Technical Product Specification

Intel® Server Boards S4600LH2/T2 TPS
Revision 2.0
178
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.
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7. Power Restore Delay Value
Option Values: [Entry Field 25 – 300, 25 is default]
Help Text:
Fixed time period 25-300 seconds for Power Restore Delay.
Comments: When the power restore policy is Power On or Last State, and the Power
Restore Delay selection is Fixed, this field allows for specifying how long in seconds that fixed delay
will be.
When the Power Restore Delay is Disabled or Auto, this field will be grayed out and unavailable.
The Power Restore Delay Value 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. When the Power Restore Delay
setting is Fixed, this delay value is used to provide the length of the delay.
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8. Clear System Event Log
Option Values: Enabled
Disabled
Help Text:
If enabled, clears the System Event Log. All current entries will be lost.
Note: This option is reset to [Disabled] after a reboot.
Comments: This option sends a message to the BMC to request it to clear the System Event
Log. The log will be cleared, and then the “Clear” action itself will be logged as an event. This give the
user a time/date for when the log was cleared.
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9. FRB-2 Enable
Option Values: Enabled
Disabled
Help Text:
Fault Resilient Boot (FRB).
BIOS programs the BMC watchdog timer for approximately 6 minutes. If BIOS does not
complete POST before the timer expires, the BMC will reset the system.
Comments: This option controls whether the system will be reset if the BMC Watchdog Timer
detects what appears to be a hang during POST. When the BMC Watchdog Timer is purposed as an
FRB-2 timer, it is initially set to allow 6 minutes for POST to complete.
However, the FRB-2 Timer is suspended during times when some lengthy operations are in progress,
like executing Option ROMS, during Setup, and when BIOS is waiting for a password. or for input to the
F6 BBS Boot Menu. The FRB-2 Timer is also suspended while POST is paused with the <Pause> key.
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