Ive got a red vcc light on Abit IS7-E2 motherboard, ive got power to the graphics card cos the fan on the graphics card is spinning, i power up the computer the monitor tries to switch on but goes back to standby, does this twice and then i get a beep lasting 5 seconds, dont know what is wrong, ive fitted well over 100 motherboards in my time never come across this problem before any help .