Q6600 GO batch L738B not good Vid 1.325V

[fordf250]

Just got a new Q6600 go and it runs 38C on core 0 and down to 28C on core 3 at 3G with defualt vcore full load on water with p95 for quads even if I change the hs position.10C diff? Also the VId is 1.325v. Posts at 3.43G at 1.6V but will not boot any higher than 3G. This is prolly a mb problem and will try in dif mb soon.

[GripS]

The outlook is not good for that chip. It's normal to have *some* difference in temps between cores but 10C seems a bit excessive. I'd say the IHS is probably not making good contact with all 4 cores which would be a flaw in manufacturing. Either that or the surface of the IHS is not flat. You might try lapping it.

[Leeghoofd]

1.6Vcore indeed for only 3.4ghz and not even stable seems way excessive to me... I think too it's rather mobo related ( are you referring to ya Asus P5N32 mobo ?) as this at all doesn't seem right... but the mobo ain't gonna cure the core temp difference....

[road-runner]

Just got a new Q6600 go and it runs 38C on core 0 and down to 28C on core 3 at 3G with defualt vcore full load on water with p95 for quads even if I change the hs position.10C diff? Also the VId is 1.325v. Posts at 3.43G at 1.6V but will not boot any higher than 3G. This is prolly a mb problem and will try in dif mb soon.

I have a L738B233 with VID 1.325 on a GA P35 DS4 running at 3.5Ghz on air (stable) it certainly is not as good as my L734B164 that is running 3850 stable 24/7 water...

[Akane]

Recently received my Q6600 G0
FPO/Batch# L737B687.
Running 3465Mhz, 1.6vCore in BIOS.
P5K SE
Bigwater 745, all fans @ 5v
Barely stable, tried 5min OCCT and it seemed ok, core temp 58c on all 4's, about 2c variance.

Can boot on 400x9 (3.6Ghz), can Superpi @ 14.8sec, but not stable at all, suicide post only.

[PCTools]

Crank that CPU up!

[SiGfever]

That does seem like high volts for a "GO". My Q6600 GO runs at 3.61Ghz @ 1.3v, the vid is 1.2125.

[Akane]

Yeap I've got a crap one, for the past 3 CPU's I've purchased, they all turned out to be crap clockers.

I think my motherboard is not able to handle the power draw neither, it's a P5K SE without any cooling on the voltage regulators. And during 100% load on all 4 cores, I can hear a very loud "hissing" sound from ther motherboard.

I've stuck a few heatsinks on it but it didn't improve the situation.

[lazy]

you guys sure have some good G0's there
i got a batch # ive never seen *L747
and even it needs 1.45 for 3.4
and ive tried up to 1.52 for 3.6 but it gets too hot for my tuniq and crashes
prime in 1min

[fordf250]

The motherboard is a p5n32 e sli, it must be holding it back.Running 3150mhz at 1.45V stable, 40C max full load, will not boot 1mhz higher on any vcore.Tried up to 1,7V with 1 stick of ram.This mb will run my e6600 to 4G stable and post to 4.2G over 450fsb but I think my raid goes bad after that as it will not boot.

[cadaveca]

Sounds like your board is having issues supplying enough power to cpu is all. I started at 975x, 965, RD600, P35, and then X38...each clocked my wuad higher in the order listed, from lowest clocks to highest...

[NightRaven]

but anyway guys just wanna say i have a L738A730 that has a vid of 1.16

[purecain]

i build pcs for a living and started testing the GO quads in my own machine and none of the last 6 cpu's have been good clockers. i felt releived to put my own back in afterwards..... i started a thread somewhere about it.... i hope you have better luck next time m8. i'f i were you i would fry(by accident) it and send it back to the shop as faulty for a new one.... the vid was really high on all of them aswell....

