- 1). Power on or restart the computer.
- 2). Press the BIOS setup hotkey. This key is often displayed briefly when the computer is first powered on. Common keys are "Del" and "F2."
- 3). Navigate to the "Frequency / Voltage Control" category with the arrow keys. Your motherboard may have a differently-named category, or none at all.
- 4). Press "Enter" to view the FSB frequency. Common frequencies are between 133 and 400MHz.
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