Q6600 GO batch L738B not good Vid 1.325V

[road-runner]

I have one that is 1.2375 VID, it will run OCCT at 4Ghz and I can bench at 4.1Ghz. The other two are 1.325 VID, and I cant get 3.6 stable with those.

[Leeghoofd]

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

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#.

I think the only way to find out the Vid is to pop it in a mobo, I don't think they are batch or week related, it's a nice collection you made there but I think it's too theoretical mate, it will not guarantee it's the better clocker... many of the low Vids scale well ( volt/mhz ) but some are really weird and just don't behave as the previous one... and I had numerous E63/64/66/6850 and Q6600 already, it's really mostly hit and miss...

But I can understand you have to make a quick judgement when you buy ya CPU at the shop, I only watch A or B a( as my shop never has a wide collection available. Till now I prefer A over B as they run mostly with lesser volts (do'nt shoot me if I inverse it) at the same clock speed though B's used to run cooler... but those were in the E66 days, maybe stuff has changed with the SLACR's...

I'll have a look into ya great work you already did for us... will take some notes but like you claimed not all overclocks are based on the same criteria : user, hardware used, ....

[Leeghoofd]

The motherboard is a p5n32 e sli, it must be holding it back.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.

Definetaly the mobo holding ya back mate, like with the striker there are numerous FSB holes and it needs some good tweaking to get it stable most users run it succesfully with 425FSB (x8) but more is a hit and miss... get a good Intel chipset and you will be flying for sure

[WizardofOz]

I think the only way to find out the Vid is to pop it in a mobo, I don't think they are batch or week related, it's a nice collection you made there but I think it's too theoretical mate, it will not guarantee it's the better clocker... many of the low Vids scale well ( volt/mhz ) but some are really weird and just don't behave as the previous one... and I had numerous E63/64/66/6850 and Q6600 already, it's really mostly hit and miss...

But I can understand you have to make a quick judgement when you buy ya CPU at the shop, I only watch A or B a( as my shop never has a wide collection available. Till now I prefer A over B as they run mostly with lesser volts (do'nt shoot me if I inverse it) at the same clock speed though B's used to run cooler... but those were in the E66 days, maybe stuff has changed with the SLACR's...

I'll have a look into ya great work you already did for us... will take some notes but like you claimed not all overclocks are based on the same criteria : user, hardware used, ....

Thats funny it just shows that everyone has different methods for choosing their favorite processors you like the 'A' series I like the 'B' when it comes to E6600.
Initially I thought I would do the same with the Q6600, but I have found that the early 'B' as in L721B, L725B and L730B were not up to my standard for 3.6GHz. The L737B however are very good and so are some of the L737A. So here is what I have found so far the data is patchy since folks do not post everything I wish to collect.

This is for Week 37 for Q6600, I will include Batch# that known to be in existence and may have no data for it.

Batch# VID Speed VCore Comment

L737B002 Saw on Ebay auction
L737B011 1.3250v
L737B026 1.2250v 3.82GHz 1.408v Mine, but run 24/7 on 3.6GHz
at 1.30v
L737B034 1.2250v Ebay
L737B055 Ebay
L737B062 1.2000v 1.35v 3.65GHz
L737B064 1.2125v 1.392v 3.8GHz
L737B075 1.2000v 1.272v 3.6GHz
L737B080 1.2250v Ebay
L737B134 1.2000v 1.28v 3.6GHz
L737B162 1.2000v 1.375v 3.8GHz
L737B186 1.2125v 1.501v 4.01GHz
L737B186 1.2125v 1.304v 3.6GHz
L737B209 1.2250v 1.27v 3.6GHz
L737B235 1.32v 3.6GHz
L737B255 1.2500v 1.296v 3.4GHz
L737B264 1.2250v
L737B269 1.2000v 1.275v 3.2GHz
L737B293 1.3250v
L737B324 1.3250v
L737B325 Ebay Italy
L737B346 1.2250v
L737B384 1.2125v 1.504v 3.95GHz
L737B385 1.275v 2.95GHz
L737B400 French Website
L737B428 Hungary Website
L737B467 1.35v 3.3GHz
L737B543 1.2750v
L737B560
L737B687 1.3250v



L737A006 1.40v 3.7GHz
L737A051 1.3250v
L737A651
L737A672 1.40v 3.6GHz
L737A669
L737A679 1.31250v 1.375v 3.6GHz
L737A716 1.2500v 1.336v 3.6GHz
L737A721 1.36v 3.24GHz
L737A802 Ebay Germany
L737A803 1.3250v 1.40v 3.6GHz
L737A805 Ebay
L737A806 1.2000v 1.264v 3.6Ghz
L737A820 Ebay
L737A821 1.3125v 1.44v 2.76GHz
L737A822
L737A823 1.2750v 1.40v 3.6GHz
L737A823 1.2750v 1,372v 3.42GHz
L737A832 1.2000v
L737A967 Ebay


The spacing is a problem, so look carefully at the list and the caveat is that this is only as good as what folks post on the Web, you can choose to trust or not trust this information. Much of the information came from the extreme forum so you can search around and find the owners and ask them politely for some more info, before you make your purchasing decision.
I will try to keep going with the list ie Week 38, 39, 40 as the data becomes available.

[WiTcHkInG]

Are there any more results with these L738B chips?

One on ebay thats tempting.

Here if anyones interested

[xanvincent]

Just got my Q6600 G0 in.
FPO/Batch: L738B233
Wafer: 0A0119
Not anywhere close to done with tweaking it.

Stock

2.9

3.0

[dogsx2]

Are there any more results with these L738B chips?

One on ebay thats tempting.

Here if anyones interested

The VID for this cpu is a lowly 1.25v

How does he know this or is it used?

