*Official Retail G0 Q6600 Overclocking Thread*

[crossg]

Hi, this might sound like a dumb question but are the voltages people are reporting the voltage that they set in the bios or the voltage that CPU-z reports? I'm asking because I'm having some pretty severe vdroop on my pk5 deluxe. I get about 0.07 V drop idle and 0.122 V drop under load. I'm still kind of inexperienced at this so I'm still figuring this out.

If your curious at what I'm doing to it now currently I'm stress testing it at 388x9 at 1.45 in the bios (so the Vcore in cpu-z is 1.328)
temps between 52~55C

But I've only been running it Prime95 for about 20 minutes so far.

Also who has used the pencil mod on a P5K deluxe and got good results with it? It seems like lots of people are reporting not needing a vdroop mod, I guess I'm just unlucky.

Most people report both Bios voltage and load/real voltage. That vdroop seems severe. Do you have the Voltage Damper enabled? What version of CPU-Z are you using. The newest vesion 1.41 reports vcore very well, the earlier versions were somewhat unreliable for vcore. You can use AI Suite or PC Probe to give you a good idea of what the voltage is loaded and unloaded.

[moons_shadow]

Most people report both Bios voltage and load/real voltage. That vdroop seems severe. Do you have the Voltage Damper enabled? What version of CPU-Z are you using. The newest vesion 1.41 reports vcore very well, the earlier versions were somewhat unreliable for vcore. You can use AI Suite or PC Probe to give you a good idea of what the voltage is loaded and unloaded.

Yeah, I have vcore 1.41. Although tonight I learned a lesson Auto does not necessarily mean "enabled". I tried the pencil mod it changed my total Vdroop to .092 from .122. I enable the Voltage Damper and it goes from 0.092 to .02 . So now I'm running at 1.425 bios 1.400 Prime95 @ 400x9. I had it going for an hour but the RAM was getting too hot so I lowered the RAM voltage and restarted. Wish me luck. Hopefully by the time I wake up this morning I will have something concrete to post about.

[HermS]

Hey, its been a while...

Picked up a Q6600 G0 L720B058 from Scan the other week and have been running it at 1.38v for 3.5GHz on my Commando so far, but the temps were on the high side:- 72c at full load under a Tuniq Tower 120.

389 x 9 (3.5GHz)
Vcore 1.38v
Idle 39c
Loaded Small FFT's 72c


Anyway, obviously temps were holding me back quite a bit so I Lapped the Q6600 and didn't see any noticeable improvement so I bit the bullet and bought my first watercooling setup:-
D-Tek Fuzion
PA120.3 + Shroud + Nexus Fans
MCW30 Chipset block
1/2" Tygon R3603 tubing
Laing DDC w/ Petra's DDCT-01s Top Combo

With the same ambient I've seen a 16-17c temperature drop when running at the same bios settings and the AS-5 has yet to settle in, I can't believe it made that much of an improvement over the Lapped Tuniq and the whole setup runs much much quieter than the Tuniq... Needless to say I'm pretty impressed!

389 x 9 (3.5GHz)
Vcore 1.38v
Idle 34c
Loaded Small FFT's 56c



I'm going to keep looking for the optimal balance of temps/Mhz so I'll post any interesting results I get when I get them.

Maff

[Robin BP]

Got my Go today 726B 1,23 vid. WC at 3,6Ghz Prime stabel 1,36v. Should be able to get it to 3,8 but that i will test later.

[moons_shadow]

Alright I've finished my first successful overclock attempt. Here are the specs

Batch L723A964
3510 Mhz (390.1 x 9)
BIOS 1.425V Windows 1.416V IDLE 1.400
Idle
42-42-35-40
Load
66-66-58-58

This still seems pretty hot to me, especially since I'm watercooling with a D-Tek Fuzion waterblock and PA 120.2 radiator. It makes me think that I might have improperly mounted the waterblock (I've heard overtightening causes concave bowing) and I'm tempted to lap the processor. But I'd like some feedback first. It might be worth noting that my AS-5 has not cured yet and I know that will give me a drop of a few degrees. Comments?

