So, as of yesterday, my pc has crashed twice... kinda. The power LED on the case stays on, but my monitor goes black, then says no input. I built this pc several months ago, and I cheaped out on the motherboard. Is this a screen problem? psu problem? motherboard problem? after the "crash", i manually reset the computer, and it boosts just fine. I don't remember the circumstances of the first crash, but the second time I was downloading a bunch of mods for fallout 3, with maybe 10 chrome tabs open and 10 or 15 tabs for various utilities open at once. specs: i5-4670k at stock, r9 290 at ~1000 mz, some msi h81 mobo, 8gb ddr3 1600 ram.