Replacing The System Battery - Dell Precision 410 User Manual

9. Rotate the power supply back into position, mak-
ing sure that the securing tab snaps into place.
10. Replace the computer cover, reconnect your com-
puter and peripherals to their power sources, and
turn them on.
As the system boots, it detects the presence of the
new processor and automatically changes the system
configuration information in the System Setup pro-
gram. If you installed a second microprocessor, the
following message is displayed:
Second processor detected
11. Enter the System Setup program, and confirm
that the top line in the system data area correctly
identifies the installed processor(s).
See Chapter 3, "Using the System Setup Program."
12. If you installed a second microprocessor and your
system is running Windows NT 4.0, reinstall the
operating system.
See your Windows NT documentation for
instructions.
When you reinstall Windows NT 4.0, the operating
system detects the second microprocessor.
13. Run the Dell Diagnostics to verify that the new
microprocessor is operating correctly.
See your Diagnostics and Troubleshooting Guide for
information on running the diagnostics and trouble-
shooting any problems that may occur.
R
eplacing the System Battery
A 3.0-V CR2032 coin-cell battery installed on the system
board maintains system configuration, date, and time
information in a special section of memory.
The operating life of the battery can extend up to ten
years. The battery may need replacing if an incorrect time
or date is displayed during the boot routine along with a
message such as:
Time-of-day not set — please run SETUP
program
or
Invalid configuration information —
please run SETUP program
or
Strike the F1 key to continue,
F2 to run the setup utility
To determine whether the battery needs replacing, reenter
the time and date through the System Setup program and
exit the program properly to save the information. Turn
off and unplug your system for a few hours, and then
plug in and turn on your system. Enter the System Setup
program. If the date and time are not correct in the Sys-
tem Setup program, replace your battery.
You can operate your system without a battery; however,
without a battery, the system configuration information
maintained by the battery is erased if the system is
unplugged or alternating current (AC) power is lost. In
this case, you must enter the System Setup program and
reset the configuration options.
WARNING: There is a danger of the new battery
exploding if it is incorrectly installed. Replace the
battery only with the same or equivalent type rec-
ommended by the manufacturer. Discard used
batteries according to the manufacturer's instruc-
tions.
Use the following procedure to replace the system battery
with another CR2032 coin-cell battery:
1. If you have not already done so, make a copy of
your system configuration information in the Sys-
tem Setup program.
If the settings are lost while you are replacing the
battery, you can refer to your written or printed copy
of the system configuration information to restore
the correct settings. See Chapter 3, "Using the Sys-
tem Setup Program," for instructions.
Installing System Board Options 8-9