Chapter 2: Hardware setup
2-10
2.3
System memory
2.3.1
Overview
The motherboard features eight fully-buffered DIMM (FB-DIMM) sockets to support
240-pin FB-DIMM modules. You can purchase extra FB-DIMM modules based on
your needs. 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:
®
DSEB-DG/SAS/RS160-S5 240-pin FB-DIMM sockets
DIMM_11
DIMM_10
112 Pins
128 Pins
DIMM_21
DIMM_20
DIMM_31
DIMM_30
DIMM_01
DIMM_00
Rank population
DIMM 21
DIMM 20
DIMM 1
1
DIMM 10
DIMM 01
DIMM 00
Channel
Slot 0
Slot 1
MCH
DIMM 31
DIMM 30
Slot 0
Slot 1
Slot 0
Slot 1
Slot 0
Slot 1
Ch:0
Ch:1
Ch:2
Ch:3