nvmax.com has posted a review on the ASUS K7M266D Athlon Mainboard.

I was watching and waiting just for the perfect motherboard, but due to delays with AMD's MP chipset (766 Southbridge), the wait was long. I then started hearing about the redesigned chipset called the MPX (768 Southbridge). The MP supports (2) 64bit/33mhz (5 volt) slots while the MPX supports (2) 64bit/66Mhz (3.3 volt) slots and an AC'97 codec. Both support
(3) 32Bit/33Mhz slots.

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