So you are getting a blank screen? Is your computer beeping?
I can't find this motherboard on the ASUS website but a P5GL-MX:
No my computer is not bleeping, even if l remove the memory there are no bleeps, it cannot turn on the monitor coz the signal button for the monitor is blinking meaning it is not getting any signal.
thanx for the MX l already hev that one and its not very helpfull