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Wanted to get some feedback and ideas on a issue I'm having.

Certain video games cause my computer to hard power reset (as in it powers off with no warning then turns back on). I've identified Darksiders and Age of Wonders III, but there could be more.

Little back story. I build my own computers and this one is mostly new from earlier this year. I originally had a Radeon R9 270x in it, but decided to upgrade to a MSI GTX 970 about a month ago. I also replaced the RAM to get up to 16GB.

When I upgraded I kept the same monitors, case, keyboard, mouse, blu-ray and power supply.

My specs are:

  • Intel Core i5 4670K - Currently stock
  • Asus Z87-Pro
  • 16GB Crucial Ballistix
  • MSI GTX 970 Gaming 4G
  • CORSAIR HX Series HX750 PSU (around 5ish years old)
  • Samsung 840 Evo 512GB
  • Hitachi 4TB 7200RPM
  • 3x WD Green 1TB

At first I thought that maybe it was the PSU having too much power drawn (it is getting a wee bit old) so I ran a CPU burn in test to max the power. No crashes.

Then I ran FurMark to stress the GPU. No issues, so I ran FurMark and a burn test at the same time. Again no issues.

Thinking that maybe it is a directx issue I ran unigine's valley benchmark at max settings. Again no issue. I also did a clean uninstall/reinstall of the Nvidia drivers (used Guru3D DDU (driver uninstaller)).

At this point I was starting to wonder if it was just Darksiders (the first game I saw the issue with). So I play Far Cry 3 for a while (2 hours) and never had a crash.

But then tonight I tried playing Age of Wonders III and less than 5 minutes after loading into my save game, off the computer goes.

So back to troubleshooting. I pull the "new" memory out and put my old stuff in. Still crashes. I also check the power connections and everything seems legit.

I still have my previous video card (glad I haven't sold it yet) so I uninstall the Nvidia drivers and put the R9 270x in. Install the drivers and off to test Age of Wonders III. No crashes happen.

So at this point I'm not positive where to go from. I could try a fresh install of windows. Maybe going from AMD to Nvidia caused some issues. Oh and side note, this may be coincidence, but all my issues started the same weeks as I ran the Samsung performance restoration tool (for fixing the 840 EVOs).

I'm thinking about trying a different PSU. But if the R9 270x works fine.... From my research the GTX 970 only used about 30w more under load. But maybe that is enough?

Any thoughts or suggestions? I will of course RMA the card if need be, but I'm not quite positive that it is the issue yet.

  • Does the OS know that something bad happened? You never really mentioned it. Perhaps you could "Disable automatic restart on system failure"... pretty sure 7 still has that option. If you are getting a BSOD it is most likely graphics driver related but that might help narrow down the cause just to be sure. BlueScreenView can be used to view BSOD dumps quickly. – Matt Nov 8 '14 at 3:49
  • Yeah no BSOD and I did try disabling the automatic restart and still don't get anymore more than a kernel failure. Which seems to indicate hardware of some sort methinks. – Nori Nov 8 '14 at 5:08
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    I suppose you dont have another pc for part testing at this time? – Matt Nov 8 '14 at 12:59
  • I ordered a PSU on a hunch and it did end up proving to be that. Very odd but it happens. Now I just have to decide if I want to bother RMAing it since I already bought a new one (5 year old vs 7 year warranty). – Nori Nov 9 '14 at 16:38
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Not sure if anyone is interested. But I tried a new PSU and it seems to have fixed the issue. Really odd I think though because I put my old card in and it had no issues. Granted it uses slightly less power (30w) and has two 6 pins instead of a 8 pin and a 6 pin.

Hopefully this info is useful to anyone else with a similar problem.

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