Watch Dog Timer - Albatron KX400-8XV User Manual

Formulas
CPU Speed = CPU Clock Ratio * CPU Host Frequency
DDR Speed = DDR: CPU Ratio * CPU Host Frequency
(The CPU Clock Ratio is usually locked by the CPU manufacturer which means it will not be
displayed. You can adjust the CPU Host Frequency to change the CPU speed. For more details,
please refer to the Frequency / Voltage Control section in BIOS.)
Note: The AGP and PCI frequencies are both calculated from the CPU Host frequency according to
the table below. To determine your frequencies, first locate the row that corresponds to the "Default
CPU Host Frequency" for your system. Then, calculate the AGP and PCI frequencies according to
the formulas in the adjacent cells.
Default CPU Host
Frequency
100 MHz
133 MHz
166 MHz
(You can adjust the "CPU Host Frequency" in the BIOS Setup Utility. If you do not adjust the option,
then the default CPU Host Frequency will be equal of CPU Clock.)

Watch Dog Timer

This mainboard comes with a special feature called "Watch Dog Timer" which is used to detect when
the system is unable to boot using the manual over-clocking configurations. After you power on the
system, BIOS will check the last system POST status. If it was successful, BIOS will set the user
configured values stored in the CMOS. If unsuccessful, the "Watch Dog Timer" will restore system
defaults in the CMOS and reset the system.
On most systems you would need to remove the cover of your system and re-jumper the clear CMOS
switches on the mainboard when your system encounters over-clocking problems. With the "Watch
Dog Timer", overclocking settings will be automatically cleared and reset.
Before Overclocking
Please make sure your system components are capable of
overclocking.
If you are not familiar with the overclocking, we strongly
recommend that you to set the clock to the default settings.
PCI frequency
CPU Host frequency ÷ 3 CPU Host frequency * (2/3)
CPU Host frequency ÷ 4 CPU Host frequency * (2/4)
CPU Host frequency ÷ 5 CPU Host frequency * (2/5)
10
KX400-8XV V2.0 Series
AGP frequency