User`s manual

2-8
X8DT6/X8DT6-F/X8DTE/X8DTE-F User's Manual
Memory Support
The X8DT6/X8DT6-F/X8DTE/X8DTE-F supports up to 192 GB of Registered ECC
or up to 48 GB of Unbuffered ECC/Non ECC DDR3 1333 MHz/1066 MHz/800 MHz
in 12 DIMMs. Please note that Memory Speed support is also depending on the
type of CPU used in the motherboard.
DIMM Module Population Confi guration
For memory to work properly, follow the tables below for memory installation.
Memory Population for Optimal Performance
-For a motherboard with One CPU (CPU1) installed
Branch 0 Branch 1 Branch 2
3 DIMMs P1 DIMM1A P1 DIMM2A P1 DIMM3A
6 DIMMs P1 DIMM1A P1 DIMM1B P1 DIMM2A P1 DIMM2B P1 DIMM3A P1 DIMM3B
Memory Population for Optimal Performance
-For a motherboard with One CPU (CPU2) installed
Branch 0 Branch 1 Branch 2
3 DIMMs P2 DIMM1A P2 DIMM2A P2 DIMM3A
6 DIMMs P2 DIMM1A P2 DIMM1B P2 DIMM2A P2 DIMM2B P2 DIMM3A P2 DIMM3B
Memory Population for Optimal Performance
-For a motherboard with Two CPUs installed
CPU1 CPU2
Branch 0 Branch 1 Branch 3 Branch 0 Branch 1 Branch 3
6 DIMMs 1A 2A 3A 1A 2A 3A
12
DIMMs
1A 1B 2A 2B 3A 3B 1A 1B 2A 2B 3A 3B
DIMM Population Table
DIMM
Slots per
Channel
DIMMs
Populated
per Channel
DIMM Type (Reg.=
Registered)
Speeds (in MHz) Ranks per DIMM
(any combination;
SR=Single Rank,
DR=Dual Rank,
QR=Quad Rank)
2 1 Reg. DDR3 ECC 800,1066,1333 SR or DR
2 1 Reg. DDR3 ECC 800,1066 QR
2 2 Reg. DDR3 ECC 800,1066 Mixing SR, DR
2 2 Reg. DDR3 ECC 800 Mixing SR, DR,QR