Dell Dimension 2400 Owner's Manual - Page 66

Replacing the Battery - reset button

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www.dell.com | support.dell.com Removing Memory CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. NOTE: Memory purchased from Dell is covered under your computer warranty. 1 Shut down the computer through the Start menu (see page 18). 2 Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now. NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack. 3 Disconnect any telephone or telecommunication lines from the computer. 4 Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. 5 Remove the computer cover (see page 49). 6 Press out the securing clip at each end of the memory module connector. 7 Grasp the module and pull up. If the module is difficult to remove, gently ease the module back and forth to remove it from the connector. Replacing the Battery CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. A coin-cell battery maintains computer configuration, date, and time information. The battery can last several years. If you have to repeatedly reset time and date information after turning on the computer, replace the battery. CAUTION: A new battery can explode if it is incorrectly installed. Replace the 3-V CR2032 battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. 1 Record all the screens in the system setup program (see page 74) so that you can restore the correct settings when your perform step 11. 2 Shut down the computer through the Start menu (see page 18). 66 Removing and Installing Parts

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66
Removing and Installing Parts
www.dell.com | support.dell.com
Removing Memory
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
NOTE:
Memory purchased from Dell is covered under your computer warranty.
1
Shut down the computer through the
Start
menu (see page 18).
2
Ensure that your computer and attached devices are turned off. If your computer and
attached devices did not automatically turn off when you shut down your computer, turn
them off now.
NOTICE:
To disconnect a network cable, first unplug the cable from your computer and then unplug it
from the network wall jack.
3
Disconnect any telephone or telecommunication lines from the computer.
4
Disconnect your computer and all attached devices from their electrical outlets, and then
press the power button to ground the system board.
CAUTION:
To guard against electrical shock, always unplug your computer from the electrical outlet
before opening the cover.
5
Remove the computer cover (see page 49).
6
Press out the securing clip at each end of the memory module connector.
7
Grasp the module and pull up.
If the module is difficult to remove, gently ease the module back and forth to remove it from
the connector.
Replacing the Battery
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
A coin-cell battery maintains computer configuration, date, and time information. The battery can
last several years.
If you have to repeatedly reset time and date information after turning on the computer, replace
the battery.
CAUTION:
A new battery can explode if it is incorrectly installed. Replace the 3-V CR2032 battery only
with the same or equivalent type recommended by the manufacturer. Discard used batteries according
to the manufacturer’s instructions.
1
Record all the screens in the system setup program (see page 74) so that you can restore the
correct settings when your perform step 11.
2
Shut down the computer through the
Start
menu (see page 18).