Gigabyte GA-X79S-UP5 User's, Manual

Page: 55 / 112

- 55 - BIOS Setup
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AC BACK
Determines the state of the system after the return of power from an AC power loss.
Always Off The system stays off upon the return of the AC power. (Default)
Always On The system is turned on upon the return of the AC power.
Memory The system returns to its last known awake state upon the return of the AC power.
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Power On By Keyboard
Allows the system to be turned on by a PS/2 keyboard wake-up event.
Note: To use this function, you need an ATX power supply providing at least 1A on the +5VSB lead.
Disabled Disables this function. (Default)
Any Key Press any key to turn on the system.
Keyboard 98 Press POWER button on the Windows 98 keyboard to turn on the system.
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Resume by Alarm
Determines whether to power on the system at a desired time. (Default: Disabled)
If enabled, set the date and time as following:
Wake up day: Turn on the system at a specific time on each day or on a specific day in a month.
Wake up hour/minute/second: Set the time at which the system will be powered on automatically.
Note: When using this function, avoid inadequate shutdown from the operating system or removal of the
AC power, or the settings may not be effective.
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High Precision Event Timer
(Note)
Enables or disables High Precision Event Timer (HPET) for Windows 7 operating system. (Default: Enabled)
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Soft-Off by PWR-BTTN
Configures the way to turn off the computer in MS-DOS mode using the power button.
Instant-Off Press the power button and then the system will be turned off instantly. (Default)
Delay 4 Sec Press and hold the power button for 4 seconds to turn off the system. If the power
button is pressed for less than 4 seconds, the system will enter suspend mode.
2-7 Power Management
(Note) Supported on Windows 7 operating system only.