Recently, I've been building a new PC, and I finally managed to get it together. The moment I switched it on however, it started correctly before promptly giving two short POST beeps. No signal is outputted to the screen, and it restarts after a few seconds before continuing ad infinitum. I've tried resetting the CMOS as well as replacing the battery, to no avail. I have put the RAM in all possible slots, with no real effect. I have tried re-cabling it, but nothing is really working.
I'll post the specs, and I'm trying desperately not to have to RMA the motherboard.
MoBo - GA-Z77-D3H
CPU - Intel i7 3770
GPU - Gigabyte GTX 660
RAM - 1x 4GB DDR3 stick
PSU - Sumvision 800W
Thanks in advance!