Asus AP2400R-E2(AS8) User Manual

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A S U S A P 2 4 0 0 R - E 2

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2.3

System memory

The motherboard comes with eight Double Data Rate (DDR) Dual Inline
Memory Module (DIMM) sockets. These sockets support up to 16GB system
memory using 2.5V 184-pin registered ECC PC2700 DDR DIMMs.

2.3.1

Memory configurations

You may install 256 MB, 512 MB, 1 GB, and 2 GB registered ECC DDR
DIMMs into the DIMM sockets.

NCL-DS1R2

DIMM_A1

DIMM_B1

NCL-DS1R2 184-pin DDR DIMM sockets

DIMM_A2

DIMM_B2

DIMM_A3

DIMM_B3

DIMM_A4

DIMM_B4

80 Pins

104 Pins

•

Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules
from the same vendor. Refer to the DDR Qualified Vendors List at
the ASUS web site.

•

Due to chipset resource allocation, the system may detect less than 16 GB
system memory when you installed eight 2 GB DDR memory modules.

•

This motherboard does not support memory modules made up of
128 Mb chips or 256 MB double-rank x16 memory modules.

•

Do not install double-rank and single-rank memory modules at the
same time.

•

The server motherboard does not support installation of three or
five memory modules.

•

If you are installing only one memory module, install into the blue socket
labeled DIMM_B4. Installing into any other socket would not work.

M o d e

DIMM_B4

DIMM_B4 DIMM_A4

DIMM_A4

DIMM_A4 DIMM_B3

DIMM_B3

DIMM_B3 DIMM_A3

DIMM_A3

DIMM_A3 DIMM_B2

DIMM_B2

DIMM_B2 DIMM_A2

DIMM_A2

DIMM_A2 DIMM_B1

DIMM_B1

DIMM_B1 DIMM_A1

DIMM_A1

Single-channel*

Dual-channel

Populated with DIMM

Install only one memory module for single-channel memory configuration.