Troubleshooting
How to replace the motherboard on a computer that is running Win2003, WinXP, or Win2000
New motherboard won't power up? README. provided by: BipolarBill
Motherboard identification provided by: fishybawb
List of Beep codes for your help provided by: CrazyCrusher

BIOS
Excellent Bios Site! provided by: Baddog
Do not enable antivirus in BIOS setup! provided by: BipolarBill

Memory
Why doesn't my Windows PC recognize the whole 4GB of memory I installed?
The system memory that is reported in the System Information dialog box in Windows Vista is less than you expect if 4 GB of RAM is installed
Corsair Memory Basics
Exploring the Performance Impact of Memory Latency (Is CAS2-2-2-5-1T really worth it?)
How Much RAM Do You Really Need? - THG
ECC - Error Correcting Ram