XFX Radeon 7770 No signal

Leo Dragons

Honorable
Mar 13, 2013
18
0
10,510
Hi everyone, today i received my new XFX Radeon 7770 Core Edition. I installed it, plugged the 6pin conector to the video card, and tried to boot the pc. But the monitor says there's no signal, the keyboard lights come up, mouse too, fans and hdds spin. I switched the monitor cable to a different port (thinking that one could be faulty) but i got the same results, what could be failing on my system?

Sistem Specs:
AMD FX-8120
Gigabyte 970A-UD3
4GB DDR3 1333mhz Kingston
XFX Radeon HD 7770 Core Edition
Samsung HD322HJ 320GB
Samsung HD80HG 80GB
OEM Samsung DVD Recorder
600W Generic PSU
 

jagdtiger12cm

Honorable
Dec 9, 2012
86
0
10,640
Hmmm... Very hard to say what's wrong. First thing in my mind is different port. HD 7770 has PCI Express 3.0 x16 bus interface while ur motherboard has 2.0. But still, it should work in most cases. Maybe u forgot to turn off your integrated GPU if you have it? Try plug cable to all connnectors on your GPU. My opinion.