[WizardofOz]

but anyway guys just wanna say i have a L738A730 that has a vid of 1.16

Great Going,

That is the lowest VID I have seen for a Q6600, so when you get this going with some results it would be great if you could post them here or on the Official Q6600 thread. My interest is that from the data that I have been collecting so far, the lower the VID the lower the temps at Higher speeds. From this I would expect your Q6600 to run at 3.6GHz on < 1.25v. You should be able to do 4.0GHz on < 1.375v.

So for Folks with a VID of 1.3250v my condolences, there may be the odd 1 or 2 out there that will reach 3.6GHz but you need alot of power. Also from observation, many of the Q6600 with the 1.325v VID may originate from OEM processors.

[Spyrus]

Vid is not the key just look at the bottom of cpu under the hsf.
There there is the wafer code.
For those who believe that have a good cpu the last two digits should
be closest to 00.
Example my cpu has vid 1.2875 but wafer ends to 500.
3.6@1.3 Volt on AIR. Just a thought but you can look into this...

[fordf250]

Thanks

[NightRaven]

Great Going,

That is the lowest VID I have seen for a Q6600, so when you get this going with some results it would be great if you could post them here or on the Official Q6600 thread. My interest is that from the data that I have been collecting so far, the lower the VID the lower the temps at Higher speeds. From this I would expect your Q6600 to run at 3.6GHz on < 1.25v. You should be able to do 4.0GHz on < 1.375v.

So for Folks with a VID of 1.3250v my condolences, there may be the odd 1 or 2 out there that will reach 3.6GHz but you need alot of power. Also from observation, many of the Q6600 with the 1.325v VID may originate from OEM processors.

i will try but unfortuntely this cpu isnt mine anymore and will be leaving me tomorrow. so i will try to do what i can

oh and one weird thing. the moment i raised the fsb by 1mhz. vid changed to 1.2625.

eist and all that has been disabled all along.

[Akane]

I wonder if the walfer code is correct or not.
my code:

2L74036
4A0618

right now I'm running 3294 (366 x 9) @ 1.4375, still not OCCT stable.
Still need a lot of time to play with this chip, pleasing all 4 cores is very difficult.

[Spyrus]

The wafer code must be at 015 as maxed out as far as i know.
Beyond that is just luck.

[lazy]

Great Going,

That is the lowest VID I have seen for a Q6600, so when you get this going with some results it would be great if you could post them here or on the Official Q6600 thread. My interest is that from the data that I have been collecting so far, the lower the VID the lower the temps at Higher speeds. From this I would expect your Q6600 to run at 3.6GHz on < 1.25v. You should be able to do 4.0GHz on < 1.375v.

So for Folks with a VID of 1.3250v my condolences, there may be the odd 1 or 2 out there that will reach 3.6GHz but you need alot of power. Also from observation, many of the Q6600 with the 1.325v VID may originate from OEM processors.

I never knew OEM procs have higher VID
I wish i knew about this sooner or else i wouldve never ordered me an OEM

[Leeghoofd]

Great Going,

That is the lowest VID I have seen for a Q6600, so when you get this going with some results it would be great if you could post them here or on the Official Q6600 thread. My interest is that from the data that I have been collecting so far, the lower the VID the lower the temps at Higher speeds. From this I would expect your Q6600 to run at 3.6GHz on < 1.25v. You should be able to do 4.0GHz on < 1.375v.

So for Folks with a VID of 1.3250v my condolences, there may be the odd 1 or 2 out there that will reach 3.6GHz but you need alot of power. Also from observation, many of the Q6600 with the 1.325v VID may originate from OEM processors.

I think this is theoretical mumbo jumbo as I can totally contradict this with my own findings with some CPU's E6600 and Q6600... I still think the wafer number and the A or B stepping ( or batch or whatever some refer it too ) are more important then VID... I had a few F and G CPu's that were total crap although they got the lowest vid I ever had on an E6600... but went up well till a certain speed and then required massive voltage to get any higher, also some had lower FSB walls then the higher vids... also the 2 Q6600 I own ( I already sold one to be replaced soon) had 2 totally different vids ( 1.2125 and 1.2750 ) both clock up to 3.6Ghz with minor difference in voltage...though temps are totally different , the first one is an A stepping second B and the B still gets hotter ( same finding as I had with other COre2 duo's )...

