Epson MR Series Technical Reference Manual page 158

Because a delay with the system timer is generated if Windows NT enters the Suspend
mode, the system is not allowed to enter the Suspend mode. Be aware that the suspend
timer cannot be set by the BIOS. Also, the Delay 4 Sec. setting cannot be used because
pressing the Power button when the Power Button setting is set to Delay 4 Sec. would cause
the system to enter the Suspend mode.
❏ Windows 98/2000/XP
Windows 98 and later operating systems have a standby function. Therefore, this function
can be used to control suspend on these operating systems. More specifically, make the
following settings.
Windows 98: Set the time at Power Management Properties: System Standby.
Windows 2000: Set the time at Power Schemes: System Standby.
Windows XP: Set the time at Power Schemes: System Standby.
Use these settings to enable the system to enter the Suspend mode after a preset time
without generating a timer reset event. On these operating systems, the suspend function of
the system is enabled and the BIOS suspend function is ignored.
Suspend can also be executed by selecting Shut Down or Turn Off from the Start menu and
then selecting Standby from the Shutdown dialog.
Hard Disk Drive Power Down Mode
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 2.13.00 or higher. If your BIOS version is before 2.12,
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.
Windows 98/2000/XP
Windows 98 and later operating systems have a hard disk drive power down function.
Therefore, this function can be used to control hard disk drive power down in these
operating systems.
5-18 BIOS Functions Rev. I