the CoreTemp screen.

The VID is quite high (at 1.35V)
However, with 1.325V set (and it dropping to 1.264V during load) this was SuperPrime 192m and Prime95 1hr stable at 400 x 8.

The idle temps are in the screen.... the loaded temps were 55-60C with Prime 95.

Is that a tad too high? Well this is the first mount with the stock cooler. I will go check if the contact is well enough and the flatness of the IHS.

Will go to see how much it can at 1.325V set in bios.

Regards,
Karan

PS: Any ideas on the FSB limits with a P5N-E SLI and a E6750.

[KiD0M4N]

Another update on the CPU.

Before going to sleep last night, I just bumped the FSB by another 15 and kept the same voltage set in BIOS (1.325V.)

Today, when I woke up, I was greeted by this:

http://forums.erodov.com/imagehosting/thum_1478088fa74739.png (http://forums.erodov.com/vbimghost.php?do=displayimg&imgid=2002)

Yes the temps have increased somewhat... but 415x8 (~ 3320Mhz) with 1.26V loaded isn't shabby. I haven't tried lower voltages... just 1.325V to start with because I always test out chips like that.

At idle:

http://forums.erodov.com/imagehosting/thum_14780894a94dea.png (http://forums.erodov.com/vbimghost.php?do=displayimg&imgid=2003)

Around 50W (approx) being used by the CPU (and other loaded components during Orthos). Thats a pretty good sign :P :)

[HeadOn]

You only sleep for like 6 hours? Gah, wish I could do that. I'm averaging like 10 hours during winter break.

[jas420221]

3.2Ghz is nothing. Im sitting at 3.8Ghz, 1.45v. :)

Congrats on the great chip, but you have a lot more room to go!

[LennyRhys]

3.2Ghz is nothing. Im sitting at 3.8Ghz, 1.45v.

3.8GHz is nothing. I'm sitting at 4GHz, 1.56v. :p: :D

In all seriousness, my chip can do great overclocks but there is no real benefit in running at 4GHz 24/7 so I use 3.6GHz with 1.375v which is Orthos stable and gives me very low load temps.

Sounds like the E6750 in this thread is doing well - 3.3GHz at a nice low voltage. :up:

[mad_skills]

Seems like a nice chip. Good job. Try and see what is the lowest voltage you need for 3.6GHz 24/7 stability.

[KiD0M4N]

Seems like a nice chip. Good job. Try and see what is the lowest voltage you need for 3.6GHz 24/7 stability.

But I always thought that a lower VID meant a good chip. My chip has a VID of 1.35V. So that definitely tell you something.

Since 415x8 was completely stable, currently I pushed it up to 425x8 at the exact same Vcore. Lets see how that fares... :) Mostly I will need a little more Vcore to get this stable.

[mad_skills]

Each E6750 has a VID of 1.35000V.;)

[KiD0M4N]

Each E6750 has a VID of 1.35000V.;)

Oops, didnt know that... so its possible my chip is good :)

PS: Actually a little search showed me E6750 with lower VIDs (http://www.xtremesystems.org/forums/showpost.php?p=2433307&postcount=556)

Just tested 423 x 8 at the same exact Vcore and Orthos was stable again.

Do you think 435 x 8 would be stable at the same Vcore?

[jas420221]

Oops, didnt know that... so its possible my chip is good :)

Just tested 423 x 8 at the same exact Vcore and Orthos was stable again.

Do you think 435 x 8 would be stable at the same Vcore?Every chip is different. Just b/c mine made it there, doesnt mean yours will, and vice versa. But you should be able to hit that. I didnt need to bump up my vcore until 3.6GHz. :)

PS- Where is this Hipro5 rating of which you speak?

[happychappy]

PS- Where is this Hipro5 rating of which you speak?

It's the numbers printer on the black bit on the bottem of a cpu, the closer the 2 numbers are to 0 the better, according to hipro5. It's because of where they're cut from the wafer IIRC

[KiD0M4N]

Every chip is different. Just b/c mine made it there, doesnt mean yours will, and vice versa. But you should be able to hit that. I didnt need to bump up my vcore until 3.6GHz. :)

PS- Where is this Hipro5 rating of which you speak?

According to Hipro5 (I read in a thread) the last 2 digits of the code written on the little black area in the bottom of the CPU indicates the closeness to the center of the wafer.

Mine was a "00"

So hoping for a good chip.

Did you do 3.6G with the stock cooler? I am on my stock cooler ATM.

