Installation Order - NEC Express5800/120Rh-2 User Manual

Installation Order

DIMMs must be populated in pairs and in the following order:
#7 and #8, #5 and #6, #3 and #4, then #1 and #2.
Install DIMMs starting from the one having smallest capacity.
FRONT
DIMM #1
Group #1
DIMM #2
DIMM #3
Group #2
DIMM #4
DIMM #5
Group #3
DIMM #6
DIMM #7
Group #4
DIMM #8
IMPORTANT:
Install two additional DIMMs for each group
uses interleaved memory. If DIMMs of different specifications
installed in a bank, the server does not operate normally.
*1
*2
A group is a unit of two DIMM slots. Each pair of DIMM slots
#1 and #2 (group #1), #3 and #4 (group #2), #5 and #6 (group
#3), and #7 and #8 (group #4) in the figure is a group. (The
symbols are also printed on the mother board.)
DIMM specification is shown on the label attached to the
DIMM as follows:
Example: Frequency of 400 MHz, buffered, capacity of 512 MB,
row address of 12 bits, column address of 10 bits, and
single side
400 / B / 512 / R12 C10 S
Capacity
Buffered
Frequency
Mother board
*1
because the server
Single side
Column address
Row address
Upgrading Your Server
REAR
*2
are
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