NEC Express5800/R120e-1M Instruction Manual page 54

Chapter 1 Maintenance
8. System Diagnostics
<Option>
Optional features can be used from this menu.
<Reboot>
Reboots the hardware.
4. Select Reboot in Enduser Menu.
The server restarts. Remove EXPRESSBUILDER DVD from the drive.
System Diagnostics is now completed.
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Express5800/R120e-1M, R120e-2M Maintenance Guide