What's wrong with him?

I power up my PC, let it run for maybe three or four minutes, and then it just restarts itself without warning.
It starts the boot process, but then it gets stuck right at the beginning.
So, I try to restart it manually.
All I get is a black screen—nothing at all.
I try another restart.
Then this pops up: View on imgur
I’ve tried hitting F1 or F2, but there's absolutely no response.
Another restart, and it's back to a completely black screen.
What on earth could have gone wrong here?

It’s probably just the CMOS battery on the motherboard—those things die faster than you'd think. If you can't even get into the BIOS, try using a jumper to reset the CMOS first.

$5.00 I installed a new battery, and everything is working perfectly now.
Thank you.
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