The Abit KA7. Yes, a slot A. There was a moderate teething period as Abit perfected the BIOS, and at first not all ram worked with this board (ahh the good old days). Then last spring I started getting mysterious system hangs and startup problems. Seems Abit got a batch of bad capacitors, after a year they wouldn't hold a charge correctly, then they started ozzing black goop. But Abit is a stand up company, they replaced the board for free with no hassles. With the new KA7 board I almost have enough spare parts for a second computer.