I have connected everything propperly and double checked. When booting with the evga 7800 geforce i get a countinuous loud beeping noise and notice that the cpu is heating up (105 degrees). I can get the computer to boot up with the onboard graphics card. I am going to try flashing the bios using the onboard graphics card. Any other ideas would be appreciated. It does not make the loud niose when i remove the video card so it has to be the video card... specs are ecs elite group p4m800pro-m core duo 925 intel 3.0 ghz 1.5gigs ddr400 maxtrix 40 gig hard drives evga geforce 7800 agp 8x help!!