Asus M2N68-AM SE2 - Manual (Page 12)

1.3 Central Processing Unit (CPU)
This motherboard comes with a 940-pin AM2+ / AM2 socket designed for AMD ® Phenom™FX
/ Phenom™ / Athlon™ / Sempron™ processors.
The AM2+ / AM2 socket has a different pinout from the 940-pin socket designed for the
AMD Opteron™ processor. Use a CPU that is designed for the AM2+ / AM2 socket.
1.4 System memory
1.4.1 Overview
This motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules
(DIMM) sockets. A DDR2 DIMM has the same physical dimensions as a DDR DIMM but
has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched
differently to prevent installation on a DDR DIMM socket.The figure illustrates the location of
the DDR2 DIMM sockets:
Channel Sockets
Channel A DIMM_A1
Channel B DIMM_B1
Chapter 1: Product introduction 1-3