Gaming PC sometimes fails to boot

tophe_guevara

Honorable
Dec 25, 2013
4
0
10,510
So recently I bought my own rig with the following specs:

vga: sapphire r9-270x
cpu: intel i5
mobo: gigabyte g1 sniper b5
ram: 1x4 gskills ddr3 (4gb)

So here's my issue: My PC sometimes fails to boot (monitor just turns black) and reboots itself for a few times, I have to restart it using the restart button for it to boot normally (with no problem at all). This happens 2 out of 5 times. What seems to be the problem? Thanks!

BTW, i'm using windows 7 Ultimate 64-bit.