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Deleted member 57642
Guest
That means your card wasn't stable enough. And yeah, it could be temperature related but not because of GPU. My bet is on VRM, HD 4870 has a digital VRM and even with watercooling showing the GPU at 45*C the cards would reset the PC or give a black screen on the monitor. Verifiying the VRM with everest - it was showing more then 100*C wile the GPU was near 45*C.
I have an excellent cooling on my card, even some heatsinks on VRM but I can't check the real temps cause HD 4850 has no sensor near VRM,shows only the GPU temps. Yet, with 700/1150 OC my card resets in stability test and of course the GPU is lower then 65*C. At stock temperatures my VRM can take it with current cooling. Until I find some heavy heat sink for my VRM I won't even OC my card. Of course there's always the VRM cooling from the original cooler, but I need my warranty so I won't cut it.
I have an excellent cooling on my card, even some heatsinks on VRM but I can't check the real temps cause HD 4850 has no sensor near VRM,shows only the GPU temps. Yet, with 700/1150 OC my card resets in stability test and of course the GPU is lower then 65*C. At stock temperatures my VRM can take it with current cooling. Until I find some heavy heat sink for my VRM I won't even OC my card. Of course there's always the VRM cooling from the original cooler, but I need my warranty so I won't cut it.