My video card is not working right.

ktmriki

Reputable
Sep 2, 2014
5
0
4,510
When I start my PC, there is no display, and the card sounds like it's constantly restarting, because the fans on it start up, then slow down, and almlst stop, but then start up again. And it does this process till I turn off the comp.
What could be the problem?
Board: Asus M4A77T
CPU: Amd Athlon II X3
Video Card: Sapphire Radeon HD7770 Vapor-X OC
HDD: Samsung HD502J
SSD: Samsung 840 EVO
Windows 7 64bit
FSP Group 400W psu