Cpu/Io Module - NEC Express5800 Series Maintenance Manual

Chapter 2 Configuring and Upgrading the System
5.4

CPU/IO Module

To replace a CPU (processor), DIMM (memory), or PCI card, you need to remove the CPU/IO module.

See Chapter 2 ("5.1.3 Installing, Removing and Replacing Devices") and Chapter
Important
1 (1.8 Anti-Static Measures )in Safety Precautions and Regulatory Notices)
before starting installing or removing options.

To install or remove CPU or DIMM, first power off the server before removing the
CPU/IO module.

Removing the module being operating may cause unexpected trouble. Use the
management software (e.g., ft server utility or NEC ESMPRO Manager) to isolate
the CPU/IO module to be removed so that the module is removed when it is
stopped, without fail.
Then remove the relevant module after verifying the Status LED on the CPU/IO
module. See Chapter 1 (6.1 Error Messages by LED Indication) for details of the
Status LED.

When replacing both CPU/IO modules, replace one module and wait until dual
configuration is established to replace the other module. If you replace the both
modules simultaneously, establishing dual CPU/IO module configuration can
result in interruption of the whole system.
Express5800/R320e-E4, R320e-M4 Maintenance Guide (Linux)
5. Installing and Replacing Optional Devices
121