+ 0 Votes When you say 'there are no cards installed' robo_dev 2 years ago What about the riser board for the hard drives? (is yours a tower or rack-mount server?) Faulty or improperly installed expansion card or I/O board. Ensure that the expansion cards are properly installed. If the problem persists, replace the expansion card (see "Expansion Cards"). If the problem persists, replace the I/O board (see "Expansion-Card Insulator and I/O Board"). + 0 Votes Reponse To Answer robo_dev 2 years ago Well then it sounds like the problem is integrated into the mobo as well I would perhaps do a BIOS reset, but obviously that would not be possible if your keyboard input is not working either. Since I repair electronics, my approach would be to look for burnt components, bulging or leaking capacitors, all while surfing ebay for a replacement mobo. + 0 Votes No non-factory cards bhunter904 2 years ago The are no non-factory installed cards. Its a tower. The only card are the ones that are integrated into the motherboard.