Instruction Manual
Table Of Contents
- Contents
- Chapter 1 Product introduction
- Chapter 2 BIOS setup
- 2.1 Managing and updating your BIOS
- 2.2 BIOS setup program
- 2.3 Main menu
- 2.4 Ai Tweaker menu
- 2.4.1 AI Overclocking [Auto]
- 2.4.2 DRAM Frequency Control [Auto]
- 2.4.3 HT Link Speed [Auto]
- 2.4.4 CPU Voltage [Auto]
- 2.4.5 CPU/NB Voltage [Auto]
- 2.4.6 CPU VDDA Voltage [Auto]
- 2.4.7 DRAM Voltage [Auto]
- 2.4.8 HT Voltage [Auto]
- 2.4.9 NB Voltage [Auto]
- 2.4.10 CPU/LDT Spread Spectrum [Disabled]
- 2.4.11 PCIE Spread Spectrum [Disabled]
- 2.4.12 SATA Spread Spectrum [Disabled]
- 2.4.13 PCI Spread Spectrum [Disabled]
- 2.5 Advanced menu
- 2.6 Power menu
- 2.7 Boot menu
- 2.8 Tools menu
- 2.9 Exit menu

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ASUS M4N78 PRO
2.6 Power menu
The Power menu items allow you to change the settings for the Advanced Conguration and
Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then
press <Enter> to display the conguration options.
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
Suspend Mode [Auto]
ACPI 2.0 Support [Disabled]
ACPI APIC support [Enabled]
APM Conguration
Hardware Monitor
Select the ACPI state
used for System
Suspend.
2.6.1 Suspend Mode [Auto]
Allows you to select the Advanced Conguration and Power Interface (ACPI) state to be used
for system suspend. Conguration options: [S1 (POS) Only] [S3 Only] [Auto]
2.6.2 ACPI 2.0 Support [Disabled]
Allows you to add more tables for Advanced Conguration and Power Interface (ACPI) 2.0
specications. Conguration options: [Disabled] [Enabled]
2.6.3 ACPI APIC Support [Enabled]
Allows you to enable or disable the Advanced Conguration and Power Interface (ACPI)
support in the Application-Specic Integrated Circuit (ASIC). When set to Enabled, the ACPI
APIC table pointer is included in the RSDT pointer list.
Conguration options: [Disabled] [Enabled]
2.6.4 APM Conguration
Restore on AC Power Loss [Power Off]
When set to Power Off, the system goes into off state after an AC power loss. When set to
Power On, the system goes on after an AC power loss.
Conguration options: [Power On] [Power Off] [Last State]
Power On By PME [Disabled]
Allows you to enable or disable the PME to wake up from S5 by PCI devices.
Conguration options: [Disabled] [Enabled]
Power On By Ring [Disabled]
Enable or disable RI to generate a wake event. Conguration options: [Disabled] [Enabled]
Power On By PS/2 Keyboard [Disabled]
Allows you to disable the Power On by PS/2 keyboard function or set specic keys on
the PS/2 keyboard to turn on the system. This feature requires an ATX power supply that
provides at least 1A on the +5VSB lead.
Conguration options: [Disabled] [Space Bar] [Power Key] [Ctrl-Esc]
Power On By PS/2 Mouse [Disabled]
Allows you to enable or disable the Power On by PS/2 mouse function.
Conguration options: [Disabled] [Enabled]