Service Guide

BIOS Setup Utilities
Intel
®
Server System P4000IP and Intel
®
Workstation System P4000CR Service Guide 177
Option Values: Enabled
Disabled
Help Text:
BIOS programs the watchdog timer with the timeout value selected. If the OS does not
complete booting before the timer expires, the BMC will reset the system and an error
will be logged.
Requires OS support or Intel
®
Management Software Support.
Comments: This option controls whether the system will set the BMC Watchdog to detect an
appearent to be a hang during OS booting. BIOS sets the timer before starting the OS bootstrap
load procedure. If the OS Load Watchdog Timer times out, then presumably the OS failed to boot
properly.
If the OS does boot up successfully, it must be aware of the OS Load Watchdog Timer and
immediately turn it off before it expires. The OS may turn off the timer, or more often the timer
may be repurposed as an OS Watchdog Timer to protect against runtime OS hangs.
Unless the OS does have timer-aware software to support the OS Load Watchdog Timer, the
system will be unable to boot successfully with the OS Load Watchdog Timer enabled. When the
timer expires without having been reset or turned off, the system will either reset or power off
repeatedly.
11. OS Boot Watchdog Timer Policy
Option Values: Power off
Reset
Help Text:
If the OS watchdog timer is enabled, this is the system action taken if the watchdog timer
expires.
[Reset] - System performs a reset.
[Power Off] - System powers off.
Comments: This option is grayed out and unavailable when the O/S Boot Watchdog Timer is
disabled.
12. OS Boot Watchdog Timer Timeout
Option Values: 5 minutes
10 minutes
15 minutes
20 minutes
Help Text:
If the OS watchdog timer is enabled, this is the timeout value BIOS will use to configure
the watchdog timer.
Comments: This option is grayed out and unavailable when the O/S Boot Watchdog Timer is
disabled.