[mad_skills]

@KiD0M4N Most E6750 have VID of 1.35000V, just fire up CoreTemp and it will show you the number you need.
You've got a nice cpu no doubt there, as far as they go each one made in October and later are good. The ones before are no such good overclockers. Mine is from those weeks and does 3.6GHz @1.37500V and 3.5GHz @ def. voltages and i've seen the earlier ones need 1.5V for 3.6GHz. :D
So your cpu is good, just get it some proper cooling.:up:

[BTK]

well my E6750 is from August 07

http://img260.imageshack.us/img260/3331/orthosnj7.jpg

it needs 1.440V to be stable on 3.6 vs 1.392 to be stable on 3.5 but the tuniq is so good with volts its only 1C difference in load temp

my chip likes high fsb i topped out around 575 mhz fsb, its just needs voltage to be stable, i like my chip alot

but yeah seen some crazy e6750 with 1.275 VID and stuff

IMO ATM e6750 is best bang for your buck, my favorite cpu i ever had even over my sandy athlon 64 4000+ 2.4 GHz 1mb l2 single core that did 2.9-3 GHz 24/7

[JoeBar]

I have a 6750 also and it needs 1.40v to be stable @ 3.6ghz.


Get some proper cooling... :p:

[BTK]

well my E6750 is from August 07

http://img260.imageshack.us/img260/3331/orthosnj7.jpg

it needs 1.440V to be stable on 3.6 vs 1.392 to be stable on 3.5 but the tuniq is so good with volts its only 1C difference in load temp

my chip likes high fsb i topped out around 575 mhz fsb, its just needs voltage to be stable, i like my chip alot

but yeah seen some crazy e6750 with 1.275 VID and stuff

IMO ATM e6750 is best bang for your buck, my favorite cpu i ever had even over my sandy athlon 64 4000+ 2.4 GHz 1mb l2 single core that did 2.9-3 GHz 24/7

I have a 6750 also and it needs 1.40v to be stable @ 3.6ghz.


Get some proper cooling...

my tuniq tower 120 works

[JoeBar]

my tuniq tower 120 works
Sorry for the misunderstanding. Not meant for u but for the thread starter... :)

[Sonicfury]

Well, I guess that "00" thing doesnt mean that much when your VID is 1.2750 :) Batch NR (from the sticker on the box FPO:):L720A465

These are my Clocks / voltages 24/7.

http://i268.photobucket.com/albums/jj26/Sonicfury405/2600mhz124v.jpg?t=1199661059

I know it isnt some 20 hour orthos. Max orthos duration i ran is 8hours but i forgot to take an SS of it as it was 4 in the morning and i couldnt sleep with the machine on (2x 2900xt, enough said...)

[Nugz]

Each E6750 has a VID of 1.35000V.;)

Got this from the egg the other day FPO/Batch#: 3747A250 Pack Date:12/11/07

1.3375V Bios, Cheap ass cooler
http://thermaltakeusa.com/product/cooler/tmg/cl-p0370/cl-p0370.html
http://home.comcast.net/~kindnuguz/3.5.JPG
VID of 1.2875

[BTK]

im jealous of te low VID u gys i have

im happy wit mine anyhow

http://img260.imageshack.us/img260/3331/orthosnj7.jpg

[KiD0M4N]

well my E6750 is from August 07

http://img260.imageshack.us/img260/3331/orthosnj7.jpg

it needs 1.440V to be stable on 3.6 vs 1.392 to be stable on 3.5 but the tuniq is so good with volts its only 1C difference in load temp

my chip likes high fsb i topped out around 575 mhz fsb, its just needs voltage to be stable, i like my chip alot

but yeah seen some crazy e6750 with 1.275 VID and stuff

IMO ATM e6750 is best bang for your buck, my favorite cpu i ever had even over my sandy athlon 64 4000+ 2.4 GHz 1mb l2 single core that did 2.9-3 GHz 24/7

1.44V is definitely decent for 3.6G from any standard considering that we paid like $200 for them :) :)

I have a 6750 also and it needs 1.40v to be stable @ 3.6ghz.


Get some proper cooling... :p:

Actually I was 24x7 at 3.3Ghz with a L630A E6600 which I had. I had a TRUE on it but it refused to be completely stable at 3.6Ghz for some reason hence I sold it off and switched back to the stock cooler. With 1.36V, the E6600 was fully stable at 3.3G on the stock cooler.

I got this CPU because I noticed the "00" and it was a "B" and I was totally bored so needed something to play with :P

Before I decide to get a TRUE (I am also considering a Zalman 9700), I wanna see if I can manage a 3.6Ghz on stock cooling. That will be swell.

Sorry for the misunderstanding. Not meant for u but for the thread starter... :)

No harm done :)

Well, I guess that "00" thing doesnt mean that much when your VID is 1.2750 :) Batch NR (from the sticker on the box FPO:):L720A465

These are my Clocks / voltages 24/7.

