Installed the Abit KT7A, with two IBM 75GXP 45GB drives on the RAID-0. AMD 1GHz Thunderbird. Using the 3dfx V5500, running on W2K, with 256MB Mushkin Rev.2 memory. Using the latest Via chipset drivers 4.28, including IDE. Installed the latest Highpoint drivers (the 3b ones, I think).
Before upgrade, I was running one of the IBM drives on the MSI Pro-2A. Upgraded to get the RAID and 133FSB. Required complete reinstall of everything. Sandra scores on the IBM drive was roughly 22000 (writing this from work - numbers are at home). Also ran memory benchmarks, but all I can recall specifically is that performance is faster on the Abit. I can post some numbers when I get home...
Disk performance on the RAID-0 are now ~44000 on the C: partition (10GB) and ~38000 - ~41000 on the 80GB partition. I have a 72x CD-ROM, backup hard disk, and a CD-RW using IDE-1 and -2. Performance on the CD-ROM isn't great. For me, that is my primary performance concern.
Overclocking is also tough, but about the same if not a tad worse than the MSI board. I am running at 1150 stable, and can post at 1200 (10 x 120 FSB), CPU is not unlocked even though I tried to. Will check the graffite tonight.) but PC spontaneously reboots, even with volts at 1.8. CPU temps are within normal range.
So, overall, my RAID-0 is more than acceptable, and with overclocking, as small as it is, the system is a great performer. UT at 1600x1200 with 50-60FPS (Glide) isn't bad at all!