4 system memory, 1 overview, System memory -13 2.4.1 – Asus P5K/EPU User Manual
Page 37: Overview -13

ASUS P5K/EPU
2-13
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:
P5K/EP
U
®
P5K/EPU 240-pin DDR2 DIMM sockets
DIMM_A2
DIMM_A1
DIMM_B2
DIMM_B1
FSB
DDR2
1333
1066*
1333
800
1333
667
1066
1066*
1066
800
1066
667
• 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.
• *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.
Channel
Sockets
Channel A
DIMM_A1 and DIMM_A2
Channel B
DIMM_B1 and DIMM_B2