<photo snipped>

I know it isnt some 20 hour orthos. Max orthos duration i ran is 8hours but i forgot to take an SS of it as it was 4 in the morning and i couldnt sleep with the machine on (2x 2900xt, enough said...)

That sure is a amazing CHIP you have there mate.

1.25V for 3.6G is fantabulous. I am surprised you have not pushed higher.

Got this from the egg the other day FPO/Batch#: 3747A250 Pack Date:12/11/07

1.3375V Bios, Cheap ass cooler
http://thermaltakeusa.com/product/cooler/tmg/cl-p0370/cl-p0370.html
<snipped>
VID of 1.2875

Thats amazingly low voltage for 3.5G again.


However, I am still wondering how the VID correlates to the OCibility.

My vid = 1.35V

and currently with 1.43V set in bios (vdroop = 0.7V, so effectively 1.36V loaded, I am doing this ATM):

http://forums.erodov.com/imagehosting/thum_14781c4f7cb801.png (http://forums.erodov.com/vbimghost.php?do=displayimg&imgid=2007)

As I type this, it has completed 16minutes.

Sure, its no 1.25V for 3.6G, but 1.36V (maybe lower, the last voltage I tried was 1.344V loaded and Prime95 crashed after like 4 minutes) is not bad.

[KiD0M4N]

A little update:

http://forums.erodov.com/imagehosting/thum_14781d71ef2911.png (http://forums.erodov.com/vbimghost.php?do=displayimg&imgid=2008)

Got what I wanted... 3.6G stable on the stock cooler :) :) At 1.36V to boot :)

[sofarfrome]

I am waiting for my blood iron DFI board. I also have an L720A E6750 chip. I will be putting this under water so I am anxious to see how far it will go. Perhaps I can finally give up my Xeon 3060 L629B which has been a monster OCer.

[Sonicfury]

I can get it to boot @ 4ghz at 1.4v but as soon as I run orthos it will reboot, this keeps on going till 1.55v (at which point i tough that this cant be a cpu issue but more an FSB /NB / mobo issue) It just reboots after 20 secs or earlyer of orthos. Ive upped the NB to 1.6 in the bios which had little effect. Im thinking its the bios i got for the mobo that doesnt do me any good, might downgrade it. ATM im using a thermaltake watercooling (got as a present, TT Armor LCS) ill probably lap it and see if i can get better temps cause at 1.55 they were getting quite high. IF that doesnt work its time to buy some serious WC :)

[Sonicfury]

Specs = sig ;>.

[KiD0M4N]

Guys with P5N-E SLIs, what kind of max FSB have you gotten with that board? Should I just satisfy myself with 3.6G with the stock cooling or is it worth investing in a after market cooler?

[KTE]

According to Hipro5 (I read in a thread) the last 2 digits of the code written on the little black area in the bottom of the CPU indicates the closeness to the center of the wafer.

Mine was a "00".My last one was "00" too and a crap chip compared to many others. :( So I don't know how this applies to everyone. Maybe for some people it has done.

FSB wall at ~478 suicide. Upto 470x8 it ran fine, but after that, it was unstable no matter what the voltage or temps (above zero). It idled ~14C at 3.8GHz 1.45V IIRC (unstable).

However, despite the high VID (1.35V) it still ran pretty cool on just a Zalman 9500. I never saw 50C temps under P95 load (which is heavier than Orthos) but then again, my ambient was very low.

EU prices were higher than US $200 equivalent. IIRC my uncles firm paid 130GBP for them in batch around mid-August, which translates to ~$260 for me around EU since I'm from US.

[RPGWiZaRD]

That it does fine with low volts doesn't neccessary mean it will overclock that far... mine does 420x8 (3.36GHz) at 1.31v (load) but needs 1.5v (load) for 3.75GHz. :(

[Lev]

my e6400 (also an 8 multi) with my p5n-e sli does 3.4 orthos stable but for some reason my usb ports stop working mid game...

anyways - for p5n-e sli definitely replace stock cooling.. it runs hot as hell, i have an enzotech copper cooler with a 40mm fan and it still runs just over 40C at this speed

but now ive decided to just run linked and do 3.2ghz- i recommend running at 3.2ghz and linked on that motherboard with any ddr2 800..

[JoeBar]

Guys with P5N-E SLIs, what kind of max FSB have you gotten with that board? Should I just satisfy myself with 3.6G with the stock cooling or is it worth investing in a after market cooler?
I used a P5N-E SLI in the past, along with a 6420. Max fsb was 470mhz and that was with a active chipset cooler installed.