Asus P7F-M WS - Manual (Page 31)

ASUS P7F-M WS 2-13
2.4 System memory
2.4.1 Overview
The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory
Modules (DIMM) sockets.
A DDR3 module has the same physical dimensions as a DDR2 DIMM but is
notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules
are developed for better performance with less power consumption.
The figure illustrates the location of the DDR3 DIMM sockets:
2.4.2 Memory Configurations
You may install 1 GB, 2 GB, 4 GB, 8 GB Registerd, or 1 GB, 2 GB, 4 GB
Unbuffered with ECC/Non-ECC DDR3 DIMMs into the DIMM sockets using the
memory configurations in this section.
• Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules from the
same vendor. DO NOT combine RDIMM and UDIMM.
• The motherboard supports x8 DRAM Only and x4 & x16 DRAM are not
supported
RDIMM*
DIMM Slot
Per Channel
DIMM Populated
per Channel
DIMM Type Speed Rank per DIMM
2 1 Registered DDR3 ECC 1333 Single Rank, Dual Rank
2 1 Registered DDR3 ECC 1066 Quad Rank
2 2 Registered DDR3 ECC 1333 Single Rank, Dual Rank
2 2 Registered DDR3 ECC 800** Quad Rank
UDIMM
DIMM Slot
Per Channel
DIMM Populated
per Channel
DIMM Type Speed Rank per DIMM
2 1 Unbuffered DDR3 1333 Single Rank, Dual Rank
2 2 Unbuffered DDR3 1333 Single Rank, Dual Rank
*Support Low Voltage DIMMs; **Down from 1066 or 1333 MHz DIMM