Abit AS8 User Manual page 29

BIOS Setup
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.
Multiplier Factor:
This item displays the multiplier factor for the CPU you installed.
N/B Strap CPU As:
This item sets the external hardware reset strap assigned to MCH (Memory Controller Hub). The options
are: [PSB533], [PSB667], [PSB800], and [By CPU]. The default setting is By CPU.
To set this option manually:
•
Select [PSB533] for CPU of 133MHz FSB frequency.
•
Select [PSB667] for CPU of 166MHz FSB frequency.
•
Select [PSB800] for CPU of 200MHz FSB frequency.
DRAM Ratio (CPU:DRAM):
This item determines the frequency ratio between CPU and DRAM.
AGP/PCI Clock:
This item determines the AGP/PCI bus frequency. This option allows you to keep your AGP/PCI clock at
some fixed frequency to improve system stability.
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 Core Voltage:
This item selects the CPU core voltage.
DDR SDRAM Voltage:
This item selects the voltage for DRAM slot.
NB/AGP Voltage:
This item selects the NB/AGP voltage.
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User's Manual