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2.4 System memory
2.4.1 Overview
The motherboard comes with six 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 gure illustrates the location of the DDR3 DIMM sockets:
Channel Sockets
Channel A DIMM_A1 and DIMM_A2
Channel B DIMM_B1 and DIMM_B2
Channel C DIMM_C1 and DIMM_C2
Recommended memory conguration for better performance
Mode
Sockets
DIMM_A2 DIMM_A1 DIMM_B2 DIMM_B1 DIMM_C2 DIMM_C1
2 DIMMs - Populated - Populated - -
3 DIMMs - Populated - Populated - Populated
4 DIMMs Populated Populated - Populated - Populated
6 DIMMs Populated Populated Populated Populated Populated Populated
Due to Intel CPU spec denition, the system will not boot if only one DIMM is
installed in DIMM slot A2, B2, or C2. Follow the table above for recommended
memory conguration.
2-12 Chapter 2: Hardware information