Asus EPU manual System memory, Overview

2.4System memory

2.4.1Overview

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:

P5K/EPU
DIMM A1 DIMM A2	DIMM B1 DIMM B2

P5K/EPU 240-pin DDR2 DIMM sockets

ChannelSockets

Channel A	DIMM_A1 and DIMM_A2
Channel B	DIMM_B1 and DIMM_B2

•This chipset officially supports DDR2-800 MHz. With the ASUS Super

Memspeed Technology, this motherboard natively supports up to

DDR2-1066 MHz and provides more ratio setting items than the chipset officially supports. See the table below.

FSB	DDR2
1333	1066*
1333	800
1333	667
1066	1066*
1066	800
1066	667

•*If you install a DDR2-1066 memory module, make sure that you set the DRAM Frequency item in BIOS to [DDR2-1066MHz]. See section 4.4.1

Jumperfree Configuration for details.

ASUS P5K/EPU 2-13