My PC is Win7, i5-2500K, 16GB RAM, 980GTX, ASUS P8P67 Pro Rev3, various HDs including SSD for OS, with 3 monitors in surround mode.
Over the weekend my PC crashed with a buzz through the speakers and then dead screens, the screen that normally shows the POST messages as it boots was still recieving something therefore no message about 'no input' came up like the other screens.
After about 5 minutes of sitting there dead to the world, there is a beep and the PC comes back to life as if nothing has hapened, and continues to boot up fine and runs like normal.
This morning I booted the machine up before work and it again took about 5 minutes to POST again.
Any ideas what to look for before I have to start buying bits and swapping out parts?