Abit AT8 32X User Manual page 31

BIOS Setup
CPU Operating Speed:
This item displays the CPU operating speed according to the type and speed of your CPU. You can also
select the [User Define] option to enter the manual option.
User Define:
WARNING: The wrong settings of the multiplier and external clock in certain circumstances may cause
CPU damage. Setting the working frequency higher than the PCI chipset or processor specs, may cause
abnormal memory module functioning, system hangs, hard disk drive data loss, abnormal functioning of
the VGA card, or abnormal functioning with other add-on cards. Using non-specification settings for your
CPU is not the intention of this explanation. These should be used for engineering testing, not for normal
applications.
There will be no guaranty for the settings beyond specification, any damage of any component on this
motherboard or peripherals result therein is not our responsibility.
Multiplier Factor:
This item displays the multiplier factor for the CPU you installed.
External Clock:
This item selects the external clock frequency. Due to the specification limit of the CPU you installed, the
speed you set over its standard bus speed is supported, but not guaranteed.
Estimated New CPU Clock
This item estimates the new CPU clock when the next time the system starts. The value is decided by the
values of "Multiplier Factor" and "External Clock".
PCIE Clock
This item selects the PCI Express frequency.
Voltages Control:
This option allows you to switch between the default and user-defined voltages. Leave this setting to
default unless the current voltage setting cannot be detected or is not correct. The option "User Define"
enables you to select the following voltages manually.
CPU Voltage:
This item selects the CPU core voltage.
NB 1.8V Voltage:
This item selects the NB 1.8V voltage.
DDR Voltage:
This item selects the voltage for DRAM slot.
HyperTransport Voltage:
This item selects the voltage for LDT Bus.
NB 1.2V Voltage:
This item selects the NB 1.2V voltage.
DDR Reference Voltage:
This Item selects the voltage for DDR memory reference.
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User's Manual