How to Adjust Your FSB Speed

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Use the basic input output system, or BIOS, to adjust your front side bus speed. The FSB helps determine the processing speed and power consumption of your computer. The FSB is expressed in megahertz and when multiplied by the number of commands it sends per clock cycle, called the multiplier, it shows the computer speed rating we are used to seeing. For example, an Intel central processing unit rated at 3.2 gigahertz has an FSB speed of 800 megahertz that has a multiplier of four.

  • Turn on or restart your computer to begin the boot process.

  • Push the correct button to enter the BIOS menu when the message flashes at the bottom of your screen during the initial stage of the boot sequence. Common BIOS menu buttons include "DEL," "F2," "F10" and "CTRL+ENTER." Read the message at the bottom of the screen or consult the user's manual to determine the correct button or button combination for your system.

  • Use the arrow keys to navigate to the FSB settings menu. The menu may be labeled in a variety of ways depending on the manufacturer. Common menu labels include "FSB Speed," "FSB multiplier" and "Clock speed."

  • Press the appropriate button to enter the FSB menu. In most cases, highlight the menu label and press "ENTER."

  • Highlight the FSB option you want to adjust and press "ENTER." Common options include the multiplier value, the number of commands per cycle and the base FSB speed expressed in megahertz.

  • Increase the numbers to perform overclocking, which makes the computer run faster. Decrease the numbers to perform underclocking, which makes the computer run slower. Increase or decrease the megahertz values by no more than 10 MHz.

  • Press the save key as indicated by the message in the lower-right part of the BIOS menu. The "F10" key is commonly used as the "Save and Exit" key for most BIOS systems.

  • Test the computer at the new settings. Allow the computer's boot sequence to complete. Run a program that requires a large amount of memory. Graphics editing and video editing programs are good examples. Compare the load times and rendering times of the programs with the new FSB settings to the way they worked before the change.

  • Repeat the entire process to increase or decrease the FSB speed until the programs run at optimal speed.

Tips & Warnings

  • Increasing the FSB speed too much may result in permanent system damage.

References

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