X7DBi+ User's Manual
2-3 Installing DIMMs
Note: Check the Supermicro web site for recommended memory modules.
CAUTION
Exercise extreme care when installing or removing DIMM modules to prevent any possible damage. Also note that the memory is interleaved to improve performance.
DIMM Installation
1.Insert the desired number of DIMMs into the memory slots, starting with DIMM #1A. The memory scheme is interleaved so you must install four modules at a time, beginning with DIMM #1A, DIMM #2A, DIMM #3A, then DIMM #4A and so on. For optimal memory performance, please install four modules at a time with the maximum of 16 modules. (See the Memory Installation Table Below.)
2.Insert each DIMM module vertically into its slot. Pay attention to the notch along the bottom of the module to prevent inserting the DIMM module incorrectly.
3.Gently press down on the DIMM module until it snaps into place in the slot. Repeat for all modules (see step 1 above).
Memory Support
The X7DBi+ supports up to 64 GB fully buffered (FBD) ECC DDR 2 533/667 in 16 DIMMs. Populating DIMM modules with pairs of memory modules that are of the same size and same type in both Branch 0 and Branch 1 will result in interleaved memory. (See the table below.)
Note 1: Due to OS limitations, some operating systems may not show more than 4 GB of memory.
DIMM Module Population Configuration
To optimize memory support, follow the table below for memory installation:
Optimized DIMM Population Table
| Branch 0 |
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| Branch 1 |
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Number of | Bank 1 |
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| Bank 2 |
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| Bank 3 |
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| Bank 4 |
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DIMMs | (Channel 0) |
| (Channel 1) |
| (Channel 2) |
| (Channel 3) |
| ||||||||||
2 DIMMs | 1A |
| 2A |
| ||||||||||||||
4 DIMMs | 1A |
| 2A | 3A |
| 4A | ||||||||||||
8 DIMMs | 1A | 1B |
| 2A | 2B | 3A | 3B |
| 4A | 4B | ||||||||
12 DIMMs | 1A | 1B |
| 1C | 2A | 2B | 2C | 3A | 3B |
| 3C | 4A | 4B | 4C | ||||
16 DIMMs | 1A | 1B |
| 1C | 1D | 2A | 2B | 2C | 2D | 3A | 3B |
| 3C | 3D | 4A | 4B | 4C | 4D |
(*Notes: i. DIMM slot# specified: DIMM slot to be populated;
