Abit AX8 Series User Manual page 29

BIOS Setup
PCI-E Frequency:
This item selects the PCI Express frequency.
PCI Frequency:
This item determines the PCI bus frequency. This option allows you to keep your 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.
DDR Ref. Offset Voltage:
This item selects the offset of reference voltage for DRAM slot.
NB Voltage:
This item selects the NB voltage.
SB Voltage:
This item selects the SB voltage.
HyperTransport Voltage:
This item selects the voltage for LDT Bus.
<F8> "OC On The Fly" function key:
After a new configuration on items "External Clock" and "Voltage", pressing <F8> button now in this
menu will make it become effective immediately.
ATTENTION: An external clock too much over its specification may cause the system unstable or even
fail, please proceed with highly attention.
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User's Manual