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GTX970 power issue

QlimaxUK

QlimaxUK

QlimaxUK

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Joined
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So I had this GTX970 for more then a year now without any vault but just today while playing Victor Vran for a few hours my PC just switched off for about 3 seconds and then came back on, I have lowered settings from ultra to high and now it works fine I think it may be related to the MSAA x 4 (runs ok with FXAA) so I tested with furmark with no MSAA without a problem, then put it on MSAA x 8 and switched off after <1 minute, my PSU is a corsair CX750w so it shouldn't be the problem but can't rule it out at this stage, is it possible that this could be a MSAA specific problem?

Specs:

I7 - 4790K
16 GB RAM
GTX 970 4 GB
Corsair CX750w
Windows 7 64 bit


EDIT: I have been playing the game this happened on for about a week now without issue and it only just happened today

EDIT: GPU did coil whine a bit while in game and turning down to FXAA does reduce this a lot, this has been a day 1 problem with this card but I always do what I can with game settings to reduce it, ATI tool can cause this very bad so I no longer use it and furmark gets it bad only when I turn the 'Furry' thing off so I have to keep it on
 
temps are fine about 65 - 73 under 'heavy loads' and I think about 55c under minor loads (high settings on that game)
 
Quick test, runs perfectly stable with no MSAA, will not run it again tonight but that shows the card 'can' work fine it just can't be pushed too far

UQOrMnc.png
 
Just noticed power 107.18% would this be a problem? and is there a program that will 'capture' the HW info just before PC cuts out?


EDIT: I must log off now its getting late will reply to any posts tomorrow
 
I think afterburner can log everything. Never tried it but a quick google suggests it can. I am not sure on the power %. Afterburner is a much better program for this and shows you actual voltage readouts.
 
TheRealDeal;30497649 said:
Those clocks look wrong though. They are very low for a gtx970. Were those readings taken in game. Perhaps try a new driver to see if the problem goes away.
Click to expand...

Those are normal 970 clocks (no boost) for some of the cheaper 970s. Going by the lack of GPU boost and high fan speed looks to me like the card bios is set to throttle at 70C.

Which 970 is it ?
 
stooeh;30497654 said:
Those are normal 970 clocks (no boost) for some of the cheaper 970s. Going by the lack of GPU boost and high fan speed looks to me like the card bios is set to throttle at 70C.

Which 970 is it ?
Click to expand...

You sure. Nvidia's page suggest's a max boost of 1178 and a base clock of 1050. Most gtx970's i have seen go over what there suggested boost clock is. His seems to be hitting a max boost 1078 which is only 28mhz over the guaranteed minimum of 1050. It's says his gpu is fully loaded yet his clock is at 835. The temp at this point was only 69oc. They look wrong to me and i think afterburner would show us a lot more about what is actually happening. I don't have as much experience with Nvidia though so might be seeing this wrong.
 
Furmark isn't a good test as I'm sure nvidia throttle it in the drivers. My backup PC has a cheap 970 and furmark burn in test runs under 1000MHz at about 1.0V.

Running Heaven instead and the boost clock will hover between 1200-1280MHz and it will max out at 1.212v. I would suggest running Heaven or 3DMark and seeing if still hits 80% fan speed in which is case it's likely throttling.
 
stooeh;30497674 said:
Furmark isn't a good test as I'm sure nvidia throttle it in the drivers. My backup PC has a cheap 970 and furmark burn in test runs under 1000MHz at about 1.0V.

Running Heaven instead and the boost clock will hover between 1200-1280MHz and it will max out at 1.212v. I would suggest running Heaven or 3DMark and seeing if still hits 80% fan speed in which is case it's likely throttling.
Click to expand...

Yep i forgot he was running Furmark and that explains the weird clocks.
 
What else can I use instead of Furmark? (MUST BE FREE) I don't have any loyalty to furmark its just easy to use and free and ATI Tool is no longer an option for me as it causes bad coil whine
 
another thing I wanted to ask is what actually causes the power cut out, is it some kind of over-voltage protection the Corsair PSU has if the card draws too much power? and can this damage the PSU/GPU at all?
 
As above. Download heaven benchmark and check clocks and temps. Do you have another system to try the card in to rule out power supply or driver issue, like a friends system for example? It has nothing to do with using a specific type of AA and everything to do with the fault only occurs when the card is getting pushed harder due to the higher level of AA you are introducing.

Also, does the pc actually restart or do you just get a black screen for a few seconds then straight back into windows. The second would suggest a driver crash which would probably be solved by adding a touch more voltage or lowering boost clock depending on Temps.
 
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