Help!!! I somehow made it impossible to use a PCI Express card on my\nASUS A8N-Sli motherboard. This is what I did. I put a Diamond Supramax\nPCI modem card in the bottom PCI slot on my motherboard. This modem had\nbeen working in another computer. But now it caused the system to crash\nand when I tried to reboot, my ATI X1800 XL video card would not post.\nThere was a long beep and the audible message: System failed VGA test.\nThis kept occurring even after I took out the modem card!!\n\nSince I couldn't get into the BIOS I put an old PCI video card in one\nof the PCI slots and it booted up fine. Then I tried to go into BIOS\nand find out what might be wrong. I tried a couple of things, like\nmaking my PCI Express the primary boot and choosing Single video card\nbut nothing works. I went into system to see if there was an Interrupt\nconflict but couldn't see anything wrong there either. Does anyone have\na suggestion?