I recently rendered a rather expensive Intel MB useless with a simple BIOS
call. Bought an el-cheepo Asus LGA775 something or other and used all the same stuff, memory, chip, drives - and fired right up to the old XP with no beefs at all.
For the curious one - the BIOS
change that stopped the Intel D945GNT board was simple - from Default memory settings to Aggressive, and NO OTHER changes at all- will not boot since...... will not reset BIOS