Ok I have been having the worst luck ever with my computer I had a HP computer that I bought from office max that was good to me but I wanted 3 screens running so I bought a IGABYTE GV-R687OC-1GD Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity from newegg it worked for a while then all of a sudden it would freeze then when I restarted the computer I could not get any video signal even if I plugged into the motherboard video. I thought it was because I didnt have a big enough power supply so I got a 600w power supply the graphics card said it needed only a 500w power supply still no help so I thought mabey it was crappy hp machine so I made a custom computer then installed the same graphics card and everything worked for 20 min and then the same thing happened again now I had to reset the bios to get the onboard graphics for the custom computer but now it wont load into windows I dont know whats going on
also I finally reset the bios on the custom computer waited 30 min and the video came back up but it wont boot into windows then I restarted it again and now no video I never even put the card back into the machine