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Problem with my new HD 7850

post #1 of 8
Thread Starter 
Hello, i got a new HD7850 from sapphire (2Go, stock overclocked) and since yesterday, my screen goes plain white, or white/gray stripes, and even orange! This problem is happening randomly, as i've played all night long on portal 2 and deus ex: hr at max settings, and today it crashed 3 times in less than 2 hours, after while browsing.

I downclocked the GPU core clock to 800 (instead of 860MHz) and the memory to 1000MHz instead of 1200 in the meantime and it seems to be running fine. I haven't tried to stress the GPU since the downclock, but i'll asap.

The catalyst control center is in its 12.10 version.

My specs are :
  • Intel core i5 3570K at stock speed(brand new build, will oc soon)
  • 8 Go DDR3 Ram (corsair
  • ASRock Z77 Extreme4
  • Antec HCG 520 M

Please help me !
post #2 of 8
Sounds like you need to return the card or file an RMA with Sapphire. Driver issues don't usually cause the issues you're having, bad cards do.
post #3 of 8
Hi, sometime factory OC'd cards are just to close to the limit and this can happen. If you down clock the card and it becomes stable then you just got a chip that couldn't handle the OC that sapphire put on it. You will need to exchange it.
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by UsedPaperclip View Post

Sounds like you need to return the card or file an RMA with Sapphire. Driver issues don't usually cause the issues you're having, bad cards do.
I hope i won't have to, so i'll look out for another answer, but i'm thinking about it...
Quote:
Originally Posted by givmedew View Post

Hi, sometime factory OC'd cards are just to close to the limit and this can happen. If you down clock the card and it becomes stable then you just got a chip that couldn't handle the OC that sapphire put on it. You will need to exchange it.

This is what i did, but as i'm watching the GPUz log file, there doesn't seem to be any temp peak before a crash... In fact those log aren't showing anything relevant (there is nothing which is anormally high or low, but maybe i'm wrong)
post #5 of 8
There doesn't need to be a temperature peak for it to crash. If you OC a chip eventually it becomes unstable and it so happens to be that once in a while they have a chip that is just not quite capable of being OC'd.

This was a big issue for DirectCU II Top 670 owners and for one of the 670 EVGA cards.
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post #6 of 8
Thread Starter 
I guess i'm going to return it as it is still guarenteed
post #7 of 8
Quote:
Originally Posted by givmedew View Post

There doesn't need to be a temperature peak for it to crash. If you OC a chip eventually it becomes unstable and it so happens to be that once in a while they have a chip that is just not quite capable of being OC'd.
This was a big issue for DirectCU II Top 670 owners and for one of the 670 EVGA cards.

Givmedew is more than likely dead on so your options are to either send it back to where you bought it and get what you paid for or just lower the clocks and use it that way. Wherever you bought it should pay for the shipping back and send you a new card for free. If you call I'm sure they can send you one ahead of time but they will ask for a credit card number in case they don't get the old one back.
post #8 of 8
Thread Starter 
Thanks, i'll see what i can do tomorrow then !

Again, thank you for the help guys !
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