H8DCL-i/6(F) Serverboard User's Manual
2-6
Memory Population for Optimal Performance
-For a Motherboard with One CPU (CPU1) Installed
# DIMMS
CPU
Channel 1
Channel 2
2 DIMMs
CPU1
P1-1A
P1-2A
4 DIMMs
CPU1
P1-1A
P1-1B
P1-2A
P1-2B
Memory Population for Optimal Performance
-For a Motherboard with Two CPUs (CPU1 & CPU2) Installed
# DIMMS
CPU
P1-Channel A
P1-Channel B
4 DIMMs
CPU1
P1-1A
P1-2A
4 DIMMs
CPU2
P2-1A
P2-2A
8 DIMMs
CPU1
P1-1A
P1-1B
P1-2A
P1-2B
8 DIMMs
CPU2
P2-1A
P2-1B
P2-2A
P2-2B
Note:
Memory speed support is dependent on the type of CPU used on the
board.
DIMM Module Population Confi guration
For memory to work properly, follow the tables below for memory installation:
Per Channel DIMM Populations Options
DIMM Type
DIMM A
DIMM B
Max. MHz,
1.5V DIMMs
Max. MHz,
1.35V DIMMs
(6-core Only)
Max. GB/
Channel
Unbuffered
DIMM
(UDIMM)
SR or DR
Empty
1333 MHz
1333 MHz
4 GB
SR
SR
1333 MHz
1333 MHz
4 GB
DR
DR
1066 MHz
1066 MHz
8 GB
Registered
DIMM
(RDIMM)
SR or DR
Empty
1333 MHz
1333 MHz
8 GB
SR
SR
1333 MHz
1333 MHz
8 GB
DR
DR
1066 MHz
1066 MHz
16 GB
QR
Empty
1333 MHz
1333 MHz
16 GB
QR
QR
800 MHz
667 MHz
32 GB
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.
