Memory Support

The H8QG6/i(+)-F supports up to 1TB of Registered ECC or 256GB Unbuffered ECC/non-ECC DDR3 1600/1333/1066MHz SDRAM in 32 DIMM slots. Populating DIMMs in groups of four, one per channel (4, 8 DIMMs/CPU), the same DIMM type in H8QG6/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 1600 MHz 8 GB
DR DR 1333 MHz 16 GB
RDIMM SR or DR Empty 1600 MHz 1333 MHz 16 GB
SR SR 16 GB
DR DR 32 GB
QR Empty 1333 MHz 1066 MHz 32 GB
QR QR 1066 MHz 800 MHz 64 GB
LRDIMM QR Empty   1333 MHz 32 GB
QR QR 64 GB

Memory Population Guidelines

Please follow the tables below when populating the H8QG6/i(+)-F.

Table 2 - Memory Population for Optimal Performance
For a Motherboard with One CPU (CPU1) Installed (Note: Cannot use UIO slot and Slot2)
# DIMMs CPU Channel 1 Channel 2 Channel 3 Channel 4
4 DIMMs CPU 1 P1-1A   P1-2A   P1-3A   P1-4A  
8 DIMMs CPU 1 P1-1A P1-1B P1-2A P1-2B P1-3A P1-3B P1-4A P1-4B

Table 3 - Memory Population for Optimal Performance
For a Motherboard with Two CPUs (CPU 1 & CPU 2 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  
16 DIMMs CPU 1 P1-1A P1-1B P1-2A P1-2B P1-3A P1-3B P1-4A P1-4B
  CPU 2 P2-1A P2-1B P2-2A P2-2B P2-3A P2-3B P2-4A P2-4B

Table 4 - Memory Population for Optimal Performance
For a Motherboard with Four CPUs (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  
32 DIMMs CPU 1 P1-1A P1-1B P1-2A P1-2B P1-3A P1-3B P1-4A P1-4B
  CPU 2 P2-1A P2-1B P2-2A P2-2B P2-3A P2-3B P2-4A P2-4B
  CPU 3 P3-1A P3-1B P3-2A P3-2B P3-3A P3-3B P3-4A P3-4B
  CPU 4 P4-1A P4-1B P4-2A P4-2B P4-3A P4-3B P4-4A P4-4B

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