User`s manual

2-8
X8DA6/X8DAE User's Manual
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 Module Population Confi guration
For memory to work properly, follow the tables below for memory installation.
Memory Support for the Motherboard w/5500 Processors Installed
RDIMM Population for the Motherboard with 5500 Processors Installed
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 (Note 1) QR
2 2 Reg. DDR3 ECC 800,1066 (Note 1) Mixing SR, DR
2 2 Reg. DDR3 ECC 800 (Note 2) Mixing SR, DR, QR
Note 1: 1333 RDIMMs will run at 1066 MHz (-BIOS automatic downgrading).
Note 2: 1333/1066 RDIMMs will run at 800 MHz (-BIOS automatic downgrading).