Got my Iwill XP333R today and have had it up now for about 2 hours. Was able to install it without trashing my RAID array too which was nice. Change over from VIA KT133A to the ALi MaGik 1 drivers was a breeze, having removed the VIA stuff prior to my last shut down.
Have to tell ya that these XP333R's ( rev. 2.1 ) are SWEET boards. I haven't really begun to tweak the thing yet but I'm able to run 1700 MHz stable as heck with an 1800+ cpu still locked for right now. Only 1.82v required too. Haven't tried higher but it doesn't seem to be even breaking a sweat. Some of the more prominent components are........
Iwill XP333R ( o/b RAID and sound disabled )
AMD 1800+ ( 1.53 @ 1.7, 1.82v, 11.5*148 FSB)
Dr. Thermal Ti-V77 70mm fan/hs, AS-II
Kingmax PC2700 (-05) DDR333 cas2
I'm extremely happy with this combo and if you're considering the XP333R, don't be afraid to jump in!