How to Enable a USB on an Asus P5Q Motherboard

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USB (Universal Serial Bus) ports can be disabled by the motherboard; they will not work regardless of software settings. In order to restore that functionality, you need to access the BIOS and change the settings to allow USB function. USB ports are disabled by system administrators to prevent the use of USB devices by normal users; this is typical of public terminals or work environments. The BIOS (Basic Input/Output System) is the boot software run by the motherboard when it first starts up to detect hardware and test its functionality. By changing the settings, you can choose which hardware you want the motherboard to use and how.

  • Turn on the computer or restart it.

  • Hold down the "delete" key immediately after the computer starts up; gray text on your screen is indicative of the computer booting up. Pressing the key will open the BIOS menu so you can enable the USB ports.

  • Navigate to the "Advanced" menu and highlight "USB Configuration." Press enter.

  • Change "USB Functions," "USB 2.0 Controller" and "Legacy USB Support" to "Enabled."

  • Change "USB 2.0 Controller Mode" to "HiSpeed" to have USB operating at 480 megabits per second, or to "FullSpeed" if you need USB ports operating at 12 megabits per second. If you're unsure of the difference, choose "HiSpeed."

  • Press "F10" to save your changes and exit BIOS.

Tips & Warnings

  • Never change BIOS settings without prior knowledge of their function. Incorrect settings can permanently damage your hardware.

References

  • Photo Credit usb image by Anthony CALVO from Fotolia.com
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