[Demo]

My Q6600 G0 has a VID of 1.2750 and requires no less than 1.315 in bios to be able to boot and function stable at 400fsb ( *6 multi ) and would require a bios setting of 1.51v to get to 3.6Ghz ( only ran prime95 for 30mins ) i think its a bad overclocker for asking that much of a volts at 3.6Ghz

[linflas]

1.325 aint the end of the world, mine does just fine, been crunching 24/7 @ 100% cpu load on these settings for a long while.

[FrogBite]

Do all of you have your northbridge voltage and FSB termination voltage set to auto in your BIOS?

[Leeghoofd]

Do all of you have your northbridge voltage and FSB termination voltage set to auto in your BIOS?

I can tell you 99.9% not... which mobo do you own mate ? most peeps set NB and co to manual settings as we had soem bad overvoltage history in the past with some boards (my commando heavily overvolted the NB while it was far from necesarry)

[KTE]

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.

You're correct in a way.

Volate ID sets the reference voltage across the power land VCC which supplies the core voltage to the processors (measured across VCC_SENSE and VSS_SENSE). All this controls is the performance profile of the processor, so a lower working VID will have a lower TDP than a higher. Amps required (Icc) may also be lower with lower VID CPU's, so they do run cooler/lower power/lower TDP than one with a higher VID at the same frequency/amps per core/bus speed. That's why they're better. 0.85VID is the lowest and 1.6VID is the highest possible.

But they can run cool with a low VID at stock and still be bad oc'ers and so people tend to look at Batch/Wafer to "estimate" the oc potential. The two combined help potential customers.

[ZeroOne]

Just chiming in...

Q6600, L737A832,
Vid: 1.3250v
Currently @ 3.6Ghz (450x8)
vcore: 1.44375v set, 1.445v idle, 1.446 load, measured with multi-meter
(vdroop mod done on striker)

Seems stable and the temps never climb past 52C on the hottest core, 20C ambient, on water.

Pushing for more once this 680i proves to be stable over a week or so. Need a good fall-back point.

[lazy]

ZeroOne do you have a screenie of p95? showin its stable?

[fordf250]

You're correct in a way.

Volate ID sets the reference voltage across the power land VCC which supplies the core voltage to the processors (measured across VCC_SENSE and VSS_SENSE). All this controls is the performance profile of the processor, so a lower working VID will have a lower TDP than a higher. Amps required (Icc) may also be lower with lower VID CPU's, so they do run cooler/lower power/lower TDP than one with a higher VID at the same frequency/amps per core/bus speed. That's why they're better. 0.85VID is the lowest and 1.6VID is the highest possible.

But they can run cool with a low VID at stock and still be bad oc'ers and so people tend to look at Batch/Wafer to "estimate" the oc potential. The two combined help potential customers.

How do they know what vid to set.

[fordf250]

1.325 aint the end of the world, mine does just fine, been crunching 24/7 @ 100% cpu load on these settings for a long while.

Very nice.

My cpu also runs 10C diff from core 0 to core3,full load. Do you think its just the contact inside? and if I reheat the ihs fast will it resolder with better contact.

[CyberDruid]

Interesting info on the latest batch of G0...glad I got some good ones early on...

[ZeroOne]

ZeroOne do you have a screenie of p95? showin its stable?

Not fine tuned yet, but here is a quick 3hr run. 32M was a little slow but it was running at the same time as prime.

[breakfromyou]

I just picked up an L737B046

I'll edit/post with results in a couple hours.

Too bad the Hyper 212 is too hard to get off. I'd love to throw this Q6600 in here, but the gigabyte DS3R is already here...begging for it.

EDIT: This thing sucks. I don't want it anymore. I bet it's the board, but jesus. itll do 3.2 at 1.1v, but any higher and you need 1.3v+...it clocks like an AMD. Doesn't respond to voltage or scale whatsoever.

Give me a bit longer. I bet the vdroop is killing this thing.

[Andi64]

Hi!
My brand new Q6600:
L737A832 VID 1.3250

3.6Ghz @ 1.45V @ Prime95 = Instant lock-up.

This thing SUCKS.

[WrigleyVillain]

FYI I have an OEM and it's VID is 1.265. Can do 3.6 but it takes about 1.4v which gets a little hot for comfort while crunching 24/7. Zerotherm Nirvana 120, ambient temp 72F.

[psyxeon]

yo! I´ve been running 3.4 for 6 month now. My VID is 1.352

3.4ghz - 8 x 425
Vcore
1.4625v in bios
1.408v idle
1.36v load
It is prime stable for 30 minutes.

Now I wanted to push it to 3.6

At 3.6ghz - 9 x 400
Vcore
1.55v in bios
idle 1.48-1.51v
1.37v load
Prime stable for 1 or 2 minutes

what´s the maximum voltage and temp for 24/7?

[Gen]

1.325 VID may not be the end of the world but, for most, it's much harder to get them to clock with lower voltage. My L804A (1.325 VID) takes 1.48v load for 3500 while my L723A (1.23 VID) takes 1.45v for 3800mhz.

[Akane]

LOL I didn't even remember making a post in this thread. I've been running 3.4Ghz @ 1.575v BIOS since I got the chip as well, the good thing is that no games can take full advantage of the chip yet so I can just leave it as it is. I think I can skip the 9300's and 9450's or whatever that new stuff is called and wait for the gen after that.

[psyxeon]

LOL I didn't even remember making a post in this thread. I've been running 3.4Ghz @ 1.575v BIOS since I got the chip as well, the good thing is that no games can take full advantage of the chip yet so I can just leave it as it is. I think I can skip the 9300's and 9450's or whatever that new stuff is called and wait for the gen after that.

What about idle and load?

I have a huge vdrop