I just got his board back from ASUS . I reinistalled it . Fan worked , it posted so I then installed HD, CD ROM . I start up again hd, CD by BIOS recognized but then got some strange error message saying something like no primary IDE 80 conductor cable recognized .and a boot failure . I tried again wiht another cable connecting hd only still got that message but the machine booted fine. I shut everything down ( and unplugged 120 v to ps of course) so could connect the CD . After doing so the machine will not start ,no fan no post, no boot,no beeps ( the green light mother board led is on when ps is turned on ) . BTW- Resetting the BIOS did not help . What could be wrong ? . I need some troubleshooting help please . - thanks