NEC Express 5800/320Lc - Manual (Page 327)

8-26 System Upgrade
11. Verify that POST displays no error messages.
If POST displays an error message, take a note on the massage and see the POST error
messages listed in Chapter 7.
Replacing CPU
Follow the steps below to replace a failed CPU:
1. Use Data Viewer of NEC ESMPRO Manager to check the failed CPU.
2. Remove the CPU module.
3. Replace the CPU.
4. Install the CPU module.
The installed CPU module will start automatically.