My KT7-RAID mobo locked up on me using both Win98SE and Win2000. I finally tracked the problem down to my video card (Intel 740 chipset) being incompatible with the mobo. Since my Voodoo2 wouldn't work with the latest drivers anyways, I bought a new video card (TNT2M64). I haven't had any problems since. After installing the Nvidia 5.32 drivers, I had to re-apply the VIA AGP driver because I couldn't change screen resolution.
I have an old ATA33 4.3GB Maxtor attached to the IDE0 controller. When I tried to move it over to the Highpoint interface, the drive started doing something weird. Whenver the system copied a big file over from a CD, the CD would stop reading, the drive light would be steady on for 10 seconds, stop for 2 seconds, and repeat the process again. I think that had something to due with having an old HD maybe?..
Good luck!