BSOD when attempting overclock

[kusetjuv]

I got a couple of xfx 6950 2gb (http://www.komplett.no/k/ki.asp?sku=639513)

Ive heard these are good for overclocking, but for some reason I cant overclock them over 840/1325, it gives me a bluescreen if I try.

Why?

I dont got any screenshot or dumpfile from the bsod since I just reinstalled windows.

 

[Deemo13]

What power supply are you running? What does the rest of your system specs look like?

 

[kusetjuv]

Right now:

i5 2500k unclocked
16gb ram
Seagate 1tb 7200
750W corsair psu
2 x XFX 6950
Sabertooth p67 mobo

 

[drums101]

what are your temps in game at stock clocks...does the bluescreen come right away or after a few mins of gaming?

 

[Deemo13]

Maybe lower the memory clock a bit. That's pretty high for a 6950.

 

[Deemo13]

this really should be in the overclocking section......but listen to deemo lol he knows what he is talking about and can type faster then me...beat me to the punch this time!

Hey you know what you're talking about too, but yea I think I can type quicker. I finally won!

 

[drums101]

this really should be in the overclocking section......but listen to deemo lol he knows what he is talking about and can type faster then me...beat me to the punch this time!

 

[drums101]

finally? We been back and forth the past month haha

 

[Deemo13]

Lol that is true.

 

[mafisometal]

That shouldn't be a big problem at all. The 6950 is in theory a de-tuned 6970. I was able to mod the entire card to run at the specs of a 6970. I'm running two of them as well with that spec. You should be able to go 880Mhz on core clock and 1375Mhz on memory clock. If you're getting BSOD it can be other things that might be interfering with the power line of the card

What motherboard are you using? Are you using any throttling strings withing the board I.E. Asus uses core line calibration to make sure that you do not use more power than is needed.

 

[drums101]

you gotta to take into consideration why the 6950 is a 6950 instead of a 6970...it could be a binned card that cannot run at 6970 speeds or it could just simply be a 6970 badged/clocked as a 6950 to fill a market void.

 

[kusetjuv]

what are your temps in game at stock clocks...does the bluescreen come right away or after a few mins of gaming?

The temps have always been good, 30-35C on idle and rarely pass 70 when gaming.

 

[drums101]

thats good...did you try as deemo said? lower your mem clock a bit?

 

[kusetjuv]

thats good...did you try as deemo said? lower your mem clock a bit?

No I havent, cause im unsure how much memory clock I need to remove.

Should I try 1300?

 

[Deemo13]

I don't remember what stock was when I had mine. Was it 1250? I forgot. I kept mine around 1350, though mine was (and still is) flashed to a 6970.

 

[kusetjuv]

I don't remember what stock was when I had mine. Was it 1250? I forgot. I kept mine around 1350, though mine was (and still is) flashed to a 6970.

Ok ill try.