Asus M2N68-AM SE - Manual (Page 12)

1.3 Central Processing Unit (CPU)
This motherboard comes with a 940-pin AM2 socket designed for AMD ® Phenom™FX /
Phenom™ / Athlon™ / Sempron™ processors.
The AM2 socket has a different pinout from the 940-pin socket designed for the
AMD Opteron™ processor. Ensure that you use a CPU that is designed for the AM2 socket.
The CPU fits in only one correct orientation. DO NOT force the CPU into the socket to
prevent bending the pins and damaging the CPU!
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
M2N68-AM SE
M2N68-AM SE 240-pin DDR2 DIMM sockets
DIMM_A1 DIMM_B1
1.4.2 Memory configurations
You may install 256MB, 512MB, 1GB, and 2GB unbuffered non-ECC DDR2 DIMMs into the
DIMM sockets.
Chapter 1: Product introduction 1-3