User's Manual

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Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware informationChapter 2: Hardware information
Chapter 2: Hardware information
2.4 System memory
2.4.12.4.1
2.4.12.4.1
2.4.1
OverviewOverview
OverviewOverview
Overview
The motherboard comes with eight 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:
2.4.22.4.2
2.4.22.4.2
2.4.2
Memory configurationsMemory configurations
Memory configurationsMemory configurations
Memory configurations
You may install 256 MB, 512 MB, 1 GB, 2 GB, and 4 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.
• This motherboard does not support memory modules made up of
128 MB chips or double-rank x16 memory modules.
• If you are installing only one memory module, install into the blue
socket labeled DIMM_00. Installing into any other socket will not
work.
®
DSBF-D Series
DSBF-D Series 240-pin FB-DIMM sockets
DIMM_01
DIMM_00
112 Pins128 Pins
DIMM_11
DIMM_10
DIMM_21
DIMM_20
DIMM_31
DIMM_30