Asus P4C800-E Deluxe User Manual page 84

AGP/PCI Frequency (MHz) [Auto]
Allows you to adjust to a higher AGP/PCI frequency for better system
performance and overclocking capability. Configuration options: [Auto]
[66.66/33.33] [72.73/36.36] [80.00/40.00]
Selecting a very high AGP/PCI frequency may cause the system to
become unstable! If this happens, revert to the default setting.
CPU VCore Voltage [Auto]
Allows you to select a specific CPU VCore voltage. Configuration options:
[Auto] [1.6000V] ... [1.4750V]
Refer to the CPU documentation before setting the CPU VCore
voltage. A very high Vcore voltage may severely damage the CPU!
DDR Reference Voltage [Auto]
Allows selection of the DDR SDRAM operating voltage. Configuration
options: [2.85V] [2.75V] [2.65V] [2.55V] [Auto]
AGP VDDQ voltage [1.50V]
Allows selection of the AGP operating voltage. Configuration options:
[1.80V] [1.70V] [1.60V] [1.50V]
4-16 Chapter 4: BIOS Setup