The H8DCL-6/i(F) supports up to 64GB of DDR3 ECC/Non-ECC UDIMM or up to 256GB of ECC DDR3 RDIMM (1600/1333/1066MHz in 8 DIMM slots). Populating DIMMs in groups of two, one per channel (2, 4 DIMMs/CPU), the same DIMM type in H8DCL-6/i(F) each channel, the same amount of memory on each CPU will improve memory performance. Please refer to the table below:
Table 1 - Per channel populations options
DIMM A
DIMM B
Max. MHz, 1.5V DIMMs
Max. MHz, 1.35V DIMMs
Max. GB / channel
UDIMM
SR or DR
Empty
1600 MHz
1333 MHz
8 GB
SR
SR
1333 MHz
1333 MHz
8 GB
DR
DR
1066 MHz
1066 MHz
16 GB
RDIMM
SR or DR
Empty
1600 MHz
1333 MHz
16 GB
SR
SR
1333 MHz
1333 MHz
16 GB
DR
DR
1066 MHz
1066 MHz
32 GB
QR
Empty
1333 MHz
1066 MHz
32 GB
QR
QR
800 MHz
800 MHz
64 GB
Memory Population Guidelines
Please follow the tables below when populating the H8DCL-6/i(F).
Table 2 - Memory Population for Optimal Performance For a Motherboard with One CPU (CPU1) Installed
# DIMMs
CPU
Channel 1
Channel 2
2 DIMMs
CPU 1
P1-1A
P1-2A
4 DIMMs
CPU 1
P1-1A
P1-1B
P1-2A
P1-2B
Table 3 - Memory Population for Optimal Performance For a Motherboard with Two CPU (CPU1 & CPU2) Installed
# DIMMs
CPU
Channel 1
Channel 2
4 DIMMs
CPU 1
P1-1A
P1-2A
CPU 2
P2-1A
P2-2A
8 DIMMs
CPU 1
P1-1A
P1-1B
P1-2A
P1-2B
CPU 2
P2-1A
P2-1B
P2-2A
P2-2B
UDIMM: Unbuffered DIMM
RDIMM: Registered DIMM
P1-1A: CPU 1, Channel 1, DIMM A