hello i just rebuilt my pc after i received a replacemant for my defective motherboard. Before the RMA the graphics card worked wonderfully but now when i turn on the pc all the motherboard lights turn on and hard drives spin but my monitor just says "no signal" i have tried using the dvi port as well and have tested on two different monitors both with dvi and vga capabilities. There is no display whatsoever as if there was no video output at all. Any help on at least diagnosing the problem would be appreciated.
Amd Phenom II 965 Black Edition @ 3.4 ghz
Msi am3+ 970 g46
8x1 gb g.skill @ 1600 mhz
western digital blue 160 gb 7200 rpm hd
External 150 gb seagate hdd
xfx radeon hd 5450 1gb
tested on a polaroid 900t and olevia lt27hvx monitors