2.4System memory

2.4.1Overview

The motherboard comes with sixteen fully-buffered DIMM (FB-DIMM) sockets to support 240-pin FB-DIMM modules. An FB-DIMM module has a different pin-out from DDR2 DIMMs so you cannot install DDR2 DIMMs on an FB-DIMM socket. Note that an FB-DIMM socket has an Advanced Memory Buffer (AMB) chip that allows memory-to-CPU connection at gigabit speed.

The figure illustrates the location of the FB-DIMM sockets:

128 Pins

 

112 Pins

DSEB-D16 Series

240-pin FB-DIMM sockets

FB-DIMM_13

FB-DIMM_12

FB-DIMM_11

FB-DIMM_10

FB-DIMM_03

FB-DIMM_02

FB-DIMM_01

FB-DIMM_00

FB-DIMM_20

FB-DIMM_21

FB-DIMM_22

FB-DIMM_23

FB-DIMM_30

FB-DIMM_31

FB-DIMM_32

FB-DIMM_33

2.4.2Memory configurations

You may install 512 MB, 1 GB, 2 GB, 4 GB, and 8 GB registered ECC FB‑DIMMs into the DIMM sockets.

•For optimum compatibility, we recommend that you obtain memory modules from the same vendor. Refer to the Qualified Vendors List on the ASUS web site.

•The FB-DIMM 800 MHz has to work with the 1600MHz FSB CPU or above; otherwise the memory module downgrades and runs at the speed of

667MHz.

•If you are installing only one memory module, install into the white socket labeled DIMM_00. Installing into any other socket will not work.

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Chapter 2: Hardware information