Supermicro SuperO X8DTL-3 User Manual page 30

X8DTL-3/X8DTL-i/X8DTL-3F/X8DTL-iF User's Manual
Memory Support
The X8DTL-3/-i/-3F/iF supports up to 24 GB Registered ECC DDR3 1333 MHz/1066
MHz/800 MHz in six DIMMs.
Note: Memory Speed support depends on the type(s) of CPU(s) used.
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
3 DIMMs P1-1A
Memory Population for Optimal Performance
-For a motherboard with One CPU (CPU2) installed
Branch 0
3 DIMMs P2-1A
Memory Population for Optimal Performance
-For a motherboard with Two CPUs installed
CPU1
Branch 0
6 DIMMs P1-1A
DIMM DIMMs
Slots per Populated
Channel per Channel
1 1
1 1
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 Table.)
(To Populate P1-DIMM slots)
Branch 1
P1-2A
(To Populate P2-DIMM slots)
Branch 1
P2-2A
(To populate P1-
DIMMs)
Branch 1 Branch 2 Branch 0
P1-2A P1-3A P2-1A
Memory Population Table
DIMM Type (Reg.= Speeds (in MHz)
Registered)
Reg. DDR3 ECC 800,1066,1333
Reg. DDR3 ECC 800,1066,
2-8
Branch 2
P1-3A
Branch 2
P2-3A
(To populate P2-
CPU2
DIMMs)
Branch 1 Branch 2
P2-2A P2-3A
Ranks per DIMM
(any combination;
SR=Single Rank,
DR=Dual Rank,
QR=Quad Rank)
SR, DR
QR