2.4.2Memory configurations

You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered ECC/non-ECC DDR2 DIMMs into the DIMM sockets.

• For dual-channel configuration, the total size of memory module(s) installed per channel must be the same (DIMM_A1+ DIMM_B1 = DIMM_A2+ DIMM_B2)

•Always install DIMMs with the same CAS latency. For optimum compatibility, we recommend that you obtain memory modules from the same vendor. Refer to the DDR2 Qualified Vendors List below for details.

•Due to chipset resource allocation, the system may detect less than 8 GB system memory when you installed four 2 GB DDR2 memory modules.

Recommended memory configurations

 

 

Sockets

 

 

M o d e

DIMM_A1

DIMM _ B1

DIMM _ A2

DIMM _ B2

Single-channel

–

Populated

–

–

 

Populated

–

–

–

 

Dual-channel(1)

Populated

Populated

–

–

Dual-channel(2)

Populated

Populated

Populated

Populated

 

 

 

 

 

 

*Use only identical DDR2 DIMM pairs.

*For dual-channel configuration (2), you may:

•install identical DIMMs in all four sockets

OR

•install identical DIMM pair in DIMM_A1 and DIMM_B1 (yellow sockets) and another identical DIMM pair in DIMM_A2 and DIMM_B2 (black sockets)

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Chapter 2: Hardware information