I just built a computer for my parents and when I turn it on I have power to the fans, but nothing comes up on screen. I don't get any beeps an I have removed the RAM and reset the BIOS. The power supply is from another computer, but it was working fine last time i used it roughly 5 months ago.
CPU: PENTIUM D SL9QB 945 3.40 GHz 800MHz 4MB LGA775 (New from E-bay)
RAM: 2X1GB PC2-6400 800MHz DDR2 (Also new from E-bay)
HDD: 100 GB total (60GB Master & 40GB Slave. Both were hardrives used in previous computers and are running XP home)
did you plug in the 4 pin atx power plug?? next to the cpu...if you did try pulling the mb out of the case to see if the mb is shorted to the case. if the mb is used check to see that the cmos jumper is in the right spot on the mb.