Hi, I've recently upgraded my system with a new gpu - Asus GTX 970 Strix. Everything was running fine and the infamous coil whine is barely noticable, so that's not a problem hopefully, but I've noticed a weird fan behaviour after longer gaming sessions, even when the card is in idle, or with usage below <50% and temps below 65° (eg. when the fans should be completely stopped). Instead, the fans seemingly randomly start and stop, again and again, withought any reason whatsoever.
The only interesting thing I've managed to discover about it is that it's somehow linked to GPU Power % - when the gpu power spikes, let's say from 30 to 34%, the fans spike to around 1500 rpm too, and then suddenly stop. This happens randomly every second or so. Yet when I start a benchmark or a game and the power goes to 100%, the fans behaves the same (random spikes) and as the temperature goes up, they start to level the speed up until it's stable and in direct relation to the gpu temperature (as it should be).
Here's a screenshot from MSI afterburner where the spikes and the relation to power% graph are clearly visible (normally, the fan speed should be 0 all the way): http://i.imgur.com/BWxU0lk.png
I should also add that the gpu is not overclocked and with latest nvidia drivers (344.16) and that the spikes happen no matter what fan settings I chose (automatic, user, user curve defined).
Has anyone experienced a similar behaviour? Is it likely a faulty gpu/psu or something else entirely? I've searched for similar problems on the forums and the only thread I've found so far was closed with a conclusion it's most likely a faulty fan's voltage regulator.
My pc specs are below:
Intel Core i5-4670K
Asus GTX 970 Strix
Kingston 16GB (4x4GB) DDR3 1600 XMP
MB ASUS Z87-A - Intel Z87
Seasonic SS-500ET, T3 500W
Thank you in advance for any help!
The only interesting thing I've managed to discover about it is that it's somehow linked to GPU Power % - when the gpu power spikes, let's say from 30 to 34%, the fans spike to around 1500 rpm too, and then suddenly stop. This happens randomly every second or so. Yet when I start a benchmark or a game and the power goes to 100%, the fans behaves the same (random spikes) and as the temperature goes up, they start to level the speed up until it's stable and in direct relation to the gpu temperature (as it should be).
Here's a screenshot from MSI afterburner where the spikes and the relation to power% graph are clearly visible (normally, the fan speed should be 0 all the way): http://i.imgur.com/BWxU0lk.png
I should also add that the gpu is not overclocked and with latest nvidia drivers (344.16) and that the spikes happen no matter what fan settings I chose (automatic, user, user curve defined).
Has anyone experienced a similar behaviour? Is it likely a faulty gpu/psu or something else entirely? I've searched for similar problems on the forums and the only thread I've found so far was closed with a conclusion it's most likely a faulty fan's voltage regulator.
My pc specs are below:
Intel Core i5-4670K
Asus GTX 970 Strix
Kingston 16GB (4x4GB) DDR3 1600 XMP
MB ASUS Z87-A - Intel Z87
Seasonic SS-500ET, T3 500W
Thank you in advance for any help!
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