when i start my pc the boot screen will appear on the monitor but after that it go's black. i can hit one of the f keys to take me to the boot page or diagnostics page but when i change the boot path and hit save then enter it just go's back to the black screen i have also hit the f9 key to go to the diagnostics page and ran the on board hp diagnostics tool which says everything has passed when i try to go back the screen go's black again! at first i thought it was a graphics card issue so i replaced the old one with a new one same thing, i also tried plugging into the three different slots on the graphics card i started with the dvi slot with an adapter on my cable it will not even show the boot page it just go's strait to no signal so i switched to the VGA slot that's were i can get to the boot screen, last i tried the hdmi port and again i can get to the boot screen but then it go's black i removed the ram and cleaned it, and was going to try and go strait from the mother board to the monitor but i got scared when i saw the black cap with the words DO NOT REMOVE on it! i have tried 2 different monitors just to eliminate that probability but now I'm just lost any ideas would be appreciated!
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