Precautions - NEC Express5800/320Fd-MR N8800-123F, EXP320K User Manual

8-18 System Upgrade

Precautions

Note the following to install or replace DIMM.
The DIMMs with the same slot number are linked between the CH1 and CH0.. When a DIMM is
added to one CH, another identical DIMM should be installed to the slot with the same number
in another CH. This rule is applied to the case of removal.
The linked DIMMs between CHs should be of the same product with the same performance.
DIMMs should be installed in sockets from the lowest slot number to the highest slot number.
To install DIMM, install the product with the same serial number to the same CHs and slots of
the CPU/IO modules 0 and 1.