CAUTION: To disconnect a network cable, first unplug the cable from your computer and
then unplug the cable from the network device.
4.
Disconnect all network cables from the computer.
5.
Disconnect your computer and all attached devices from their electrical outlets.
6.
Close the display and turn the computer upside-down on a flat work surface.
NOTE: To avoid damaging the system board, you must remove the main battery before you
service the computer.
7.
Remove the main battery.
8.
Turn the computer top-side up.
9.
Open the display.
10.
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 display.
CAUTION: Before touching anything inside your computer, ground yourself by touching an
unpainted metal surface, such as the metal at the back of the computer. While you work,
periodically touch an unpainted metal surface to dissipate static electricity, which could harm
internal components.
11.
Remove any installed ExpressCards or Smart Cards from the appropriate slots.
Turning Off Your Computer
CAUTION: To avoid losing data, save and close all open files and exit all open programs before you
turn off your computer.
1.
Shut down the operating system:
– In Windows 8:
* Using a touch-enabled device:
a. Swipe in from the right edge of the screen, opening the Charms menu and select
Settings
.
b. Select the
and then select
Shut down
* Using a mouse:
a. Point to upper-right corner of the screen and click
Settings
.
b. Click the
and select
Shut down
.
– In Windows 7:
1. Click
Start
.
2. Click
Shut Down.
or
1. Click
Start
.
6
Summary of Contents for Precision M3800
Page 1: ...Dell Precision M3800 Owner s Manual Regulatory Model P31F Regulatory Type P31F001 ...
Page 8: ...8 ...
Page 42: ...42 ...
Page 50: ...50 ...
