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A+ SERVER 1022G-UTF User's Manual
Memory Population for Optimal Performance
-For a Motherboard with One CPU (CPU1) Installed
# DIMMS CPU Branch 0 Branch 1 Branch 2 Branch 3
2 DIMMs CPU1 P1-1A P1-2A
4 DIMMs CPU1 P1-1A P1-2A P1-3A P1-4A
8 DIMMs CPU1 P1-1A P1-1B P1-2A P1-2B P1-3A P1-3B P1-4A P1-4B
Memory Population for Optimal Performance
-For a Motherboard with Two CPUs (CPU1 & CPU2) Installed
# DIMMS CPU Branch 0 Branch 1 Branch 2 Branch 3
4 DIMMs CPU1 P1-1A P1-2A
CPU2 P2-1A P2-2A
8 DIMMs CPU1 P1-1A P1-2A P1-3A P1-4A
CPU2 P2-1A P2-2A P2-3A P2-4A
16 DIMMs CPU1 P1-1A P1-1B P1-2A P1-2B P1-3A P1-3B P1-4A P1-4B
CPU2 P2-1A P2-1B P2-2A P2-2B P2-3A P2-3B P2-4A P2-4B
DIMM Module Population Conguration
For memory to work properly, follow the tables below for memory installation:
DIMM Population Table
DIMM
Slots per
Channel
DIMMs
Populated
per Chan-
nel
DIMM Type (Reg.=
Registered)
Speeds (in MHz) Ranks per DIMM
(any combina-
tion; SR=Single
Rank,
DR=Dual Rank,
QR=Quad Rank)
2 1 Reg. DDR3 ECC 1066,1333 SR or DR
2 1 Reg. DDR3 ECC 1066,1333 QR
2 2 Reg. DDR3 ECC 1066 Mixing SR, DR, QR
2 1 Unb. DDR3 ECC 1066,1333 SR or DR
2 2 Unb. DDR3 ECC 1066,1333 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 disproportional.