User`s manual

2-8
X8DTH-6/X8DTH-6F/X8DTH-i/X8DTH-iF User's Manual
Note: Memory speed support depends on the CPU used on the moth-
erboard.
DIMM Module Population Con guration
For memory to work properly, follow the tables below for memory installation:
DIMM Population Table
DIMM
Slots per
Channel
DIMMs
Populated
per Channel
DIMM Type (FBD=
Fully Buffered)
Speeds (in MHz) Ranks per DIMM
(any combination;
SR=Single Rank,
DR=Dual Rank,
QR=Quad Rank)
2 1 FBD DDR3 ECC 1066,1333 SR, DR
2 1 FBD DDR3 ECC 1066 QR
2 2 FBD DDR3 ECC 1066,1333 SR, DR
2 2 FBD DDR3 ECC 1066 SR, DR, QR
UDIMM (Unbuffered DIMM) Population Table
DIMM
Slots per
Channel
DIMMs
Populated
per Channel
DIMM Type
(Unb.= Unbuffered)
Speeds (in
MHz)
Ranks per DIMM
(Mixing: any
combination;
SR=Single Rank,
DR=Dual Rank)
2 1 Unb. ECC/NON-ECC DDR3 800,1066,1333 SR or DR
2 2 Unb. ECC/NON-ECC DDR3 800,1066 Mixing SR, DR
Note 1: Due to OS limitations, some operating systems may not show
more than 4 GB of memory.
Note 2: Due to memory allocation to system devices, the amount of
memory that remains available for operational use will be reduced when
4 GB of RAM is used. The reduction in memory availability is dispropor-
tional. (See the following Memory Availability Table.)