Asus P5B SE - Manual (Page 78)

4- Chapter 2: BIOS setup
PCI Express Frequency [Auto]
Allows you to select PCI Express frequency.
Configuration options: [Auto] [0] [] [2] [3]... [50]
Overclock Options [Standard]
Allows you to set the overclock percentage. This item appears when you set the
AI
Overclocking item to [Overclock Profile].
Configuration options: [Standard] [Overclock 5%] [Overclock 0%]
[Overclock 5%] [Overclock 20%] [Overclock 30%]
Memory Voltage [1.80V]
Allows you to manually set the memory voltage.
Configuration options: [.0V] [.0V]
Spread Spectrum [Auto]
Allows you to set the clock generator spread spectrum.
Configuration options: [MANUAL] [Auto]
The following items appear only when the AI Tuning item is set to [MANUAL] or
[Overclock Profile].
CPU Clock Spread Spectrum [Enabled]
Enables or disables the CPU clock spread spectrum.
Configuration options: [Disabled] [Enabled]
PCIE Clock Spread Spectrum [Disabled]
Allows you to set the PCIE clock spread spectrum.
Configuration options: [Disabled] [Enabled]
FSB/CPU External Frequency Synchronization
Front Side Bus CPU External Frequency
FSB 0 2 MHz
FSB 00 200 MHz
FSB 533 33 MHz