Dell Dimension 2200, Руководство пользователя

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Installing System Board Options 7-11
To determine whether the battery needs replacing, re-enter
the time and date through the System Setup program, and exit
the program properly to save the information. Turn off your sys-
tem and disconnect it from AC power for a few hours, and then
reconnect power and turn it on again. Enter the System Setup
program. If the date and time are not correct in the System Setup
program, replace your battery.
NOTES: Some software may cause the system time to
speed up or slow down. If your system seems to operate
normally except for the time kept in the System Setup pro-
gram, the problem may be caused by software rather than
by a defective battery.
If you leave your system disconnected from AC power for
long periods of time (weeks or months), the NVRAM may
lose its system configuration information. This situation
is not caused by a defective battery.
You can operate your system without a battery; however,
the system configuration information is erased each time
you turn off the computer and disconnect it from AC
power. In this case, you must enter the System Setup pro-
gram and reset the configuration options each time you
boot your system until you can replace the battery.
Use the following procedure to replace the computer
battery:
1. If you have not already done so, make a copy of
or print your system configuration information in
the System Setup program.
If the settings are lost while replacing the battery,
refer to your written or printed copy to restore the
correct settings. See Chapter 4, “Using the System
Setup Program,” for instructions.
2. Remove the computer cover according to the
instructions in “Removing the Computer Cover”
in Chapter 6.
3. Lay the computer on its right side on a flat work
surface to allow access to the battery on the sys-
tem board.
4. Remove any PCI expansion cards that prevent
access to the battery.
See “Removing an Expansion Card” found earlier in
this chapter. Be sure to label any external connec-
tions to the PCI cards when you remove them to
facilitate correct reinstallation.
5. Remove the old battery.
Pry the backup battery out of its socket with your
fingers or a blunt object, such as a plastic
screwdriver.
NOTE: Dispose of the old battery in accordance
with local ordinances.
6. Install the new battery with the side labeled “+” fac-
ing up.
Place the new battery in the socket, and press down
on it until the battery snaps into the socket.
7. If you removed any PCI expansion cards, replace
them according to the instructions in “Installing
an Expansion Card” found earlier in this chapter.
8. Replace the computer cover according to the
instructions in “Replacing the Computer Cover”
in Chapter 6, reconnect your computer and
peripherals to their power sources, and turn them
on.
9. Enter the System Setup program, and confirm
that the battery is operating properly. See Chap-
ter 4, “Using the System Setup Program.”
Enter the correct time and date through the System
Setup program’s Time and Date categories. Also, re-
enter any system configuration information that is no
longer displayed on the System Setup screens, and
then exit the System Setup program.
CAUTION: See “Protecting Against Electro-
static Discharge” in the safety instructions at
the front of this guide.