Asus M2A-MX - Manual (Page 68)

2-20 Chapter 2: BIOS setup
Selecting a very high CPU frequency may cause the system to become
unstable! If this happens, revert to the default setting.
Processor Frequency Multiplier [Auto]
Allows you to select the processor frequency. The configuration options vary
depending on the CPU installed. Configuration options: [Auto] [x4.0 800MHz]
[x4.5 900 MHz] [x5.0 1000MHz] [x5.5 1100 MHz] [Reserved] [x6.5 1300 MHz]
[Reserved] [x7.5 1500 MHz] [x8.0 1600 MHz] [x8.5 1700 MHz] [x9.0 1800
MHz]
Processor Voltage [Auto]
Allows you to select the processor voltage or set it to auto for safe mode.
Configuration options: [1.400V] [1.375V] [1.350V]...[0.800V][Auto]
CPU/HT Reference Clock (MHz) [200]
Displays the frequency sent by the clock generator to the system bus and
PCI bus. The value of this item is auto-detected by the BIOS. Use the <+>
and <-> keys to adjust the CPU frequency. You can also type the desired
CPU frequency using the numeric keypad. The values range from 200 to 300.
AMD Overclocking Configuration
Processor Frequency Multiplier [Auto]
Processor Voltage [Auto]
AMD Overclocking Configuration
Options
Auto
x4.0 800 MHz
x4.5 900 MHz
x5.0 1000 MHz
x5.5 1100 MHz
Reserved
x6.5 1300 MHz
Reserved
x7.5 1500 MHz