Help!

I Have an Acorp 6ZX Main Bord. I have bought a Katmai 500 (100MHz FSB). When I work with it under WinXP or Win2k my PC generates error – blue screen with the following text:
Hardware Malfunction
The Hardware is not working properly!
System Halted
When I work under Win98SE there are no problems. In my MB’s manual writes that it supports PIII 533. I have 128 Mb Ram (PC100), SB Live! Value and S3 Savage4 8Mb. What is the problem?