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5-6
Installing Memory
!
CAUTION! Exercise extreme care when installing or removing DIMM
modules to prevent any possible damage.
Installing Memory
1. Insert each memory module vertically into its slot, paying attention to the
notch along the bottom of the module to prevent inserting the module
incorrectly (see Figure 2-1).
2. Install to slots CPU1/DIMM1A and CPU1/DIMM1B fi rst, then to CPU1/
DIMM2A and CPU1/DIMM2B, etc. Always install in pairs and in the numerical
order of the DIMM slots. See support information below.
3. Gently press down on the memory module until it snaps into place.
4. With two CPUs installed, repeat step 2 to populate the CPU2 DIMM slots.
Always install pairs of DIMMs to both CPU DIMM slots for more effi cient
operation.
Note: 1 GB, 2 GB, 4 GB, 8 GB and 16 GB memory modules are supported.
It is highly recommended that you remove the power cord from the system
before installing or changing memory modules. Please refer to our web site for
memory that has been tested on the H8DGT-H/HF/HIBQ/HIBQF serverboard.
Support
The H8DGT-HF/HIBQF serverboard supports single/dual/tri/quad-channel, DDR3-
1333/1066/800 registered ECC/Unbuffered ECC/non-ECC SDRAM. Only inter-
leaved memory is supported, so you must populate two DIMM slots at a time (see
procedure above).
Populating two adjacent slots at a time with memory modules of the same size and
type will result in interleaved (128-bit) memory, which is faster than non-interleaved
(64-bit) memory.
Maximum Memory
Maximum memory for the H8DGT-HF/HIBQF serverboard is 256 GB of DDR3-
1333/1066/800 registered ECC or 64GB of DDR3 Unbuffered ECC/non-
ECC SDRAM.
Chapter 5: Advanced Serverboard Setup
5-7
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