"This motherboard was basically a K7M motherboard with the new KX133 chip, AGP 4x support and PC133 SDRAM support. The board was larger in size but no additional features were added. When AMD released the Slot A Thunderbirds ASUS went back to the drawing boards and once again added some new traces and resistors to the K7V to accommodate the new Slot A Thunderbird that on just about every other KX133 motherboard would not run above 750MHz due to the timing issues with the Thunderbird and the KX133 chipset. The instants that VIA released the KT133 chipset for Socket A CPU's ASUS immediately started work on the new motherboard for the Socket A market, enter the A7V."
FULL STORY @ TWEAKTOWN (http://www.tweaktown.com/reviews/asus_a7v/)