4 pin cpu power problem
so today i got a new mobo (abit KN9 SLI), cpu (athlon x2 3800+) and ram (two 512 sticks of pc2 6400).
my problem is when i power on the computer it turns on for one second then turns off. but if i dont plug in the 4 pin cpu power connecter (2x2) the computer stays on but of course the cpu, hdd, cd drive, and floppy drive dont power up.
so my question is what could be causeing my computer to not boot up? i know my power supply is in good working condition and i know all the power cables are hooked up right too.