Asus PQ5C Computer Hardware User Manual


 
ASUS P5QC 2-11
2.4 System memory
2.4.1 Overview
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 gure illustrates the location of the DDR3/DDR2 DIMM sockets:
Channel Sockets
Channel A DIMM_A1 and DIMM_A2
Channel B DIMM_B1 and DIMM_B2
DDR3 module installation
DDR2 module installation
You can only install either DDR2 module(s) or DDR3 module(s) on the
motherboard; otherwise, the system will not boot up.
DDR2 1066MHz DIMMs work only on the black slots for one DIMM per
channel. Ensure to install the DDR2 1066MHz DIMMs ONLY on the BLACK
slots!
Channel Sockets
Channel A DDR3_DIMM_A1
Channel B DDR3_DIMM_B1