- May 11, 2012
- 12,914
- 3
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Disaster has struck, my HD7970 is unstable at any clock speed (including stock).
I bought it about three months ago, tested it, strapped a water-block to it and overclocked it then to a speed of 1200Mhz on the core, 1575Mhz on the memory at a voltage of ~1175Mv. It has been running fine since, until about 20min ago.
Quite randomly, I started to get memory artifacts in the game I was playing, then it crashed soon after.
I attempted to run a 3D Mark 11 benchmark run, which is what I use for a stability test, which crashed a few second into the first bench. I bumped down the memory frequency by 25Mhz, upped the voltage to 1200Mv and tried again, it crashed.
Turned off the machine, rebooted and it seemed to be fine. However any tests I ran afterward (3DMark or games) just failed.
At this point I just decided to start over again, I put the Core and Memory back to stock settings (925 and 1375Mhz respectively, voltage was left at 1175Mv) and tried a 3DMark run, didn't crash but rather pretty heavy artifacting and still crashes games.
Still the same behavior after a reboot, works first time and then fails in any subsequent test.
Has anyone had any similar experience? Any guess as to what could be the cause of this issue? I think it could be a problem with the memory as the artifacts I'm seeing typically are memory based (random texture popping in and spazzing).
Relevant specs.
HIS HD7970 H797F32G2M.
3570k clocked to 4.3Ghz.
Silverstone Strider Plus 750W.
Custom Water-cooling that keeps everything well within acceptable temps.
Sapphire TRIXX software for overclocking.
I bought it about three months ago, tested it, strapped a water-block to it and overclocked it then to a speed of 1200Mhz on the core, 1575Mhz on the memory at a voltage of ~1175Mv. It has been running fine since, until about 20min ago.
Quite randomly, I started to get memory artifacts in the game I was playing, then it crashed soon after.
I attempted to run a 3D Mark 11 benchmark run, which is what I use for a stability test, which crashed a few second into the first bench. I bumped down the memory frequency by 25Mhz, upped the voltage to 1200Mv and tried again, it crashed.
Turned off the machine, rebooted and it seemed to be fine. However any tests I ran afterward (3DMark or games) just failed.
At this point I just decided to start over again, I put the Core and Memory back to stock settings (925 and 1375Mhz respectively, voltage was left at 1175Mv) and tried a 3DMark run, didn't crash but rather pretty heavy artifacting and still crashes games.
Still the same behavior after a reboot, works first time and then fails in any subsequent test.
Has anyone had any similar experience? Any guess as to what could be the cause of this issue? I think it could be a problem with the memory as the artifacts I'm seeing typically are memory based (random texture popping in and spazzing).
Relevant specs.
HIS HD7970 H797F32G2M.
3570k clocked to 4.3Ghz.
Silverstone Strider Plus 750W.
Custom Water-cooling that keeps everything well within acceptable temps.
Sapphire TRIXX software for overclocking.
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