Supero SUPERSERVER 7045W-NTR+, User Manual

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Chapter 5: Advanced Serverboard Setup
5-9
Memory Support
The X7DWN+ supports up to 128 GB fully buffered (FBD) ECC DDR2 800/667/533
in 16 DIMM slots (four channels, two branches). Both 1.5V and 1.8V memory are
supported (but cannot be mixed). Single channel memory, two-way interleaved
memory and four-way interleaved memory schemes are all supported. Using four-
way interleaved memory will result in the best performance. Please use memory
modules of the same type, speed, timing and same on a serverboard. Note: See
the following table for memory installation.
Installing Memory Modules
Insert the desired number of Fully Buffered DDR2 modules into the memory
slots, starting with DIMM #1A. To enhance memory performance, install pairs
of memory modules of the same type and of the same, beginning with DIMM
#1A and DIMM #2A, then DIMM #3A and DIMM #4A, etc. (see Memory Con-
fi guration Table below).
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).
Gently press down on the DIMM module until it snaps into place in the slot.
Repeat for all modules.
1.
2.
3.
!
CAUTION! Exercise extreme care when installing or removing DIMM
modules to prevent any possible damage.
5-6 Installing Memory
Memory Configuration Chart
Branch 0 Branch 1
Number of
DIMMs Bank 1
(Channel 0) Bank 2
(Channel 1) Bank 3
(Channel 2) Bank 4
(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; “---“ = DIMM slot not to
be populated. ii. Both FBD 533 MHz, 667MHz and 800MHz DIMMs are supported,
however, you need to use the memory modules of the same speed and type.
iii. Interleaved memory is supported when pairs of DIMM modules are installed. For
optimal memory performance, please install pairs of memory modules in both Branch
0 and Branch 1.