Memory Support
The H8DGT-HF/-HIBQF 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 (4, 8 DIMMs/CPU), 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 |
DIMM B |
Max. MHz, 1.5V DIMMs |
Max. MHz, 1.35V DIMMs |
Max. GB / channel |
UDIMM |
SR or DR |
Empty |
1333 MHz |
1333 MHz |
8 GB |
SR |
SR |
DR |
DR |
RDIMM |
SR or DR |
Empty |
1333 MHz |
1333 MHz |
16 GB |
SR |
SR |
DR |
DR |
QR |
Empty |
1333 MHz |
1333 MHz |
16 GB |
QR |
QR |
1066 MHz |
800 MHz |
32 GB |
Memory Population Guidelines
Please follow the tables below when populating the H8DGT-HF/-HIBQF
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 |
|
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 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 |
|
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 |
UDIMM: Unbuffered DIMM
RDIMM: Registered DIMM