How to Control Fans on an ATI Mobility Radeon HD 3670

Written by mike venture
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How to Control Fans on an ATI Mobility Radeon HD 3670
If the fan on your graphics card is too loud, consider a passive-cooling option, like this heatsink-only solution. (Computer graphic card isolated over white image by rgbspace from

The fan on a graphics card can sometimes be unnecessarily loud. This can be the case even when you're not playing a game. Fortunately, with the latest software from ATI, it's easy to control the speed of your graphics card's fan.

Skill level:


  1. 1

    Go to the website

  2. 2

    Click "Download graphics drivers."

  3. 3

    Select "Notebook Graphics" in the first drop-down box.

  4. 4

    Select "Mobility Radeon Series" in the second box.

  5. 5

    Select "Mobility Radeon HD 3xxx Series" in the third box.

  6. 6

    Select your operating system in the fourth box.

  7. 7

    Click the "Display Results" button.

  8. 8

    Click the "Download" button and save the file to your desktop.

  9. 9

    Double-click the file on your desktop once the download is finished.

  10. 10

    Follow the on-screen instructions.

  11. 11

    Restart the computer.

  12. 12

    Open ATI Catalyst Control Center by right-clicking on an empty area of the desktop and selecting "Catalyst Control Center."

  13. 13

    Click the "Graphics" button in the upper-left corner and select "ATI Overdrive."

  14. 14

    Put a check mark in the box labelled "Enable ATI Overdrive."

  15. 15

    Put a check mark in the box labelled "Enable Manual Fan Control."

  16. 16

    Use the slider to set the fan speed to the desired level as a percentage of the fan's maximum speed.

  17. 17

    Click the "Apply" button. Close the Catalyst Control Center.

Tips and warnings

  • Setting your fan's speed too low can cause damage to your card.

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