Asus I220GC - Manual (Page 20)

1-8 Chapter 1: Product introduction
1.7 System memory
1.7.1 Overview
The motherboard comes with two 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:
I220GC
R
I220GC 240-pin DDR2 DIMM Sockets
128 Pins
112 Pins
DIMMB1 DIMMA1
Channel Sockets
Channel A DIMM_A1
Channel B DIMM_B1