NEC Express5800/R320g-M4 Maintenance Manual page 211

Chapter 3 Useful Features
The AC-LINK settings and DC power operations when AC power was off and then is supplied are as follows.
State before AC power off
Running (DC power On)
Stopping (DC power Off)
Forcible power Off
*1 When the setting is Last State and State before AC power Off is "Running (DC power On)", there are
following restrictions.

When timing of AC power off can be controlled before an OS boot, do AC power off the CPU/IO
module of the secondary side first.
At this time, there is the timing of DC power Off. During this timing, if another CPU/IO module do AC
power off, last state of "State before AC power Off" becomes "Stopping (DC power Off)". This is
specification for ft server.
When the power supply of both module is same and the timing of AC power off is the same time,
these restrictions isn't relevant.
*2 Press POWER switch for 4 seconds or more to forcibly turn off the power supply.
Express5800/R310g-E4, R320g-E4, R320g-M4 Maintenance Guide (Windows)
*2
Set up Power On in AC-LINK for automatic operation using an uninterruptible power
Tips
supply (UPS).
AC-LINK settings
Stay Off Last State
*1
Off On
Off Off
Off Off
1. System BIOS
Power On
On
On
On
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