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Chapter 5
BIOS Functions
The IR-320 system ROM stores the following BIOS-related utilities. This chapter describes the
BIOS setup utility and Power on self-test (POST).
BIOS setup
Power on self-test (POST)
Device diagnostic utility (See Chapter 6)
Restrictions
When using Windows 2000, the quitting of the application and the Auto Shutdown of OS cannot
be done by using the Power Status Change Notification.
The AC Line Tool utility is provided to send a notification to the application that the system power has
been changed from the AC Line to the battery drive. See Chapter 4, "Utility" for details.
HDD Power Down Timer Setting
The HDD Power Down Timer settings are made through the OS in Windows XP/2000/98, but
in Windows NT/95 and DOS, the settings are made through the BIOS, as detailed below. To
have the HDD motor stop when the HDD is not accessed for a certain time, follow the steps
below:
1. Start up the BIOS Setup Utility.
2. Select [Power Management Setup].
3. Select [HDD Power Down].
4. Select the time in the option.
5. Save it and restart.
After the restart, when there is no HDD access for the time set, the HDD Power Down Timer
switches over to HDD Power Down and the motor of the HDD stops.
Note:
This function can be used only with BIOS version 2.11.02 or higher. If your BIOS version is before
2.11.01, upgrade the BIOS and then do the above procedure.
When access to HDD occurs, the motor of HDD begins to start and the HDD becomes accessible.
Rev.C
IR-320 Technical Reference Manual
5-1 BIOS Functions
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