Soltek KT-600-R and SP2

I always have problems installing sp2 from the scratch or as a repair in a previous stable Windows XP Installation. My system is stable without crashes only when i have the simple Windows pack. Is this motherboard suitable for sp2? I become crazy because i have this problems for over two years. How I can solve this? One of the messages I take always when for example run the antivirus is blue screen and STOP: 0x0000009c (0x00000000,8054DA70,0xC4104000) .
I ran the Microscope diagnostics 2000 and Winternals in order to see faults in memory and analyze the crashes but there is no way to find out whats going on. Please any help?
SOCKET A, AMD Athlon XP 2700+ 2167mhz,family 6 model 8,level 1, L1 cache :128kb,L2 cache:256kb, Memory 2x512 Twinmos
Radeon 9200 series