Asus P4S800-MX - Manual (Page 48)

2-16 Chapter 2: BIOS information
CPU External Frequency (MHz) (when CPU Speed is set to [Manual])
This feature tells the clock generator what frequency to send to the system bus
and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple
equals the CPU speed.
Keyboard Auto-Repeat Rate [6/Sec]
This controls the speed at which the system registers repeated keystrokes.
Options range from 6 to 30 characters per second. Configuration options: [6/Sec]
[8/Sec] [10/Sec] [12/Sec] [15/Sec] [20/Sec] [24/Sec] [30/Sec]
Keyboard Auto-Repeat Delay [1/4 Sec]
This field sets the time interval for displaying the first and second characters.
Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec]
2.4 Advanced Menu
CPU Speed [Manual]
When the motherboard is set to JumperFree™ mode, this field allows you to select
the internal frequency of the CPU. Select [Manual] if you want to make changes to
the two subsequent fields. Note that selecting a frequency higher than the CPU
manufacturer recommends may cause the system to hang or crash.
CPU Frequency Multiple (when CPU Speed is set to [Manual])
This field sets the frequency multiple between the CPU’s internal frequency (CPU
speed) and external frequency. Set this field in conjunction with CPU Frequency
(MHz) to match the speed of the CPU.
The item CPU Frequency Multiple is accessible only if you have an unlocked
processor. If your processor frequency multiple is locked, you cannot change
the setting of this item.