HD7970 Lightning: driver crash at 1.070 GHZ

cress572 · Dec 3, 2014

I brought this HD7970 Lightning 3 days ago, my problem is if i try to run any! game with 1070 MHZ core clock the game freezes and i get that message "Display driver stopped responding and has recovered " but if i turn the core clock down to 1000mhz everything is fine :x Any ideas? i allrdy tried out various drivers for this and still nothing.

My System:
i5 4570S
8GB 1600mhz ram
MSI HD7970 Lightning
Thermaltake Hamburg 530W

Varun Salvi · Dec 3, 2014

Keep ur card at default clocks only as certain apps like flash player content, some games and many more things kill ur GPU driver when core/GPU clocks are over/under clocked but over/under clocking ur GPU memory clocks won't cause any trouble. So in short , just keep core clock default and change memory as u wish. I experienced same(exactly same) issue on my gtx 285 and have fixed it by just keeping core clock default with memory still over clocked by 395 MHz.

cress572 · Dec 3, 2014

The Default core clock for the Lightning is 1070 MHZ :S this is why im a bit dissapointed.

Neur0nauT · Dec 3, 2014

cress572 :

Have you tried decreasing the Memory clock then increasing the GPU clock? The VRAM might be overheating an in-turn heating the GPU too much. A lot the time it is dodgy VRAM that causes more issues than the GPU.

blacksheep123 · Dec 3, 2014

your Thermaltake Hamburg 530W psu has a single 12v rail at 38 amps.. thats pretty low for a system that is powered by 7970

average psu gives around 50 amps at 12v rail

try a good quality 80 plus bronze psu that can deliver atleast 50-60 amps on 12v rail

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HD7970 Lightning: driver crash at 1.070 GHZ

cress572

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Neur0nauT

Varun Salvi

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cress572

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Neur0nauT

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blacksheep123

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