NEC Express5800 Series Maintenance Manual page 119

Chapter 2 Configuring and Upgrading the System
6. The CPU/IO module is locked on the way and cannot be pulled out. Lower the lock on the side of
CPU/IO module to unlock it, and then pull it out.
7. Pull out the CPU/IO module gently and carefully, and place it on a flat and sturdy table.
Avoid the dusty or humid place.
This allows you to access the devices in the CPU/IO module. For more information on how to handle these
devices, see the associated sections.
Lock
Express5800/R320c-E4, R320c-M4 Maintenance Guide (VMware)
5. Installing Optional Devices
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