Shuttle SB61G2 and DDR 400 Memory Hang

Google Search: shuttle sb61g2 problem. It took forever to figure out this problem becuase the answers are in a newsgroup and not yet indexed on the web. In short, when I assembled my Dad's PC, I kept getting hangs when running at full 200MHz for the CPU. Turns out there is a problem with the Intel i865G chipset and DDR400 modules. They can't handle a short RAS to CAS delay (this is memory timing thing). You have to change the BIOS setting from 2 to 3 cycles. A voila it works. Aamzing what you have to know to get this to work.