2.4System memory

2.4.1Overview

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:

128 Pins

 

112 Pins

DIMM_31

DIMM_30

DIMM_21

DIMM_20

DIMM_11

DIMM_10

DIMM_01

DIMM_00

DSEB-DG Series 240-pin FB-DIMM sockets

2-16

Chapter 2: Hardware information