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[Help] GTX 970 Stuck Low Voltage

post #1 of 11
Thread Starter 
Hello overclock.net, thought I'd see if you guys might be able to help me out.

I noticed that my FPS had dipped considerably (about 15 FPS) while playing The Witcher 3. I thought I might have forgotten to overclock, but that wasn't it. I turn on in game OSD, and I discover that the clock speeds are stuck at 1050 mHz. Furthermore, the voltage of the card seemed to be capping at 987 mV, as opposed to the usual ~1.2V. I thought maybe the card wasn't being pushed hard enough to use the full voltage, but even with hairworks maxed out and my FPS sputtering and dying, it would refuse to budge from 1050 mHZ/987 mV.

The odd thing is, I tried switching to EVGA Precision and turning on kboost. When I was on my desktop, the voltage would hit 1.2V and the core clock would go to 1478. But when I got past the Witcher 3 loading screen, it would drop back to 1050 mHz/987 mV. The same thing happened in Fallout 4 as well.

I've tried resetting my overclock, reinstalling Afterburner, reinstalling my drivers, setting max-performance in NVIDIA Control Panel...all to no avail.

Specs
EVGA GTX 970 SC ACX 2.0
i5 4690K @ 4.6gHz
8GB DD3 RAM @ 1600
Windows 10 64 Bit
post #2 of 11
I have that card and recently RMA'd it for reasons like this....doesn't even maintain it's advertised boost clocks..

How warm does your card get? Try running GPU-Z while benching / gaming then afterwards, look in the sensors tab for "Perfcap Reason" sensor
post #3 of 11
Thread Starter 
Not warm at all, 50 degrees. Used to hit high 70s under load though. I will probably RMA mine too.
post #4 of 11
I had trouble with the latest driver too and went back to 368.22
post #5 of 11
Thread Starter 
Tried going back one, didn't do anything. I'll try again though, nothing to lose but time haha.
post #6 of 11
Thread Starter 
Tried going back one, didn't do anything. I'll try again though, nothing to lose but time haha.
post #7 of 11
Check the power consumption. I recently had a similar problem with the exact same card, but what was happening was that according to evga precision and msi AB the power was at 110% which is the maximum allowed before it down clocks. GPU-Z only said like 55% though. I tried a bunch of things and eventually took my whole computer apart and put it back together and some how that magically fixed the problem. Before that I had tried everything you said. I still don't know what was causing it, but it is back to normal now and gpu-z and AB/Precision agree on the power consumption and it isn't hitting the max anymore.
post #8 of 11
Thread Starter 
Quote:
Originally Posted by chr1spe View Post

Check the power consumption. I recently had a similar problem with the exact same card, but what was happening was that according to evga precision and msi AB the power was at 110% which is the maximum allowed before it down clocks. GPU-Z only said like 55% though. I tried a bunch of things and eventually took my whole computer apart and put it back together and some how that magically fixed the problem. Before that I had tried everything you said. I still don't know what was causing it, but it is back to normal now and gpu-z and AB/Precision agree on the power consumption and it isn't hitting the max anymore.

Hmm. interesting. I saw in precision that the power consumption was like 105% so I didn't bother looking at GPU-Z. I decided to just go ahead and RMA it since it was under warranty, but I will try the take-it-apart-put-it-back-together voodoo magic if the problem persists (either with the 970 or the 1070 I've ordered).
post #9 of 11
Quote:
Originally Posted by Caliax View Post

Hmm. interesting. I saw in precision that the power consumption was like 105% so I didn't bother looking at GPU-Z. I decided to just go ahead and RMA it since it was under warranty, but I will try the take-it-apart-put-it-back-together voodoo magic if the problem persists (either with the 970 or the 1070 I've ordered).

Yeah, sorry I can't help more, but I never did figure out what was happening exactly and the only thing I know is that I think something was messing up the power consumption readings on the card and causing it to throttle based on that. AFAIK, GPU-Z uses a different method to estimate power consumption because Nvidia and AMD measure/estimate the power consumption differently or something like that. I actually made a thread here. http://www.overclock.net/t/1601759/970-throttling-at-stock-clock-under-any-load
post #10 of 11
Thread Starter 
Quote:
Originally Posted by chr1spe View Post

Yeah, sorry I can't help more, but I never did figure out what was happening exactly and the only thing I know is that I think something was messing up the power consumption readings on the card and causing it to throttle based on that. AFAIK, GPU-Z uses a different method to estimate power consumption because Nvidia and AMD measure/estimate the power consumption differently or something like that. I actually made a thread here. http://www.overclock.net/t/1601759/970-throttling-at-stock-clock-under-any-load

No you've been very helpful, I'll at least know the potential cause if not the solution. Worse comes to worse I'll borrow a PSU from someone to test it out
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