Q6600 G0 @ Default = Fail - Scooby snacks for someone to help me

Fingers crossed it was just the vcore needing a nudge! If your Mobo is drooping, then the VID voltage might not have been enough.
 
i have a feeling it might have been the memory voltage....... as I upped this to 2.1 (+0.3) and it seems to be running fine still....

I guess changing so many settings at the same time isnt ideal........ but i guess if this continues to be stable overnight then i have a stable oc at 2.7
 
if it is any help, my setup which is a G0 Q6600 (stock) @ 1.28v in bios and dips to about 1.26 when under load was failing prime at stock after about 20mins. I think i solved it by upping the volts on my memory to 2.02v (drops to 2.0v on load) my memory was the OCZ 2gb 6400 rev2 which says 1.9 - 2.1 running @ 4-4-4-15 and just rand prime for a good 4 hours stable, but will leave it going longer when I have time to keep an eye on it.

good luck and lets hope it was just the memory voltage!
 
well this morning it was still okay (9 hours) :) So I am going to leave it whilst at work which will be another 10 hours........ If it is still green I guess its working fine now with the increase voltage.
 
Glad it seems to have worked now.

The only problem is that you updated your bios, and increased your RAM and CPU voltage at the same time, so now you don't what the problem was!

As you say your RAM didn't fail memtest previously, even though it would appear it wasn't being run at its correct voltage, I would still suspect the CPU vcore.

It could have been both things of course! :)
 
yeah i know what you mean on that front - but tbh if ive got a stable running system and can OC it a bit then Im a happy chappy :)
 
well i started getting more fails, blue screens etc...... so tested with both memory again and it failed several times in Prime95 on different tests.......

UPDATE:

I have completed tests with both sticks of memory 1 at a time:-

Everything set at stock (slack timings):-
memory @ 5 5 5 18 @ 2.1V

STICK1 (PASSED)
---------
Memtest (2 runs - 40mins runtime) - PASS
Memtest (Test no5 - 1 Hour runtime) - PASS
Prime95 (In-place test 18hrs runtine) - PASS
Prime95 (Blend test 90mins runtime) - PASS
Prime95 (Small test 60mins runtime) - PASS
Company of Heroes (1st mission) - PASS


STICK2 - FAIL
--------
Memtest (Test no5 - 1 Hour runtime) - PASS
Prime95 (Small test 60mins runtime) - FAIL (Blue screened at 65mins)
Prime95 (Small test 6 hours) - PASS
Prime95 (Inplace test 4 mins) - FAIL (all 4 cores failed @ 4min 4min 3min 8min)
Prime95 (Inplace test 1 mins) - FAIL
Prime95 (Inplace test 2 mins) - FAIL

As you can see memory stick 2 failed a few times in Prime95 and blue screened once. It did pass memtest for 1 hour.

I dont like how stick 2 passed memtest again - but it failing in Prime must mean something....

Whatya think?

Thanks
 
first thing to point out is in general vdroop on the giga p35 boards is minimal, generally lower, much lower than some other brands. vdroop is NOT the difference between bios settings and real settings, thats simple bios being fairly retardedly made, vdroop only describes the drop in voltage from idle to load. as i said vdroop is minimal on the board, but voltage is noticeably lower in actual use than set in the bios. so for instance, if you set 1.3v in the bios on my dq6 it would run at quite a bit lower. for instance at the moment i'm running at 1.65v in the bios, but its giving me a real output of around 1.57 idle, and 1.55-1.57v under load.

is gigabyte easytune works with your board, then i'd load that up, and core temp, other things, see what voltage you have and set whatever you need to in bios to read 1.3-1.325 in windows.

having said all that, i think its probo the memory :p

honestly i'd whack the timings to exactly the rated timings, and rated voltage, test again, if it fails, put voltage up another 0.1v and see how it goes, might be the memory is ever so slightly undervolting aswell. if it fails still then at least you can rma and say at stock voltage + timings its failed.
 
im running at exactly rated setting for 1.8V (really slack timings) but running the memory at 2.1V.....

I got home again and Prime is failing on blend after 1 or 2 minutes every time i run it..... The 2 tests the fail in Prime are the memory intensive ones. It even crashed once when running prime and also crashed when I stopped and rebooted.

Strong feeling its the memory stick and will RMA both
 
don't mean to jump in but i have a question, been running prime for a bit and saw this thread, I've only OC'd my CPU a tad to 2.5 till i add my other cooler later. Basically Coretemp is reading the volts as 1.2875 and cpu-z is reading it at 1.192? If it was something between the BIOS and windows then why is core temp showing that? Oh and my Voltage in BIOS is currently set to auto till i move to 3ghz.

EDIT: Mobo is a Asus P5K-E
 
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CoreTemp is showing the default voltage (VID) of your CPU.

Providing you are running the latest version of CPU-Z (v1.41) it will be showing roughly the current vcore in Windows.
 
Quick noobie question from me, When the PC is under load is this when i'll experience it dropping like this? As i can remember CPU Z always showing the same as coretemp.
 
Well there will almost always be a drop between what is set in BIOS and what is shown in Windows. And then there will be another smaller drop when load is applied.
 
It's hard to tell since you have the vcore set to Auto. Manually set it to 1.2875v and see what CPU-Z says.

Also if you have Speedstep enabled it will drop the vcore and clock speed at idle, raising it again under load.
 
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