here's my motherboard.... http://www.asus.com.tw/mb/socketa/a7m266/overview.htm

here's the memory stick i wanna get.... will it fit?? http://www.bestbuy.com/site/olspage....9&type=product

here's a similiar memory stick.... one is DDR32X64PC2100, one is DDR32X72RPC2100... wat's the difference?? wat does the 64 and 72 represent?
http://www.bestbuy.com/site/olspage....9&type=product