Technical Product Specification

Intel® Server Board S1600JP TPS BIOS Setup Interface
Setup Item
Options
Help Text
Comments
Power Restore
Delay
Disabled
Auto
Fixed
Allows a delay in powering up after a
power failure, to reduce peak power
requirements. The delay can be fixed
or automatic between 25-300
seconds.
When the AC power resume policy
(above) is either Power On or Last
State, this option allows a delay to
be taken after AC power is restored
before the system actually begins to
power up. This delay can be either a
fixed time or an “automatic” time,
where “automatic” means that the
BIOS will select a randomized delay
time of 25-300 seconds when it
sends the Power Restore Delay
setting to the BMC.
This option will be grayed out and
unavailable when the AC power
resume policy is Stay Off.
The Power Restore Delay setting is
maintained by BIOS. This setting
does not take effect until a reboot is
done. Early in POST, the Power
Restore Policy is read from the
BMC, and if the policy is Power On
or Last State, the delay settings are
sent to the BMC.
Bear in mind that even if the Power
Restore Delay is Disabled, there will
still be a delay of about 20 seconds
while the BMC itself boots up after
AC power is restored.
Note: This Power Restore Delay
option applies only to powering on
when AC is applied. It has no effect
on powering the system up using
the Power Button on the Front
Panel. A DC power on using the
Power Button is not delayed.
The purpose of this delay is to avoid
having all systems draw “startup
surge” power at the same time.
Different systems or racks of
systems can be set to different
delay times to spread out the startup
power draws. Alternatively, all
systems can be set to Automatic,
and then each system will wait for a
random period before powering up.
Revision 1.9 121