Can someone help troubleshoot my GA-SQ800 mobo?

[lchyi]

Hey, I just put together a pretty nice computer, here are my parts:
Intel P4 2.66ghz 512k
Gigabyte GA-SQ800
(2x) Kingston Hyper-X cas2 512mb
Lite-On DVD
Lite-On CD-RW
Western Digital 80gb 8mb cache
Gainward GeForce3 Ti200 Golden Sample

All inside a:
Enermax CS-317 Silver (the one with rainbow lights) with a 350watt PSU built in

Okay here's my problem. When I go to plug in the computer and the monitor, the fans come on, the LEDs come on, hard drive, CD-RW/DVD, everything electronic, however, it doesn't give any system beeps (I'm positive the beep jumper is correct, I tested it both front and back) and nothing appears on the screen at all. The CD/DVD are flashing consistently and there is a constant hard drive movement (very small). Anyway, with my processor working (it was warm so I know it was working), my hard drive working, and everything else, I'm thinking it's the motherboard. If this is a problem, what should I do? It doesn't say in the instructions how to reset the CMOS or flash the BIOS without turning on the computer. It's so frustrating when you spend about 2 hours building the sucker then spend six hours troubleshooting. Anyway, thanks if anyone can help.

 

[o1die]

You may have to remove the mobo battery to clear the cmos. Try that first, and if it doesn't work, try removing the board and placing it on a box or anti static bag, with just the cpu/heatsink, video card, and one stick of memory, and see if will post.