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120Eg User Guide - Upgrading Your System
Do not use any DIMM not approved by NEC. If an unap-
proved third party's DIMM is installed in the server, not only
the DIMM but also the server itself may be defected. You
will be charged by any repair of a malfunction or defect
caused by such a device within the warranty period.
Due to an interleave device, add two DIMMs in groups The
server does not operate if DIMMs of different specifications *
are installed in the same group.
*The specification of a DIMM is described on the
label put on the board as follows:
Example: Frequency of 333 MHz, buffered, capacity of 512 MB,
raw address of 12 bits, column address of 10 bits, and
single side
333 / B / 512 / R12 C10 S
Capacity
Buffered
Frequency
DIMMs must be populated in pairs and in the following order:
#1A and #1B, and then #2A and #2B.
Install DIMMs starting from the one having largest capacity.
In a maximum configuration, the larger memory size of
DIMMs must be installed in the slots #2A and #2B.
Installed DIMMs must be the same speed and must all be
registered.
Take a note of beep code pattern, and take appropriate
action according to the table listed in
page
5-45.
Notes:
Up to 8GB (2GB × 4) of memory can be added.
In the error messages and logs in POST, NEC ESMPRO
Manager, or Off-line Maintenance Utility, the DIMM connec-
tor may be called group. The number next to a group meets
the connector number in the figure shown in the previous
page.
Single side
Column address
Raw address
"Beep Codes" on
4 - 39
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