- Main
- Advanced
  - JumperFree Configuration
    - Ai Overclocking
    - CPU Ratio Contol
      Ratio CMOS Setting
    - FSB Frequency
    - PCIE Frequency
    - DRAM Frequency
    - DRAM Timing Control
      - CAS# Latency
      - RAS# to CAS# Delay
      - RAS# Precharge
      - RAS# Activate to Precharge
      - TWR
      - TRFC
      - TWTR
      - TRRD
      - TRTP
    - DRAM Static Read Control
    - Transaction Booster
      - Relax Level/Boost Level
    - Clock Over-Charging Mode
    - CPU Spread Spectrum
    - PCIE Spread Spectrum
    - CPU Voltage
    - CPU Voltage Reference
    - CPU Voltage Damper
    - CPU PLL Voltage
    - DRAM Voltage
    - FSB Termination Voltage
    - North Bridge Voltage
    - North Bridge Voltage Reference
    - South Bridge Voltage
  - USB configuration
    - USB Functions
    - USB 2.0 Controller
    - USB 2.0 Controller Mode
    - BIOS EHCI Hand-Off
    - Port 64/60 Emulation
    - Legacy USB Support
  - CPU Configuration
    - CPU Ratio Control
      - Ratio CMOS Setting
    - C1E Support
    - Max CPUID Value Limit
    - Vanderpool Technology
    - CPU TM Function
    - Execute Disable Bit
    - PECI
  - Chipset
    - Memory Remap Feature
    - Initiate Graphic Adapter
    - PEG Port Control
      - PEG Port Force x1
    - ASUS C.G.I. Function
  - Onboard Devices Configuration
    - High Definition Audio
      - Front Panel Type
    - J-Micron eSATA/PATA Controller
      - Controller Mode
    - Realtek Gigabit LAN
      - LAN Boot ROM
    - Marvell GigaBit LAN
      - LAN Boot ROM
    - Realtek Wireless LAN
    - Agere Firewire 1394
    - Serial Port1 Address
  - PCIPnP
    - Plug And Play O/S
- Boot
  - Boot Device Priority
  - Hard Disk Drives
  - Boot Settings Configuration
  - Security
- Power
  - Suspend Mode
  - Repost Video on S3 Resume
  - ACPI 2.0 Support
  - ACPI APIC Support
  - APM Configuration
    - Restore on AC Power Loss
    - Power On By RTC Alarm
    - Power On By External Modems
    - Power On By PCI Devices
    - Power On By PCIE Devices
    - Power On By PS/2 Keyboard
  - Hardware Monitor
    - CPU Q-Fan Control
    - Chassis Q-Fan Control
- Tools
  - ASUS EZ Flash 2
  - ASUS O.C. Profile
  - Ai Net 2
- Exit
  - Exit & Save Changes
  - Exit & Discard Changes
  - Discard Changes
  - Load Setup Defaults

DRAM Static Read Control
This will limit the overclockability of your memory. I will disable it for Overclocking.

Transaction Booster
This would boost the performance for Super PI. According to the X-Bit Labs, this would only gain little performance boost and only works on lower latency settings. Kindly refer to this link - X-bit Labs review for more information about Transaction Booster. To play around with this Transaction Booster, you got to set DRAM Static Read Control as well. At the end of the day, tried to lower the Performance Level in Memset as possible.

Clock Over-Charging Mode
Leave Clock Overcharging Mode alone, leave it AUTO or Disabled.

CPU Spread Spectrum
Disabled for Overclocking.

PCIE Spread Spectrum
Disabled for Overclocking.

CPU Voltage Reference
CPU Voltage Reference is GTL Reference for the Signalling on the board.

CPU PLL Voltage
PLL is Phase locked loop voltage and helps raise the FSB wall.  Intel max is 1.6v.

FSB Termination Voltage
FSB Termination Voltage is CPU Vtt or Signalling termination voltage.  Intel max is 1.55v.

North Bridge Voltage Reference
NB Voltage Reference is GTL Reference for the Signalling on the board.

Hi.User of Asus P5K Pro here. Been using both E8400 and E2160 on this mobo. Performance is quite good, with a good range of voltage control.

Here's the performance of my mobo running an E8400 :

CPU : Core2Duo E8400
CPU clockspeed : 4.250 MHz (500 x 8.5)
Motherboard : Asus P5K Pro (Bios rev 0806)
RAM model : Crucial Ballistix Tracer PC6400
RAM capacity : 1GB X 2
RAM speed : 500 MHz, CL4-5-4-12
RAM mode : Dual channel
Voltage detail :
VCore : 1.375V
VDimm : 2.2V
PLL Voltage : 1.6V
FSB Termination Voltage : 1.32V
NB Voltage : 1.47V
PSU : FSP Epsilon 600W, and currently using Mushkin Enhanced 580W modular

Idle temp : 42C
Full load test (running Orthos) : 57C