I bought the Giga GA-7VRXP based on the Tomshardware.com review. This board runs great, and I like the features and the price. And it is an AMD approved motherboard for Athlon XP 1500XP -2100XP with WinXP.
I am running AMD approved power supply and memory. And I am starting to see that getting all AMD approved components is a smart move, for a stable and trouble free system.
These new VIA KT333 chipset boards do seem be a bit fussier about running Win XP and GeForce 4 graphics cards...especially the power hungry Ti400, Ti4400, Ti4600 N25 GPU cards.
Top quality AMD approved PC2700 or PC3000 DDR RAM and an AMD approved 400W + power supply....the latest revision board, BIOS, and drivers.... all may help to make system perform optimally.
Memory timing may have to tested, starting with less aggressive timings. Vcore , DDR, and AGP voltage may have to be raised in BIOS ,and tested.
The other good KT333 boards seem to be the ASUS, MSI, and EPOX... and the Soyo and Abit may be worth looking at.
My mobo list of products would be from Gigabyte, Asus, Epox, and MSI.
Power supply from Antec and Enermax.
DDR333 RAM would be Samsung original PX2700 and Corsair XMS PC3000.
GeForce4 card list of companies would be Gainward, MSI, Leadtek.
I am starting to believe that all these new products are fantastic value, and offer the best PC performance yet! But they are sometimes fussy, and there is a noticeable quality control issue/ defective product problem.
Whichever brand or system you go with , don't hesitate to test for defects. Don't waste time with a system that doesn't run well out of the box, or soon after...get RMA's and return it for a good board, RAM, or card.
http://www.newegg.com seems to be one of the higher quality top rated on line vendors.