2-8
X8DAH+/X8DAH+-F User's Manual
Memory Support
The X8DAH+/X8DAH+-F supports up to 144 GB Registered ECC DDR3 1333
MHz/1066 MHz/800 MHz in 18 DIMMs.
Note:
Memory speed support depends on the type of CPU 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
(To Populate P1-DIMM slots)
Branch 0
Branch 1
Branch 2
3 DIMMs
P1-1A
P1-2A
P1-3A
6 DIMMs
P1-1A
P1-1B
P1-2A
P1-2B
P1-3A
P1-3B
9 DIMMs
P1-1A
P1-1B
P1-1C
P1-2A
P1-2B
P1-2C
P1-3A
P1-3B
P1-3C
Memory Population for Optimal Performance
-For a motherboard with One CPU (CPU2) installed
(To Populate P2-DIMM slots)
Branch 0
Branch 1
Branch 2
3 DIMMs
P2-1A
P2-2A
P2-3A
6 DIMMs
P2-1A
P2-1B
P2-2A
P2-2B
P2-3A
P2-3B
9 DIMMs
P2-1A
P2-1B
P2-1C
P2-2A
P2-2B
P2-2C
P2-3A
P2-3B
P2-3C
Memory Population for Optimal Performance
-For a motherboard with Two CPUs installed
CPU1
(To populate P1-DIMMs)
CPU2
(To populate P2-DIMMs)
Branch 0
Branch 1
Branch 2
Branch 0
Branch 1
Branch 2
6
DIMMs
1A
2A
3A
1A
2A
3A
12
DIMMs
1A
1B
2A
2B
3A
3B
1A
1B
2A
2B
3A
3B
18
DIMMs
1A
1B
1C
2A
2B
2C
3A
3B
3C
1A
1B
1C
2A
2B
2C
3A
3B
3C
Memory 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)
3
1
Reg. DDR3 ECC
800,1066,1333
SR, DR
3
1
Reg. DDR3 ECC
800,1066
QR
3
2
Reg. DDR3 ECC
800,1066
SR, DR
3
2
Reg. DDR3 ECC
800
SR, DR, QR
3
3
Reg. DDR3 ECC
800
SR, DR