Memory Support

The H8QGL-6/iF(+) supports up to 512GB Registered ECC (RDIMM) or 128GB Unbuffered ECC/non-ECC DDR3 1866/1600/1333/1066MHz SDRAM in 16 DIMM slots. Populating DIMMs in groups of four, one per channel (4 DIMMs/CPU), the same DIMM type in H8QGL-6/iF(+) 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 Max. MHz, 1.5V DIMMs Max. MHz, 1.35V DIMMs Max. GB / channel
UDIMM SR or DR 1866 MHz 1600 MHz 8 GB
RDIMM SR or DR 1866 MHz 1600 MHz 16 GB
QR 1333 MHz 1333 MHz 32 GB
LRDIMM QR   1333 MHz 32 GB

Memory Population Guidelines

Please follow the tables below when populating the H8QGL-6/iF(+).

Table 2 - Memory Population for Optimal Performance For a Motherboard with One CPU (CPU1) Installed
# DIMMs CPU Channel 1 Channel 2 Channel 3 Channel 4
4 DIMMs CPU 1 P1-1A P1-2A P1-3A P1-4A

Table 3 - Memory Population for Optimal Performance For a Motherboard with Two CPU (CPU1 & CPU2) Installed
# DIMMs CPU Channel 1 Channel 2 Channel 3 Channel 4
8 DIMMs CPU 1 P1-1A P1-2A P1-3A P1-4A
CPU 2 P2-1A P2-2A P2-3A P2-4A


Table 4 - Memory Population for Optimal Performance For a Motherboard with Two CPU (CPU1 & CPU2 & CPU3 & CPU4) Installed
# DIMMs CPU Channel 1 Channel 2 Channel 3 Channel 4
16 DIMMs CPU 1
P1-1A
P1-2A
P1-3A
P1-4A
CPU 2
P2-1A
P2-2A
P2-3A
P2-4A
CPU 3
P3-1A
P3-2A
P3-3A
P3-4A
CPU 4
P4-1A
P4-2A
P4-3A
P4-4A

UDIMM: Unbuffered DIMM
RDIMM: Registered DIMM
P1-1A: CPU 1, Channel 1, DIMM A