The H8QGL-6/iF(+) supports up to 64GB of DDR3 ECC/Non-ECC UDIMM or up to 256GB of ECC DDR3 RDIMM (1333/1066/800MHz in 16 DIMM slots). Populating DIMMs in groups of four, one per channel, the same DIMM type in 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 | 1333 MHz | 1333 MHz | 4 GB |
| RDIMM | SR or DR | 1333 MHz | 1333 MHz | 16 GB |
| QR | 1333 MHz | 1066 MHz | 16 GB | |
| 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 |
|