It looks like you are using some hardware that does not have support for Windows XP.
http://www.soyousa.com/downloads/sel...= 80&col3=All
Here is a link to Soyo's site, and the last drivers they have listed for the adaptec aic-7890ab were released on 1999-12-06.
Even the last BIOS was released on 2000-10-02.
Only thing to try would be to get the BIOS upgrade, if you already do not. Other than that, you are probably S.O.L.