Blue screen of death on q6600 OC

[vaj3000]

After some very helpfull advice from some of you guys on this forum i have managed to overclock my q6600 to 3ghz, 333 X 9 with the standard unchanged vcore(132500V) however i did get the screen of death several times yesterday. I did test with prime 95 and it seemed stable for 10 mins with temps about 61C at full load. The idle temps are around 31-28 C. The ram's normal rate is 800mhz and is currently running on 833mhz. I did alter the vcore yesterday as i thought the system instability may have been due to a lack of power but my mild increase didnt have any effect. Today i just knocked the vcore to normal and the system seems to be fine.

Any ideas guys? Thanks in advance.

Also a quick noob question. What would you guys consider idle temp? Is it as soon as you swith your system on or do you leave it running for a while without load and then check the temps?

 

[vaj3000]

Nope my system isnt stable. ive just had several restarts and blue screens

 

[sportsfanboy]

In my experience, most blue screens are ram related. Some ram just will not overclock well or at all. Even 33mhz in some cases can cause blue screens.

I would try a 1:1 ratio for now with your current fsb and other settings, and see if that solves the problem. You can always play with dividers and frequency later.

 

[masteryoda34]

10 Minutes of Prime 95 is nothing. Try running it for several hours to determine stability.

 

[olddman]

If you set your FSB of 333 with a multiplier of 9 to =2997 (3GHs).

I think your memory should be set to 667 (333x2) for a 1:1 ration.

MY bios sets my memory speed automatically when I change FSB speed and I didn't change it - so (and someone correct me if I'm wrong); you may be able to go in and set it to 800 with that 333FSB and still be ok. Not for sure that will give you the 1:1 ratio though

Start with vcore on stock @1.265 (maybe a little higher) and see if it boots. If it dont- increase voltage till it does.

MYself- I started with 1.4 and went down.

I would then run Prime95 for a minimum of 8 to 12 hrs. If it stays stable for that lenght of time go ahead and let it run about 24. If it doesn't - increase voltage a little more and try again till it does. Just make sure you don't go over the 1.5 limit, but with just a 3GHs OC; it should not even come close to that.

Hope that helps

 

[kg4icg]

you cqn set it up like mine in the last post you authored. those screen shots I posted are my current setup that has been running stable for the last 3 months with no bsod.

 

[vaj3000]

thanks guys

 

[vaj3000]

kg4icg i tried your setting (the ones that where available on my bios anyway ) and the system simply wouldnt get past the post, all id get is a black screen.

the temps seem fine but its always worker1 that produces an error!
[Sat Feb 02 19:11:47 2008]
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.
[Sat Feb 02 19:55:26 2008]
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.
[Sat Feb 02 20:52:08 2008]
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.
[Sat Feb 02 21:02:40 2008]
FATAL ERROR: Resulting sum was 2.813208101669474e+020, expected: 2368067357215104
Hardware failure detected, consult stress.txt file.

 

[vaj3000]

the temps seem fine for the 333x9 i meant

 

[vaj3000]

any ideas guys?

 

[vaj3000]

it seems the most i can get to is 2.85ghz without registring an error on prime 95. Could this be due to the fact that i have flashed my mobo with the latest bios(i think was beta) for the ep35ds3l? Is it possible to downgrade bios?

 

[vaj3000]

have just flashed my bios to the latest non beta version and stilll no luck. I have a feeling that my corssair memory just doesnt overclock very well