I just upgraded my computer to a Intel Petiuim 4 630 775 LGA socket with a gigabyte GA-8I945P-G motherboard and a Radeon X1800 Pro XT graphics card new ram(two PNY-512 modules) and new powersupply(MasterPower 530W). This is the problem on start-up all fans are on the mouse is on(optical light on) the keyboard does not respond(no num-lock or caps lock) nothing on the display. The motherboard should send out a beep to let you know that it started up ok. but no beep. I called tech-support to get help, they had me pull out the memory to see if I could force the motherboard tg fail. When I did so there was a long beeping sound indicating motherboard recognized start-up problems. After thinking while at work, I was wondering why everything else is getting power but not the keyboard has anybody had this happen???? Is it a problem with the ps2 hook-up????? Could it possibly be a keyboard-motherboard incompatibilty problem, I have an AOpen keyboard. I would greatly appreciate any help.