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Random colors freeze (GPU?)

Duvan

Duvan

Duvan

Associate
Joined
17 Nov 2010
Posts
113
I bought new hardware a few weeks ago. Everything been working fine.
But yesterday my computer froze thrice... the screen turned a random color (and the sound in my speakers became monotone).
This happened just while surfing the internet, facebooking, listening to music in foobar and on youtube (no games played yesterday)... And the next time I was just on facebook and moving some files to my phone through USB. It froze a third time too, in about the same settings. If I remember correct, the computer shuts itself down after some 10-15 seconds after this state.

I software overclocked my Asus HD7850 2 weeks ago
http://www.asus.com/Graphics_Cards/AMD_Series/HD7850DC22GD5/#overview

But I did it with just Catalyst control center. I made it run at 1050 mhz clock and 1275-1350 memory clock and 20% more power... (no voltage OC of course).
I checked the temeperatures and it's about 30+ celsius in idle... and maybe 50-70 after running games?
I haven't played games for so many hours, but I did so 2 days ago for a couple of hours. The day before this started happening, but during gaming I've never had any problems.

Is it possible that I just run my GPU at too high memory or clock speeds? It is strange that it happens suddenly now though, and why not before? Could you damage the GPU From just standard limit GPU OC:ing huh?

Well, I've turned the GPU down to default clock now. Haven't seen anything yet... waiting.
But most reviews of Hd7850:s seem to run them OC:ed to 1050 clock and at least 1350 mem clock without problems?

Thank you for any guesses or advice!
 
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Not really sure on this one, never heard of it before, my Gigabyte 7850 is at 1060/1500 on stock volts and have not had a single issue with it, idles at 40c(crap airflow in case) and hits 60-65 under full load.
 
But this kind of freezing... do you think it has to do with the GPU or could it be even a software/other hardware issue? Can OC:ed clock speeds actually affect a computer when the card itself is runnning at a much lower clock currently (like it does when surfing the web... (300 mhz / 150 mhz currently.).

(Dxdiag says I have only 1750 GPU MB btw - GTAIV says I have 2xxx something.).
 
Well, an update about this: Since this happened i put the GPU back to stock speeds, but started to slowly move the sliders back to the OC rate I had. No problems ever appeared again.
I'm quite sure this was not GPU related but maybe something with my firewall or other software related things (I cleaned my registry and uninstalled Java (which I installed a day before I got these problems)) so almost ready to blame Java for this!:P Haven't reinstalled yet.

NOTE to moderators: Maybe not always good to move a thread to the GPU forum directory before it's clear what is causing the problem.:P Maybe I could have had more answers where I originally posted it:)
 
Every GPU is different, none of them overclock in the same way or to the same levels, not even those from the same brand.

1050Mhz is a pretty high overclock (without extra volts) for a 7850, it could very well be on the limit of stability, a 20Mhz down clock or + 20mv on the volts is usually the cure.

Your memory should be fine at 1375Mhz
 
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