Supero X7DWU, User Manual

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2-6
X7DWU 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 (see step 1).
DIMM Installation
Insert the desired number of DIMMs into the memory slots, starting with DIMM 1.
#1A.
The memory scheme is interleaved so 2. you must install two modules at a time,
beginning with DIMM #1A, then DIMM #2A and so on. (See the Memory Instal-
lation Table Below.)
Insert each DIMM module vertically into its slot. Pay attention to the notch along 3.
the bottom of the module to prevent inserting the DIMM module incorrectly.
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 X7DWU supports up to 64 GB fully buffered (FBD) ECC 1.5V/1.8V DDR2
800/667/533 in 8 DIMMs. Populating DIMM modules with pairs of memory modules
of the same size and same type will result in Interleaved Memory which will
increase memory performance.
Note 1 : Due to OS limitations, some operating systems may not show more
than 4 GB of memory.
Optimized DIMM Population Configurations
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 --- ---
(* Notes: i. DIMM slot# specified: DIMM slot to be populated; “---“: DIMM slot not to
be populated. ii. Both FBD 800 MHz, 667 MHz and 533 MHz DIMMs are supported;
however, you need to use the memory modules of the same speed and of the same
type on a motherboard.
iii. Interleaved memory is supported when pairs of DIMM
modules are installed. For optimal memory performance, please install pairs of
memory modules in
both Banks 1 & 2 . iv. For memory to work properly, you need
to follow the restrictions listed above. )
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