Question about HP Compaq Presario C500t Notebook

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My laptop keyboard not work at booting time

My laptop keyboard not work at booting time

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Hello,
I would first try to reset the CMOS according to the manufacturer's instructions provided on the manual.
Try that, and please report back the results.

You might wonder what is CMOS?
Complementary metal oxide semiconductor (CMOS)
is a type of semi-conductor chip that holds data without requiring an external power source. In a personal computer (PC), CMOS holds the basic instructions the computer needs to initialize its hardware components and boot up. These settings are known as the basic input output settings (BIOS), also referred to as CMOS settings.

Steps to Reset CMOS - BIOS Setting.
Turn on your computer and press the key on your keyboard to enter the BIOS. This is typically the Del (delete) key. Pre-built systems from major manufacturers may use a function key such as F1, F2, or F10. Go to the last tab or page of your BIOS. Select an option similar to "restore factory settings". Save your changes and confirm your selection if necessary. This will often be combined with the process of exiting a BIOS. Some BIOS types may have this as a separate option such as "F10: Save Changes".
Please let me know if you have any further questions or concerns.
Thanks.

Posted on May 04, 2010

  • CIROC TECH SUPPORT
    CIROC TECH SUPPORT May 04, 2010

    Also there's alternate method:


    Locate a rocker-style switch at the back of your PC (if applicable), and switch it from the on position (I) to the off position (O).


    Remove the CMOS battery. This should be a regular 3V, round, flat watch battery.


    Wait at least 5 minutes.


    Reinsert the CMOS battery


    Move the rocker-style switch at the back of your PC (if applicable), to the on (I) position


    Power on your PC with its front power button

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Cool ..............
u change bios options( keyboard )

Posted on Jun 01, 2010

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