Asus M4A79 Deluxe - Manual (Page 30)

2-10 Chapter 2: Hardware information
Chapter 2
2.4 System memory
2.4.1 Overview
The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules
(DIMM) sockets.
A DDR2 module 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: