I have recently upgraded my system with an Asus GeForce GTX 970 4GB STRIX Video Card

My build (+ 16GB memory, 1 SSD, 1 HDD)

Now whenever I run something more demanding the monitor loses the signal and the screen goes black requiring a hard reboot of the system. Though I can still hear the sound. My goto tests are the Unigine Heaven Benchmark and the Bioshock Infinite Benchmark with the highest video settings.

Is my GPU broken? I have updated to the latest Nvidia drivers using the GeForce Experience application. I have also updated the BIOS to the latest version and deleted all my old GPU drivers (previously had a AMD Radeon HD 6950) using Display Driver Uninstaller.

Is it the PSU (Corsair Enthusiast 650W 80+ Certified ATX Power Supply) that can't handle the GPU? If so, what should I get instead?

  • Your PSU should be able to supply the required power. Could you edit your question to include how you removed the AMD drivers? – Andrew Morton May 30 '16 at 16:08
  • @AndrewMorton Updated – Oskar Persson May 30 '16 at 16:10
  • Does your sound go via the video card (the sound playback device will be have something like "NVIDIA High Definition Audio" in its description)? Does the video always disappear after the same time (say, ten minutes)? Is the video lead securely connected at both ends - maybe it falls out a tiny bit when the items it is connected to get hot. – Andrew Morton May 30 '16 at 16:23
  • No the sound card is integrated on the mobo. The video disappear when running the benchmark 2-10 minutes – Oskar Persson May 30 '16 at 16:25
  • Can you monitor the GPU Temperature during the tests and log it? , I had similar problem and it was because of excesive heat, not enough ventilation, during GPU highest demand the temprature skyrocketed and fans where not correctly setup. – arana May 30 '16 at 16:39

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