User`s guide

5.5 Installing Memory
CAUTION
Exercise extreme care when installing or removing DIMM modules to prevent any
possible damage
5.5.1 Memory Support
The R423-E3 serverboard supports up to 512 GB of DDR3-1600/1333/1066/800
RDIMM, LRDIMM ECC or UDIMM ECC/non-ECC memory. Use memory modules of
the
same type and speed. See the following tables for memory installation. Please refer to the
Bull web site for possible updates to supported memory.
5.5.2 DIMM Installation
1. Insert the desired number of DIMMs into the memory slots starting with DIMM #P1-
DIMMA1. When populating two DIMM modules within a channel, always start with
Bank1 first. For optimal memory performance, please install a pair (or pairs) of
memory modules of the same type and speed with a maximum of
12 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 avoid installing incorrectly (see Figure 5-3).
3. Gently press down on the DIMM module until it snaps into place in the slot.
Repeat for all modules.
Figure 5-3. Installing DIMM into Slot
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bullx R423-E3 - Installation and User's Guide