Hey guys,
got a problem here. Diamond brand HD5970 locks up randomly when I fire up 3DMark (tried 3D06 and Vantage). Sometimes it passes the first GPU test and freezes during the 2nd, but mostly it just hangs at the first. No screen distortion or anything, the rig just locks up.
I set the CPU/ram back to stock clocks, but that made no difference (overclock was 20h prime stable anyways).
When I fire up FUR, it works - BUT when I check with MSI afterburner, I see that it auto-downclocks to 550 core
When I run the renamed FUR.exe it locks up within 2-3s. Even when I manually reduce the core speed to that same 550Mhz - anybody got any clue as to what is going on?
Even more strange is that the card seems to be running milkyway@home fine (distributed computing project that is VERY stressful on the GPU, more than games):
The card is watercooled, but I had the same lockups during 3Dmark with the stock cooler (I thought it may be heat related back then) but now, with the waterblock, it clearly isn't.
Tried both the official beta driver from AMD's homepage and the Cat 9,12.
Other hardware is Core i7 920, Asus RIIE, 6GB DDR3-1600, Corsair HX1000.
Is this some internal defect due to TSMC's crappy 40nm process? Any input appreciated...
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