Black Screen while Gaming, But Sound still working

While gaming my 2 monitors go black with the no signal message and I hear the Windows disconnect sound like when you unplug an USB. The thing is that the sound of the game is still running and I am able to speak with my friends on TeamSpeak.

Here is the list of games where this happen:

• Counter Strike : Global Offensive
• Rust
• Crysis 3
• Rainbow Six : Siege

I can't ALT+TAB nor CTRL+ALT+DELETE

My setup:

• OS - Windows 10 Pro x64
• CPU - Intel i5-4690
• Mainboard - ASUSTeK MAXIMUS VII HERO
• GPU - ASUS GTX 780 STRIX
• RAM - 2x DDR3 4GB
• PSU - Corsair GS800W
• Storage - 250GB
• SSD - 1TB HDD
• Monitors - 1080p60hz(DVI) - 1440p 144hz(Display Port)

Here are the thing I tried out.

• Reinstall Windows
• Changed GPU to another PCI Slot
• Used older GPU Drivers
• Tried running on only 1 monitor
• After changing to an older Driver I let FurMark run for like 30 min with no crash
• Unplug monitor cable and plug it back while the screen is black
• Tried with a brand new GTX 980 and it still crashes

What kind of tests could I do to find what piece of hardware is causing this issue?

NOTE: My last GPU broke(not going over 10 FPS while gaming)

1 Answer

The problem was the power supply was causing my GPU to run out of power. This caused the monitors to disconnect from the GPU.