*Official Retail G0 Q6600 Overclocking Thread*

[Demo]

I can get 3ghz on def voltage. But when i go for 3.2ghz and do around 1.4V i cannot get it stable. When i do the auto volt, then it sets to 1.37(5) and its stable. The mobo is GigaByte p35-ds3r. Do i need to add some other voltages other than CPU?

Whats your cooling, try upping the CPU VTT / ICH / MCH

[varblane]

Big Typhoon 120.
Whats the temperature limit, which is safe for 24/7.
Should i add +0.2 for everything, there is (named above).
Havent check the week number. Forgot to check when i changed the cooler

[Crazykooter]

I figured I would post my ocs so far. I think I got one heck of a chip but I am limited by my mobo. Its an L738B024. I am using swiftech GTX extreme water block and my custom water box and rad which isnt all that great.

Here is my 24/7 OCCT stable oc.


This is my best 3dmark06 stable oc. No screenshot just bench results.
http://service.futuremark.com/compare?3dm06=4227644

This is my best Spi run.


Not sure what its gonna take to get more at this point besides better cooling and I really need to lap this cpu. If you look at the coretemps you will see one of my cores is running 10c lower then the other 3.

[andressergio]

Hey guys

Just wanna show you my best 3dmark06...Needed 1,625 vcore bios to make it stable
My max OC no artifacts for 1 hour ATI tool was 630/1605/2006

here it goes...



I am thinkin' on buying the TR HR-03 and doing the voltmod, but i really don't know if it worth it, what do you think ?

Regards
Sergio

[micron929rr]

Anyone have overclock settings for the Q6600 on an Asus Maximus x38 board?

[binormalkilla]

Now since I got water I'm at 3.8 @ 423 FSB 1.477V Vcore (or so).

[Sepander]

L739B250 , VID 1.3000V
SP1M 9x475MHz
vCore 1.8V.

[-.-PhanTom-.-]

I figured I would post my ocs so far. I think I got one heck of a chip but I am limited by my mobo. Its an L738B024. I am using swiftech GTX extreme water block and my custom water box and rad which isnt all that great.

Not sure what its gonna take to get more at this point besides better cooling and I really need to lap this cpu. If you look at the coretemps you will see one of my cores is running 10c lower then the other 3.

I just got a L738B039 - hopefully it will get in the same range as yours
Can't wait to get my new rig together

[JoeBar]

I have a L728A G0 Q6600 with vid 1.2875v and i'm really not impressed with it.


Prime stable @ 3.72ghz with a rather high vcore @ 1.52v. I was hoping more (or at least with less vcore) from a G0 Q6600 cooled by a dedicated wc'ing loop.


Although i can try as many Q6600's i want, i'm going to leave it @ that and wait for early 2008 when mainstream yorkfield arrives.

[CERO]

I just found out my new L737B got a VID of 1.2125, hopes it is a decent clocker, aiming for 425x9 for 24/7 with low volts "if possible lol

[needforspeed]

Hi

I went to my local supplier and he has some L737B045 q6600, I was able to look at the waker codes as well, they all ended in the 200's.

I was hoping to find a low wafer ##, as I wanted to change up my current q6600, to one for lower Voltage , I am running 3789@ 1.56v, 24/7 stable. VID on mine is 3.125 which is high compared to what I see out there..

Question:
I searched for L737B045 and cant find anyone with one to see how they perform..

Do you think its worth trying one, (problem 15% restock if I take it back..)

[sesion]

That's how my quad core runs, just my cooling doesn't do the job right

[CERO]

[QUOTE=needforspeed;2658991]

I was hoping to find a low wafer ##, [QUOTE]


Hey thats new for me, what number shows the wafer on the sticker, is it f.e.
Version: E10342-001?

[CERO]

sorry double post

[cadaveca]

on black strip on cpu pcb is two lines...number closest to pcb edge is serial number...and ergo must tie into wafer number.

However, I'll end this speculation about wafer number right here...there CANNOT be a single wafer number...there are two seperate cores on quad pcb! There is no guarantee that each quad will get wafer from same large slice!!!!

Maybe if you have Intel's "secret decoder ring" that number will tell you which slice, and which wafers from which slice...

[needforspeed]

I was referring to the numbers below the HS,
Picture in thread: http://www.xtremesystems.org/forums/...d.php?t=170318

not sure if its last 3 or 2 numbers to be as close to 000 as possible, but thought i would take a look for the q6600, but found low to mid 200's.

I am in two minds whether to go for the L737B045 but without some others with good results from this batch I am unsure..

[cadaveca]

As i just posted, 3 numbers cannot tell you where die came from...it could tell you maybe ONE die's location on wafer, but not TWO!!! If you have info that says otherwise, please share..I'm sure others here would appreciate it!

[needforspeed]

Thanks..

I guess its just down to luck then , I will keep a look out for any good OCs on a L737B045.

[cadaveca]

I have L737B486...1.325VID...does 3.8ghz @ 1.6v. There is a thread here somewheres that mentions 1.325 VID quads will not do 3.6ghz...mine does more, so even VID won't really tell you that much about cpu.

As far as I am concerned, lower numbers in L737 code have proven more overclockable, and I surmise that this is because L737 is number for a binning process.

So, L737A's are binned first. First start in that session of binning is L737A001. Each group of cpu's that passes that bin test gets that number, and then another batch is started...L737A002. binning is done based on heat, and used VID, I surmise.

L727A001 would be the 0.85v VID cpu's that we do not see in retail. L737A002 might be 0.8525v...but then again, it might just be a second batch from same testing run. I just know that I have never seen L***x*0* cpus...

(Intel sspec rates SLACR cpus as 0.85V – 1.5V VID, as shown here):
http://processorfinder.intel.com/Det...SLACR&OrdCode=

Once the cpu's have been "binned", the ones that failed might get sent to L737B...I do not know what makes L737A different from L737B...nor do I understand what makes L737A001 different from L737A002....this is just a possibility.

As far as serial number, that tidbit comes from Intel documents, so for sure that number is serial number. As such, it would tell Intel what that cpu is "under those clothes", but it won't tell you directly where on wafer cpu came from. There jsut aren't enough numbers there to give such info, for two cores, and which wafer it came from.

[Demo]

Isnt 0.85v its lowest idle voltage when speed step is enabled?

[Akane]

I think you might be onto something, I do have a L737B6xx, and it can't clock for crap, or I'm doing it wrong. 3.4Ghz barely stable at 1.4625v, It just won't clock very well at all, VID 1.325

Very sux to be us.

[CERO]

Oke my L737B I popped in yesterday is doing pretty good, I did run 1.272@ 3.6ghz for 2 and half hour then 1 core got a round error, so I upped a notch to 1.280 it errored after 4 hours. Then I upped up to 1.288 now still running for almost 10 hours small ffts

temps are Okish, for unlapped Cooler and cpu. 50-52c. So I got some headroom, for more.

[CERO]

First day result so far.

[GOZ]

Got a 737A doing 8x450 (3.6) @ 1.40 Under load dam Vdroop

VID 1.300

I going water here soon the IHS seems to be convex I though peeps was seeing concave???

Going to lap it when its H20 time

[road-runner]

Q6600, G0, OEM, ClubIT L740B216 VID 1.325, Testing now....