Why is my processor speed incorrect?

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This can be corrected with a BIOS change or a jumper on the mother board.

This happens mostly with AMD chips due to various FSB speeds. Most often it
has to do with the BIOS settings being reset to defaults.
Your cpu clock speed in the BIOS will be default at the lower speed (FSB).

To fix this:

  • 1. Reboot the pc.
  • 2. Press the DELETE key when prompted (press DEL to enter setup).
  • 3. Tab to the 'CPU PnP' or 'Frequincy and Voltage Control' option and press enter
    • Change FSB (cpu freq) to 133 or 166 depending on the CPU installed
    • (PGUP/PGDN will change values). ***WARNING SETTING YOUR FSB HIGHER THAN WHAT YOUR CPU REQUIRES WILL CAUSE DAMAGE THAT IS NOT COVERED BY WARRANTY
  • 4. Press ESC to return to main screen.
  • 5. Press F10 to save & exit (saving current changes).
  • System will continue to boot into Windows.


When finished your CPU should be running at full speed.