Specifications

Rev. I BIOS Functions 5-17
MR series Technical Reference Manual
❏ Windows XP
Since this operation system supports ACPI (PMOS), the settings in the operating system are
valid and the settings in the BIOS are invalid.
The power supply is turned off if the Power button is pressed for 4 seconds or more.
Video Off Mode
The BIOS does not have a Video Off function. Therefore, Video Off is directly controlled by the
operating system or an application. However, Video Off is in effect during the Suspend mode
activated by the BIOS.
❏ DOS
Because DOS does not have a Video Off function, Video Off cannot be generated using
normal operations. Video Off in DOS can, however, be executed by having the application
directly control the video BIOS and the APM BIOS.
❏ Windows NT
Because Windows NT does not have a Video Off function, Video Off cannot be generated
using normal operations. Video Off in Windows NT can, however, be executed by preparing
a dedicated driver that expands the screensaver or by expanding Win API and having it
directly controlled by the application.
❏ Windows 98/2000/XP
Windows 98 and later operating systems have a Video Off function. Therefore, this function
can be used to control Video Off on these operating systems. More specifically, make the
following settings:
Windows 98: Set the time for Power Management Properties: Shut Off Monitor.
Windows 2000: Set the time for Power Schemes: Turn Off Monitor.
Windows XP: Set the time for Power Schemes: Turn Off Monitor.
Use these settings to enable the system to enter the Video Off mode after a preset time
without generating a timer reset event.
Suspend (Standby) Mode
The BIOS has a suspend function, but its use varies depending on the operating system. The
suspend function operates as follows for each operating system. Note that Video Off is executed
when the Suspend mode is activated by the BIOS.
❏ DOS
DOS does not have a suspend function. Therefore, suspending is performed either by using
the suspend function of the BIOS or by an application that directly controls it using the APM
BIOS.
❏ Windows NT
OS setting Full-On / Video-Off Standby
Shutdown Shutdown Full-On
Standby Standby Full-On
Never No-Operation Full-On