Computer Won't Power On

[Thawk]

This morning my computer won't power on. I can see that the motherboard is getting power for a light that comes on but nothing is happening. I'll post my specs with I can put them together for you. What are the possible problems here?

There has been a randomly occuring problem that I was not able to diagnose. About every 10th time I would power up the computer it would not load the graphics card I think (the screen would stay blank) and give me 3 system beeps. I would power it off and back on and start it again and it would load up fine.

My sys
ASUS P5N32-SLI Premium/WiFi-AP
Intel Core 2 Duo E6600 Conroe 2.4GHz
CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit
Leadtek WinFast PX8800 GTS TDH GeForce 8800GTS 640MB
Creative Sound Blaster X-Fi XtremeGamer
Seagate Barracuda 7200.10 ST3320620AS 320GB 7200 RPM
Running Windows XP Pro

 

[Thawk]

Did some searching and found the writeup on testing the PSU by jumping it with a paper clip. The article was well written except it didn't give you an expected result. I assume the PSU should come on in this situation. My PSU is not powering on. I am assuming that it's bad and I'll pick up another at Fry's this morning. Hopefully that will resolve the problem.

My PSU is Antec Neo 480w

 

[phdchristmas]

If problem still persists after swapping the psu, try swapping the video card with a working one.

problem still persists it might be the dual channel memory.

Report back here if its not the video card or the psu.

 

[Ausm]

Are you overclocking anything on this system?