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GPU clock rate drops when I speed up the fan. Why?
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I have a EVGA GTX 780 and have overclocked it using Precision.

103% power, 130 MHz GPU offset, and 200 MHz memory offset.

When the fan set to 100% either via disabling the "Auto" checkbox or by using a custom fan curve, my GPU clock drops to 1045 MHz. It runs a nice and cool 56C though which is great.

However if I check "Auto" box and disable the custom fan curse, the fan slows down and the GPU clock immediately spikes to 1097 MHz.

What gives? Is it thinking that because the fan is running so fast it needs to delock itself a tiny bit to slow down on heat?

How can I get my fan to run full blast to keep my GPU cool while still keeping maximum stable overclock? I don't want to do crazy things like flashing the BIOS to a custom firmware or tweaking the voltage. Mining is fun, but I don't want to risk the card's health. I'll throw a few DOGE your way if you can help me solve this!

Thanks!

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Posted
10 years ago