How to Overclock an Asus P5KC

Written by sebastian malysa
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How to Overclock an Asus P5KC
Overclock your ASUS P5KC motherboard for an added performance boost. (motherboard image by dinostock from

Overclocking is the process of accelerating computer hardware clock speeds beyond factory settings for an additional performance boost. Overclocking depends significantly on heat sink and cooling devices. A thorough understanding of your computer's internal components is essential when overclocking your ASUS P5KC. The trial and error process of overclocking is challenging and requires multiple attempts before you can acquire an ideal performance boost for your computer. Overclocking can cause irreversible damage to your computer's internal components if you are not careful. With the right instructions and patience, you will be able to overclock your ASUS P5KC safely.

Skill level:

Things you need

  • Prime 95

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  1. 1

    Restart your computer and press the "Delete" button on your keyboard during start-up to enter the BIOS configuration menu.

  2. 2

    Using the arrow keys, navigate to the "Tweaks" menu option at the top of the screen.

  3. 3

    Navigate to the "FSB Strap to North Bridge" and press "Enter" to confirm that you would like to adjust the value. Increase the value to the next available option (for example, from 200Mhz to 266Mhz) and press "Enter."

  4. 4

    Navigate to the "FSB Frequency" option, press "Enter" and increase the frequency by increments of 10Mhz (for instance, from 200Mhz to 210Mhz). Navigate to "CAS# Latency" and increase it from four DRAM Clocks to five DRAM Clocks. Navigate to "RAS# Precharge" and change it from four DRAM Clocks to five DRAM Clocks. Navigate to "RAS# Active Time" and change it from 13 DRAM Clocks to 15 DRAM Clocks.

  5. 5

    Navigate to "CPU Voltage" and increase the value from 1.2750 to 1.2875. Navigate to "DRAM Voltage" and increase the value from 2.00 to 2.10. Navigate to the "Exit" menu at the top of the screen and select the "Save and Exit" option to restart your computer.

  6. 6

    Download and install Prime 95, a free overclocking testing tool. Close all programs on your computer and open Prime 95. Run the "Torture Test" for at least 15 to 30 minutes. If no errors appear, restart your computer and enter the BIOS menu. Increase the values in the options listed in Steps 3 to 5 by a small amount, no more than the amount you initially increased them. Save and restart your computer. Run Prime 95 and initiate the "Torture Test." Repeat this process until you find the optimum performance boost for your computer.

Tips and warnings

  • Overclocking is a slow process --- don't rush. If you accelerate your clock speeds too quickly or by too much, you could cause a sudden heat flash that could damage your computer's internal components. Overclock in small increments and test to get results safely.
  • Consider upgrading your heat sink and cooling devices for an even greater overclocking boost.

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