What Causes The BIOS Jumper And How To Fix It


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    You may encounter an error message indicating the bios jumper. Now there are a few steps you can take to fix this problem, so we will discuss them shortly. The BIOS jumper (Input/Output System) is a small device used to configure certain settings in the BIOS of any computer. The jumper is attached to a series of metal pins on the computer’s motherboard that form a powerful circuit and set the most efficient settings.

    AVADirect’s Guide Tocleaning CMOS (reset BIOS)

    There is an onboard CMOS memory for storing system configuration data, externally powered by an electric battery on the motherboard. If you want to clear the system configuration, set the jumper to clear the CMOS memory.
    There are several ways to reset CMOS. Most motherboards have a traditional “jumper”. As technology has advanced, the CMOS reset process has expanded to include built-in buttons and the complete removal of a few jumpers. CMOS reset methods are described in the following cases.

    – Reset BIOS To Default Path (clear CMOS Values) “Jumper”

    What is a password jumper?

    Reset the desktop BIOS password. The jumper is a small plastic sleeve that sits inside your laptop.

    1. Turn off the computer and unplug the power cable.
    2. Use a jumper level (a small screw is sufficient) to short the CMOS
    pins3. Hold the jumper (screwdriver) in place for approximately 5-10 seconds
    4. Remove the special jumper (screwdriver) from the impact pins
    5. Connect the power cord and try to turn on the user’s computer as normal

    – Reset BIOS To Default (clear CMOS) “Battery”

    1. Turn off the computer and unplug the power cord.
    2. Locate the CMOS battery
    3. Using a small flathead screwdriver, press down on the pin that holds the battery in and pry the battery out of each slot.
    4. Disconnect the battery from the new outlet for 5-10 seconds.
    5. Insert the battery back into the socket
    6. Connect and turn on the desktop computer asusually

    Image of a conventional CMOS battery and aria-scribeby=”caption-attachment-2725″>
    CMOS- Newer batteries are connected via a 2-pin cable

    – Reset BIOS To Default (clear CMOS Values) “BIOS Key”

    1. Turn off the computer and unplug the power cord.
    2. Locate the “cmos” button on the back of the board closer to the I/O connectors
    3. Press and hold the “CMOS” button for 5-10 seconds
    4. Connect the power cord and use your computer as usual

    If you can’t access a good computer because it’s protected by a good BIOS and your password, your only option is to clear the CMOS by setting the reset jumper on the motherboard. If you clear the CMOS manual stored on the motherboard, the basic hardware settings of the personal computer will revert to our own factory settings and the password will effectively be disabled. CMOS Reset DetailsThe strength of the jumpers varies depending on the motherboard, but the basic technique remains the same.


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    Remove these computers and remove the outer protective cover. If your computer is a full tower computer, lay your desktop on its side to make it easier to connect to the motherboard.

    Step 2

    bios jumper

    Locate some CMOS reset jumpers on the motherboard. If possible, refer to the instructions that came with your motherboard and computer for the exact location. If you don’t have instructions, look for the jumper next to the power supply on the motherboard, although it’s often located elsewhere. A jumper is usually a small plastic tab that fits over several pins. On some motherboards there was an equally beautiful neighboring third contact. Most motherboards have multiple jumpers for different purposes, so be sure to create a jumper labeled “CMOS”, “CLEAR”, “CLR CMOS”, “PSWD”, or something similar.

    Step 3

    Where is the CMOS reset button?

    If you have a newer, fairly high-end motherboard, it often has a dedicated “Clear CMOS” button, either inside the rear I/O next to those USB connectors, or on the motherboard itself, usually along the board’s edges. To use, turn on the system, then press the reset button.

    Remove the jumper, starting with the pins. If there are 4 pins but the jumper is onstarts straight and closes only one, fasten both contacts to the jumper. If there is a specific third pin, place the jumper you see on the middle and third pins. Wait approximately 15-20 seconds, then return the jumper to its original country position.

    Step 4

    bios jumper

    Turn on the computer to see if I can tell the CMOS has been cleared. If there are frequent changes, do not turn off the laptop again.

    step 5

    Remove or move the jumper as before. This time turn on the computer with the jumper off or in the new position. Wait a few more seconds for the motherboard to reset the BIOS settings, and then turn off the main computer.

    Step 6

    Reset the jumper to its original position, then remove the outer case cover and place it back on the desktop.

    How do I restore my BIOS?

    Enter the BIOS setup program. See Accessing the BIOS.Press the F9 key to automatically load the factory default settings.Confirm your changes by highlighting OK and pressing Enter.To save your changes and exit any BIOS setup utility, press the F10 key.

    Alan Sembera began creating local newspapers in Texas and Louisiana. His professional experience includes the positions of computer technician, information application and tax agent. This time, Sembera writes constantly about business, and then about thosetechnologies. He holds a bachelor’s degree in journalism from Texas A&M University.

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