Hello, I have a Abit-AN-M2HD mother board, with a Athlon 64x2 processor, I have the exact same motherboard up and running that I am using now.. I installed cpu fan, power supply is working fine, have reset cmos through pin and battery, have back fan and front fan both running fine, used both radon pciex card and nvidia getting no post and no signal to monitor, have tried onboard still no monitor, all fans, hard drive, DVD drives, lights come on work, fan on video cards turns everything seems to work except for no signal to monitor.. I am at a loss now as to what could be wrong. rechecked all connections, inserted ram in different slots, still no post or monitor signal, I know psu works because I took it out of my working computer 2 days ago when I upgraded my main. its a 550 psu.. I upgraded my main to a 750. Any suggestions would be greatly appreciated.. thanks..