Subject

    Computer Science

    Topic

    Computer Hardware

    A CMOS checksum error on boot most likely means:

    a)
    Bad PSU
    b)
    BIOS needs update
    c)
    CMOS battery is weak
    d)
    HDD types are wrong

    Explanation

    A dead/weak coin cell loses settings and checksum, triggering the error. Replace battery and reconfigure.

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