[Gunlance]

seems like a huge difference between the cores. Have you tried messing witht he 4 mounting screws yet? To tryand even out the mounting pressue and what not.

[CERO]

Hey I got a the following prob I got here a P5K Deluxe ( tried the folllowing BIOS: 0311 and 0411) , and there is no way I can get something with multiplier 9x stable Prime95 25.4 small FFts. My goal was just to run 400x9, however I could get 438x8= 3504mhz with just 1.368vcore during load( and 1.4NB / 1.3FSBv)( 1.41 set in BIOS) and like almost 13 hours stable with small FFts, But 9x389=3501 will reboot again within hours...... And 400x9 is no go, I went upping the BIOS up to 1.4825v( which will be 1.440v during load), from this point I didnt tried higher in order to keep the temperature under 71, and it will all reboot within 3 hours of small FFTs. a friend of mine tested my cpu before ( under water tho), but it was on a P35 GA-DQ6 board, and he could get it stable under around 1.38-1.39 vcore for 400x9......anybody got any clue? I tried upping the NB volts up to 1.55v and the FSBv 1.4v, but it got no sense, since I can get 438x8 stable with just 1.3FSBv and 1.4NBv...

*another note: I got a 70mm ( old amd s939 fan) ontop of the upper mosfet heatsink,normally it would be blazing hot to touch during load, now it doesnt even feels warm...... and a 60mm mounted on the NB.. so there isnt any cooling issue there....

[shaithis]

CPU-Z



Managed to run 12 hours or orthos last night, which means more tweaking to come Cores were ~60deg

Will flesh out with more benchies and max overclock later.

[Robin BP]

An update on my Q6600, its Prime stabel at 3800 1,46v will have to try to lower the Vcore to find out when it gets unstabel.

[RLM]

Alright I've finished my first successful overclock attempt. Here are the specs

Batch L723A964
3510 Mhz (390.1 x 9)
BIOS 1.425V Windows 1.416V IDLE 1.400
Idle
42-42-35-40
Load
66-66-58-58

This still seems pretty hot to me, especially since I'm watercooling with a D-Tek Fuzion waterblock and PA 120.2 radiator. It makes me think that I might have improperly mounted the waterblock (I've heard overtightening causes concave bowing) and I'm tempted to lap the processor. But I'd like some feedback first. It might be worth noting that my AS-5 has not cured yet and I know that will give me a drop of a few degrees. Comments?
Attached Images

If it's the same as mine, a L723B, which has a difference of about 9c between cores, I suspect it's not the mount.

I've spent a great deal of time, trying to remount with a bowed apogee GT, using mx-1 and mx-2 (not at the same time), and it's made very little difference. To add to this I've also tried the chip on a friends setup, with a standard apogee GT, and the same. This is on two different boards.

The fact is my previous q6600, a L724A ran with cores all pretty much even, which I'd say confirms the mount is not really part of the equation.

Will give mine a lapping to see if that imporves the situation, but not expecting miracles.

That aside this L723B is a pretty decent chip, priming at 3.825 ghz with 1.47v.

RLM

[RLM]

On another note.

Previous to having my L723B, I hand another L723B. The vid on the previous one was 1.3 and the performance, was at best average.

I then went on the hunt for a L726A. I'd seen a few about.

So I bought a L726A385. Or at least that's what I thought.

On the side of the box, on the printed label it said L726A365. It's only when a friend pointed something out to me, that I took off the waterblock, cleaned the chip up and on closer inspection found it was in fact another L723B.

The warranty card inside also has two steppings on it, L726A and L723B.

The positive thing is that my current L723B is 1.27vid and performs a lot better.

Don't know if this oddity is limited to here in Thailand, but it's certainly worth inspecting the chip's IHS carefully before purchase.

RLM

[yasoumalaka]

I just received my Q6600 G0. I've been messin around with it and I haven't been able to get it past 2.9Ghz @1.3. I set the the fsb to 1333 x 9 , mem @ 800 , but this was not stable. after uping the voltage to no avail I lowered the multiplier. Still not being able to get into windows I looked through all my options and I can't seem to find out what I need to lower to use this fsb. Can some one please help get me in the right direction. I know nothing about this board and chipset.


