Nuvo-2400
User’s Manual
Copyright © 2015 Neousys Technology Inc. All Right Reserved.
Page 61 of 81
5.1.6 Watchdog Timer for Booting
The BIOS of
Nuvo-2400
has a useful feature which allows users to use the watchdog timer
to secure the booting process. You can specify the timeout value for watchdog timer. Once
the watchdog timer expires, the BIOS issues a reset command to initiate another booting
process. You can also set the behavior of how to stop the watchdog timer. There are two
options in BIOS menu,
[Automatically after POST]
and
[Manually after Entering OS]
.
When
[Automatically after POST]
is selected, the BIOS automatically stop the watchdog
timer after POST (Power-On Self Test) OK. When
[Manually after Entering OS]
is
selected, user applications have to stop the watchdog timer after OS is activated. This
guarantees the system can always boot to OS, otherwise another booting process will be
initiated. For information about programming watchdog timer, please refer to the chapter
To set the watchdog timer for boot in BIOS:
1. When
Nuvo-2400
boots up, press F2 to enter BIOS setup utility.
2. Go to
[Boot]
menu.
3. Disable or select timeout value for
[WDT for Booting]
option.
4. Once you give a timeout value, the
[WDT Stop Option]
option appears. You can
select either
[Automatically after POST]
or
[Manually after Entering OS]
.
Figure 55: Configuring WDT in BIOS