7 boot menu, 1 boot device priority, 6 anti surge support – Asus M4A87T User Manual
Page 66: Boot menu -24 2.7.1, Boot device priority -24, Anti surge support -24, 1st ~ xxth boot device [xxx drive, Cpu fan speed low limit [200 rpm

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Chapter 2: BIOS information
2.7
Boot menu
The Boot menu items allow you to change the system boot options. Select an item then
press
Select Screen
Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2010, American Megatrends, Inc.
Boot Settings Configuration
Security
Specifies the Boot
Device Priority
sequence.
A virtual floppy disk
drive (Floppy Drive B:)
may appear when you set
the CD-ROM drive as the
first boot device.
M4A87T BIOS Setup
Main Ai Tweaker Advanced Power
Boot
Tools Exit
Boot Device Priority
Boot Settings
Version 0210
2.7.1
Boot Device Priority
1st ~ xxth Boot Device [xxx Drive]
These items specify the boot device priority sequence from the available devices. The number
of device items that appears on the screen depends on the number of devices installed in the
system. Configuration options: [Removable Dev.] [Hard Drive] [ATAPI CD-ROM] [Disabled]
CPU Fan Max. Duty Cycle(%) [100%]
Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The values range from
20% to 100%. When the CPU temperature reaches the upper limit, the CPU fan will operate at
the maximum duty cycle.
CPU Lower Temperature [20ºC/68ºF]
Displays the lower limit of the CPU temperature.
CPU Fan Min. Duty Cycle(%) [20%]
Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The values range from
0% to 100%. When the CPU temperature is under the lower limit, the CPU fan will operate at the
minimum duty cycle.
CPU Fan Speed Low Limit [200 RPM]
Allows you to manually set a lower limit for the CPU fan speed. If the CPU fan speed is below
the specified limit, the system sends out warning beeps. Configuration options: [500 RPM]
[400 RPM] [300 RPM] [200 RPM] [100 RPM] [Ignored]
2.6.6
Anti Surge Support
Enables or disables the Anti Surge support. Configuration options: [Disabled] [Enabled]