Memory Support

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