Turning Off Your - Windows; After Working Inside Your Computer - Dell Precision 3520 Owner's Manual
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Also See for Precision 3520:
- Service manual (124 pages) ,
- Owner's manual (84 pages) ,
- Setup and specifications (24 pages)
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CAUTION:
If your computer has an RJ45 port, disconnect the network cable by first unplugging the cable
from your computer.
5. Disconnect your computer and all attached devices from their electrical outlets.
6. Open the display.
7. Press and hold the power button for few seconds, to ground the system board.
CAUTION:
To guard against electrical shock unplug your computer from the electrical outlet before
performing Step # 8.
CAUTION:
To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by
periodically touching an unpainted metal surface at the same time as touching a connector on the back
of the computer.
8. Remove any installed ExpressCards or Smart Cards from the appropriate slots.
Turning off your — Windows
CAUTION:
To avoid losing data, save and close all open files and exit all open programs before you turn off your
computer .
1. Click or tap
.
2. Click or tap
and then click or tap Shut down.
NOTE:
Ensure that the computer and all attached devices are turned off. If your computer and attached devices did not
automatically turn off when you shut down your operating system, press and hold the power button for about 6 seconds
to turn them off.
After working inside your computer
After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning
on your computer.
CAUTION:
To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do
not use batteries designed for other Dell computers.
1. Connect any external devices, such as a port replicator or media base, and replace any cards, such as an ExpressCard.
2. Connect any telephone or network cables to your computer.
CAUTION:
To connect a network cable, first plug the cable into the network device and then plug it into the
computer.
3. Connect your computer and all attached devices to their electrical outlets.
4. Turn on your computer.
Working on your computer
9
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