Hello everyone. Hopefully one of you clever people will be able to help me with this problem. I have just installed a new motherboard and processor and upon starting for the first time everything seemed to go fine. I then read in the manual that clearing the CMOS was recommended so I did as advised (moved the jumper to clear, waited, moved it back), but then upon switching the computer back on the monitor would refuse to come on (the computer would start checking the CD-roms drives, so I assume it is at least booting). I got a bit annoyed so I decided to see what would happen if I left the CMOS jumper set to 'clear' and, as it happens, everything started up perfectly and appears to be working fine. The questions I have are: What effect will having the CMOS set to clear have on my computer? What the hell is going on and how could it be rectified? Many thanks.