Question about Acer Aspire 5100 Notebook

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I am having problems with my Acer Aspire 5100 laptop. The keyboard, touchpad, and usb ports are not working most of the time. Even when booting up a Windows installation or recovery CD they fail. I seems that when I reset the bios that the keyboard, touchpad, and usb work, but only till I change any bios settings. I cannot boot anything with default settings either because it gets stuck in a loop trying to network boot.lu

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  • lukespragg Dec 15, 2008

    Also, I have tried to remove the battery already and that did nothing.
    The screen also is black sometimes when I first turn it on.


  • lukespragg Dec 15, 2008

    It saves them, but once I change anything the keyboard, touchpad, and usb do not work. Once I've changed anything in there I can't get back into bios or install anything.

  • lukespragg Dec 15, 2008

    Actually, now that I have tested it further... it seems that the CMOS settings reset after the AC and battery are remover for 10+ mins or so. That is when the keyboard functions start to work again.

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Its time you need to replace the CMOS Battery. i suppose the battery is weak and it does not save any of the changed you do.

Posted on Dec 15, 2008

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