I just upgraded my video card from an Gigabyte GT220 to an Sapphire HD5670.
When I first pluged the video card, it booted but after Windows 8 LogIn screen my monitor went black, showing an "No Video Signal" Message. I restarted my PC, I passed the LogIn screen and I thought it was fixed, but the same problem appeared again when I was downloading the drivers for it. I restarted my PC again, but this time the screen is black. Nothing shows(Except the "No Video Signal" at start for 3-4 seconds).
When I plug my old GT220 everything works fine.
Before I pluged the HD5670 I made sure I uninstaled my old drivers.
I also reinstaled Windows 8, but the problem wasnt fixed.
Note: I got the card from a friend, because he got a better one now, and on his PC works fine.
My guess is that it has an compatibility issue, but Im not sure. My specs are:
**Intel Pentium 4 631 HT 3.00GHz
**ASRock G31M-S R2.0 Mobo
**2 GB Ram
**"No Name" 440W PSU
What is wrong with it?
Can you help me deal with it?
this might sound stupid, but I would put my money on the power supply. a lot of times with no drivers, the card runs at its max power, even though its not a lot of draw, that card only draws about 60 watts under full load. Do you have another power supply or another computer to test it in? I hate to have to spend money to trouble shoot a problem.