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Losing monitor signal while gaming (not overheating)

When the GPU is under heavy load (playing witcher 3) after some time the monitor loses signal and I have to restart the whole machine to regain the signal. I've looked up all the threads that discuss this problem but so far nothing helped. I tried to capture everything with MSI Afterburner to find out what's going on. At a random point the power limit goes through the roof and I lose the signal. Any ideas what is going on an how can I fix it?
I logged these data while running Witcher 3 at 4k to deliberately stress my rig to reach the point of "signal loss", but normally it occurs after around an hour or so while playing at 1080p. Here are the screencaptures of the afterburner log: http://imgur.com/a/vPvS1

Mobo: Asrock B85M-ITX
EVGA GTX 970 SC ACX 2.0
I5 4690K @3.5Ghz
8GB HyperX DDR3 RAM
PSU: Chieftec 500W GPA-500S8
tried geforce driver: 362.00, 364.72

Thanks for your help.
8 answers Last reply Best Answer
More about losing monitor signal gaming overheating
  1. From the description i would begin from the power supply. What is the wattage/brand/model. But it could be all sorts of things. Post some more details about your system.
  2. CBender said:
    From the description i would begin from the power supply. What is the wattage/brand/model. But it could be all sorts of things. Post some more details about your system.


    I've updated the post with more specs
  3. After taking everything apart and putting it back together I ran another test. Now there wasn't a surge in power consumption but I still lost the signal.

    http://imgur.com/a/jAqnH
  4. Use some synthetic benchmark to stress both the cpu and the gpu separately. The weakest points in your setup are the psu and the mobo. But it could be everything. So either try a different (better) power supply or stress just your cpu. Stressing the cpu would point away from the mobo but will NOT clear it as a 'suspect'.
  5. Hello, What drivers are you on for your GPU?
  6. Best answer
    Hello, this may not help but o had a similar issue with my GTX 970, after much troubleshooting and asking around, the culprit was my HDMI cable, you should try one that says that it is active 18Gbps, mine said it supported 18Gbps but wasn't an active cable so when my GPU was trying to send all the information it was losing packets along the way to my 4K television via HDMI. If you are not using HDMI or have tried this then disregard. They have the cable on newegg for 16 dollars item number is 12-117-610, that's the one that I got and it fixed my problem, sometimes the HDMI port on the graphics card can also be messed up which will cause this. Hope this helps.
  7. I had the same issue. Its the power supply, replace immediately so you don't cause damage to other components.
  8. me personally I think it is an issue with the game. I have the same problem as you, but it only happens when I play the Witcher 3.
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