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Removing and Replacing Parts 49
3 Update the BIOS using a flash BIOS update program diskette or CD.
NOTE: For instructions to update or flash the BIOS, see the
Dell
Portable Computer BIOS Update Guide
.
Reserve Battery
NOTICE: The reserve battery provides power to the computer’s RTC and
NVRAM when the computer is turned off. Removing the battery causes the
computer to lose the date and time information as well as all user-specified
parameters in the BIOS. If possible, make a copy of this information before
you remove the reserve battery.
Removing the Reserve Battery
NOTICE: Disconnect the computer and any attached devices from electrical
outlets, and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or
by touching an unpainted metal surface on the computer.
NOTICE: Read "Preparing to Work Inside the Computer" before performing
the following procedure.
Reserve Battery
reserve battery
reserve battery
connector
reserve battery
cable