Hey guys, I just bought a bunch of parts to build my new pc. Unfortunately this is my first *real* time building a new computer from scratch. I know where most of the stuff goes but I ran across my problem the first time I tried to boot up.

After plugging in the power plug, I pushed the power button to try and boot up but was met with a long continuous beep. It was at a very low volume and appeared to be coming from the motherboard. Nothing showed up on the monitor.

At the moment, all I had plugged in was my keyboard (with a regular plug), my usb mouse, the power plug, and my monitor.

Parts Purchased For New Computer:
Thermaltake Purepower W0100RU ATX 12V 2.0 500W Power Supply
Intel Core 2 Quad Q6600 2.4GHz LGA 775 Model BX80562Q6600
GeForce 8800GT 512MB 256-bit
Corsair XMS2 1GB 240-pin DDR2 SDRAM DDR2 800 (2 of them)
GIGABYTE GA-P35-DS3L LGA 775 Intel P35 ATX All Solid Capacitor Intel Motherboard
Western Digital 500GB 16MB Cache 7200RPM SATA 300MB/s

Parts Pulled From Old Computer:
Sony CD Burner
Generic DVD-Rom