asus a8n-vm csm/nbp 939 socket
amd opteron 170
current drivers for winxp
downloaded nbp vista x32 drivers from nvidia.com
2 sticks 512mb ddr400 ocz ram
2 raptor 36gb sata-1 drives raid 0
nvidia replied that the board is compatible as is.
asus forums users say 'csm/nbp' incompatible as is but 'csm' version compatible.
uninstalled winxp drivers and then installed vista drivers then rebooted, no initial probs but vista video drivers were incompatible under winxp.
installed sata / raid drivers for vista during vista upgrade installation at winxp desktop.
vista gathered files and then rebooted and again asci characters and no bootup.