UPDATE: I flashed the latest bios and currently quad priming at 3Ghz. NvMonitor at 62C.

UPDATE: The bios setting has the fsb volts @ 1.4v beofre it was 1.2v which one is normal?

[RLM]

Just a 30 min Large FTT run. Not conclusive, but not bad either.

Stepping L723B284 425x9 3.825ghz 1.47v



RLM

[911us]

it seem like stepping with a B better than A stepping

[largon]

Q6600 L724A786
3.6GHz@ 1.396v DMM post-vdroop

IP35 Pro (no vdroop mod, not yet)
d-Tek Fuzion, PA120.3, 3x D12SL-12 @ 5v

Load: 57ºC
Ambient: 26ºC

Quad prime95 v25.4 @ 8h+ small FTT:

[Snake_Eyes]

Hi all.
I want to buy a Q6600 G0 to
But witch one can i take for the best one.
I want that i can drop the Vcore to 1,100 or lower maybe.
I wanna use it to for Underclocking and overclocking.

I have called a online shop, and they tell me that they have the L726A365
(dont know fur sure the number are the same)
But i'll be sure they say its a A model.

Is this a good one, and what are the VID's of this one ? some knows ?

P.s what meens WC (sorry my englisch are not so good)
So i dont know the abbreviation WC
Edit already know (another toppic :P) its Water Cooled..

[largon]

Snake_Eyes,
As you can see from our little QC OC database there's no clear correlation between OC'ability and weeks for GØ cores.

[lukx]

I got question...I got orthos error when stressing with blend but it's strange becasue my keyboard capslock is starting to blink when this error happens. keyboard is bbluetooth one. I tested it on another usb slot and same thing. So is it normal that when orthos fail it's cpu oc that fails or it's something else in system?

[Robin BP]

Here is mine, 24 hour Prime stabel only 1,44v. It will run 3,9 with same vcore ,but core 4 will fail Prime after a while.

[largon]

I got question...I got orthos error when stressing with blend but it's strange becasue my keyboard capslock is starting to blink when this error happens. (...)

This is a feature in ORTHOS.
Untick "Additional notification" on ORTHOS main screen.

[no_n|ck]

Here is mine, 24 hour Prime stabel only 1,44v. It will run 3,9 with same vcore ,but core 4 will fail Prime after a while.

good OC for that low voltage, but LOL at why u didnt opend the prime workthread to show ur '24h hours Prime'?

[Robin BP]

I just reaplayed my AS5 to improve my temps, but i didnt. Now i am triying to figure out how low i can go on the Vcore before it fails Prime, like i said only 1 core didnt want to run 3,9 at 1,44v. So from what i have seen this must be one of the golden Q cores out there. My Vid is only 1,23v and tried to run 3,6 on that ,but that was a no go, so at 1,36v its was Prime stabel 24h 3600Mhz.

[sofarfrome]

update
L724,3.8 Ghz
Small FTT

Excellent temps for 1.58 vcore, what are you using for cooling?

[GripS]

I just reaplayed my AS5 to improve my temps, but i didnt. Now i am triying to figure out how low i can go on the Vcore before it fails Prime, like i said only 1 core didnt want to run 3,9 at 1,44v. So from what i have seen this must be one of the golden Q cores out there. My Vid is only 1,23v and tried to run 3,6 on that ,but that was a no go, so at 1,36v its was Prime stabel 24h 3600Mhz.

If your gonna make the claims please post the screens.

[Snake_Eyes]

Snake_Eyes,
As you can see from our little QC OC database there's no clear correlation between OC'ability and weeks for GØ cores.

Okay thanks.
And are there no clear correlation between the A and B batches ?

And with one can i take than for the lowest VID ?
I read that there are 2 different CPU's are, that have 1,100 and one 1,3500 standaard.
Witch one are the best ?