All fans running, computer works with an APU but when there is a CPU and GPU the monitor gets no signal.

JBlue77

Honorable
Jan 5, 2014
5
0
10,510
My specs are
MOBO: MSI MS-7778 (Just installed the new AMD drivers from HP support website)
CPU: X4 750k
GPU: Sapphire Radeon 7870 GHZ (Originally believing the card was DOA this is my second card)
PSU: Corsair CX600
RAM: 6GB Mushkin generic ram
SSD: Kingston Hyperx 120gb
HDD: Western Digital 1TB Caviar Blue
Stock Cooler
OS: Windows 8.1

Originally when I would boot the computer there would be six POST beeps, however the AMD driver fixed that problem.

Currently all fans spin on the build when booted, there aren't any POST beeps and yet there is no signal to the monitor. I have tried DVI and HDMI, but neither work. I have checked cables and reseated everything many times, with no avail. I have tried booting with one ram stick installed, but no matter what I do with a GPU inserted the build refuses to display. I know the rest of the components are working because the system boots perfectly fine with the APU (A6-5400k).
I have tried all the tricks: Reseating components, resetting CMOS, unplugging and re plugging all the cables.

I'm at a loss and simply have run out of ideas to try.
Any help is greatly appreciated
Thank You