Whenever i press the power button, my computer turns on and all the fan starts to spin for 1 sec, turns off and turns on again! Sometimes it'll do it a few times maybe 2 times? Argh! Help me pls! Other than that, everything runs fine.

Here are my specs:
-Core 2 Duo 2.8 Ghz (now overclocked to 3.4 Ghz).
-2 HIS Radeon HD 4670 1GB DDR3 Graphics.
-4GB of fatal1ty RAM.
-Gigabyte EP45-UD3P.
-Hitachi 320 GB 7400 Rpm Hard drive.
-Samsung Optical Drive.
-Antec TruePower 550Watt Psu.
-Running Windows Vista 32 Bit

I assume it eventually starts up ok. Any beeps? Most mobos have a couple of lights on them. Are they lit? Have you tested the psu? Perhaps it's on its way out. Check all connections (you could have accidently brushed against something making it loose) are connected firmly. If that's not it I would disconnect one video card and see if everything is ok and if not take out all the ram except for one stick. Work your way back until you have only the mobo, one stick on ram, one video card and the psu. Good luck and please come back and tell us how you make out with the problem.

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EVGA 650i mobo with Intel e8400 Core 2 Duo
4 gigs OCZ 800 ddr2 ram and 160 gig sata hard drive
EVGA GTS 250 SC - Windows 7
See my test at http://www.pcpitstop.com/betapit/sec.asp?conid=23014579

Yay its working fine now
I un-plugged all the connectors and plug all of them back again, turned out that it was due to something not plugged in properly i guess.
Thx for your reply!

Your welcome. Glad it worked out well for you.

__________________
EVGA 650i mobo with Intel e8400 Core 2 Duo
4 gigs OCZ 800 ddr2 ram and 160 gig sata hard drive
EVGA GTS 250 SC - Windows 7
See my test at http://www.pcpitstop.com/betapit/sec.asp?conid=23014579