Asus PK5C 2.4.1Overview, DDR3 module installation, DDR2 module installation, 2.4System memory, Channel, Sockets, Channel, Sockets, P5KC 240-pinDDR3/DDR2 DIMM sockets

2.4System memory

2.4.1Overview

The motherboard comes with two Double Data Rate 3 (DDR3) and four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets.

A DDR3 module has the same physical dimensions as a DDR2/DDR DIMM but is notched differently to prevent installation on a DDR2/DDR DIMM socket, while a DDR3/DDR2 module has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR3 modules are developed for better performance with less power consumption. The figure illustrates the location of the DDR3/DDR2 DIMM sockets:

DDR2 A1 DDR2 A2 DDR3 A1 DDR2 B1 DDR2 B2 DDR3 B1

P5KC

P5KC 240-pin DDR3/DDR2 DIMM sockets

DDR3 module installation

Channel	Sockets
Channel A	DDR3_DIMM_A1
Channel B	DDR3_DIMM_B1

DDR2 module installation

Channel	Sockets
Channel A	DIMM_A1 and DIMM_A2
Channel B	DIMM_B1 and DIMM_B2

You can only install either DDR2 module(s) or DDR3 module(s) on the motherboard; otherwise, the system will not boot up.

2-14 Chapter 2: Hardware information