I think it's a hit and miss with all CPU's some batches ( weeks etc wafers ) perform alike some are totally different...

[Crazykooter]

The L738B's are not all bad. This is what mine does. VID is 1.26



Imageshack seems to be acting up tonight so my screen shot isnt showing. I am running 3840 1.5v in bios. Water cooled 12 hr occt stable. I have been able to run Spi at 4320 mhz @ 1.62 vcore.

[road-runner]

I got another OEM on the way hopefully I will get one more decent chip to make it two out of four...

[WizardofOz]

I think this is theoretical mumbo jumbo as I can totally contradict this with my own findings with some CPU's E6600 and Q6600... I still think the wafer number and the A or B stepping ( or batch or whatever some refer it too ) are more important then VID... I had a few F and G CPu's that were total crap although they got the lowest vid I ever had on an E6600... but went up well till a certain speed and then required massive voltage to get any higher, also some had lower FSB walls then the higher vids... also the 2 Q6600 I own ( I already sold one to be replaced soon) had 2 totally different vids ( 1.2125 and 1.2750 ) both clock up to 3.6Ghz with minor difference in voltage...though temps are totally different , the first one is an A stepping second B and the B still gets hotter ( same finding as I had with other COre2 duo's )...

I think it's a hit and miss with all CPU's some batches ( weeks etc wafers ) perform alike some are totally different...

Many on this forum have posted data about their OC'g efforts. Personally I have collected the data and used it to make my next Q6600 purchasing decision. The data shows that Batch# with low VID require less voltage at 3.6GHz any higher it does nor scale linearly as you have shown with your E6600 and Q6600 examples (this may just be the limit of the C2D design), so
if I was in the market for a new Q6600 and wanted one that would run at 3.6GHz with the least voltage requirements then I would certainly choose a processor with a low VID value.
There are other factors that determine how well a processor will OC, ie
1. The IHS contact with the HSF
2. MB chosen
3. Cooling System
4. Expertise of the OC'r

Here is a small sample from the over 100 user of Q6600 that I have collected.

These are some users with low VIDs (1.2000-1.2125v)

1. Khamo http://www.xtremesystems.org/forums/...d.php?t=170774
2. Biker http://www.xtremesystems.org/forums/...d.php?t=170774
3. Jammin http://www.xtremesystems.org/forums/...d.php?t=170774
4. Bei Fei http://www.xtremesystems.org/forums/...d.php?t=170774
5. Devious http://www.xtremesystems.org/forums/...d.php?t=170774

Here are some with High VIDs (1.3000v+)

1. Gforce100 http://www.xtremesystems.org/forums/...d.php?t=170774
2. T3RM1 http://www.xtremesystems.org/forums/...d.php?t=170774
3. Akane http://www.xtremesystems.org/forums/...d.php?t=170774
4. Darkstormz http://www.xtremesystems.org/forums/...d.php?t=170774
5. Roadrunner http://www.xtremesystems.org/forums/...d.php?t=170774


As you say finding a good processor is a hit or miss and I agree, but you want to still improve your odds of finding that great OC'g processor and I am using VID as a criteria, others like yourself may choose the 'wafer number' (which I do not understand and never heard of until it was mentioned here) and the Batch#.
For me I need to know the Batch# and VID to make the decision, you cannot make the purchase decision on VID alone, because you do not know the VID value until you run CoreTemp. But with the Batch# which you can see on the side of the box or as the last line stamped on the IHS at your local Retail Store or ask when shopping online, if you know the VID value for that Batch# then that is a valuable piece of information.

[victor_c26]

Is VID the Maximum voltage that is set at full load?

Because mine goes as high as 1.24v with OCCT running.

EDIT: Never mind, I ran Core Temp and the VID is 1.28. So I guess this Q6600 won't be as overclockeable as others out there?