Sorry, I wasn't sure what to blame the motherboard or the cpu

To make things clear the original board that was running slow with xp was a
PC266 m810 series motherboard with the 1 ghz amd cpu I am not sure iif it was the Athalon or the duron but I beliave it was the Athalon

The current board that xp is crashing with is a SOYO SYK7VME motherboard with an AMD Athalon xp 2600 cpu that is running at 2 ghz

I did not swap cpu's from one board to another I only swapped the motherboard and cpu as a set with the other set