Memory Support
The MBD-X8SIxxx supports up to 16GB of DDR3 ECC UDIMM or up to 32GB of ECC DDR3 RDIMM (1333/1066/800 MHz in 6 DIMM slots.) Populating these DIMM modules with a pair of memory modules of the same type and same size will result in interleaved memory, which will improve memory performance.
Please refer to the table below:
| Platform |
DIMM Type |
Intel® Xeon® Series Processors |
| MBD-X8SIxxx |
Non-ECC UDIMM Only |
Not Supported |
| ECC UDIMM Only |
Supported (see Table 1) |
| RDIMM Only (with ECC) |
Supported (see Table 2) |
| Mixed ECC with non-ECC |
Not Supported |
| Mixed UDIMM/RDIMM |
Not Supported |
| Table 1 - DDR3 ECC/Unbuffered (UDIMM) Memory Support |
| ECC UDIMM |
1Gb (x8 DRAM) |
2Gb (x8 DRAM) |
| Single Rank |
Up to 4GB (4 x 1GB DIMM Modules)* |
Up to 8GB (4 x 2GB DIMM Modules)* |
| Dual Rank |
Up to 8GB (4 x 2GB DIMM Modules)* |
Up to 16GB (4 x 4GB DIMM Modules)* |
| Quad Rank |
Not Supported |
Not Supported | *Note: For ECC UDIMMs, only Slot 1 and Slot 2 may be populated per channel.
| Table 2 -DDR3 ECC Registered (RDIMM) Memory Support |
| RDIMM |
1Gb (x8 DRAM) |
2Gb (x8 DRAM) |
| Single Rank |
Up to 6GB (6 x 1GB DIMM Modules) |
Up to 12GB (6 x 2GB DIMM Modules) |
| Dual Rank |
Up to 12GB (6 x 2GB DIMM Modules) |
Up to 24GB (6 x 4GB DIMM Modules) |
| Quad Rank |
Up to 24GB (6 x 4GB DIMM Modules)** |
Up to 48GB (6 x 8GB DIMM Modules)** | Note: All other memory sizes, types, die, density, that are not listed in these tables are NOT supported.
**For Quad Rank RDIMMs, only Slot 1 and Slot 2 are populated per channel.
Memory Population Guidelines
Please follow the tables below when populating the MBD-X8SIxxx.
|
| DDR3 ECC UDIMM Memory |
|
| DIMM Slots per Channel |
DIMMs Populated per Channel |
DIMM Type |
POR Speeds |
Ranks per DIMM (any combination) |
| 3 |
1 |
Unbuffered DDR3 ECC |
1066, 1333 |
Single Rank, Dual Rank |
| 3 |
2 |
Unbuffered DDR3 ECC |
1066, 1333 |
Single Rank, Dual Rank |
| 3 |
3 |
N/A |
Not Supported |
Single Rank, Dual Rank |
|
| DDR3 ECC RDIMM Memory |
|
| DIMM Slots per Channel |
DIMMs Populated per Channel |
DIMM Type |
POR Speeds |
Ranks per DIMM (any combination) |
| 2 |
1 |
Registered DDR3 ECC |
1066, 1333 |
Single Rank, Dual Rank |
| 2 |
1 |
Registered DDR3 ECC |
1066 |
Quad Rank |
| 2 |
2 |
Registered DDR3 ECC |
1066, 1333 |
Single Rank, Dual Rank |
| 2 |
2 |
Registered DDR3 ECC |
800* |
Quad Rank |
| 3 |
3 |
Registered DDR3 ECC |
800* |
Single Rank, Dual Rank |
| 3 |
3 |
N/A |
Not Supported |
Quad Rank | *Note: 1066 RDIMMs running at 800MHz-BIOS will be automatically downgraded to 800MHz speed.
|
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