When you "start" the computer, and the {"Screen"} displays a "Error Message."[CMOS] "error checksum!"
Settings: "Default" loaded.A "checksum error" shows that:
The ("Boot-up Settings "have been changed?"), ie. "Booting OS."
*Boot File 'missing'.
"This can 'occur' if the computer was "shut-down unexpectedly."
Force Shut-down : Power lost; due to 'low battery...'
A ("Power Surge") can cause this 'problem' also.
"What 'happens is that the [CMOS] settings are lost!".
"To fix the problem!"
Do the following:
"Restart / Boot the computer.
Next, verify if the 'error message' displays?
If you are still getting the message?
"You will have to "Remove the CMOS battery form the computer!"
Shut-down the computer.
"Unplug the computer from the {Wall Out-let}.
Remove the Lithium battery from the "Notebook."
There is a compartment (underneath) the "Notebook that 'store' the CMOS battery."
"You will need a {very small Phillips screwdriver}. *Remove the CMOS battery for: [30 minutes].
!Important: If you have to do it again?
Remove the CMOS battery for a {'longer amount of time'}.
Replace the "CMOS battery."
Next, "Only plug the Power Adapter into the computer.
"Do not - replace the "Lithium battery!"
Once you have completed these 'task'.
"Restart the computer."
"Press the [F2] key, to 'enter' the CMOS / BIOS Setup!"
Next, 'reset' (all) "Values to the Default Settings."
"Press the [F10] key to 'Save' the changes!"
!Important: "Take a 'moment to rate the help', so I can get 'credit' for the work.
Thank you!" - paul7of9
"Download the Manuals!"
!Important: "Take a 'moment to rate the help', so I can get 'credit' for the work.
Thank you!" paul7of9
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