Dell Inspiron 16 5640 Owners Manual - Page 28

Working inside your computer, Safety instructions

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4 Working inside your computer Safety instructions Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure in this document assumes that you have read the safety information that shipped with your computer. WARNING: Before working inside your computer, read the safety information that is shipped with your computer. For more safety best practices, see Dell Regulatory Compliance Home Page. WARNING: Disconnect your computer from all power sources before opening the computer cover or panels. After you finish working inside the computer, replace all covers, panels, and screws before connecting your computer to an electrical outlet. CAUTION: To avoid damaging the computer, ensure that the work surface is flat, dry, and clean. CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching the pins and the contacts. CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that is shipped with the product or at Dell Regulatory Compliance Home Page. 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. CAUTION: When you disconnect a cable, pull it by its connector or its pull tab, not the cable itself. Some cables have connectors with locking tabs or thumbscrews that you must disengage before disconnecting the cable. When disconnecting cables, keep them evenly aligned to avoid bending the connector pins. When connecting cables, ensure that the ports and the connectors are correctly oriented and aligned. CAUTION: Press and eject any installed card from the media-card reader. CAUTION: Exercise caution when handling rechargeable Li-ion batteries in laptops. Swollen batteries should not be used and should be replaced and disposed properly. NOTE: The color of your computer and certain components may differ from what is shown in this document. Before working inside your computer Steps 1. Save and close all open files and exit all open applications. 2. Shut down your computer. For Windows operating system, click Start > Power > Shut down. NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions. 3. Disconnect your computer and all attached devices from their electrical outlets. 4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer. 5. Remove any media card and optical disk from your computer, if applicable. 28 Working inside your computer

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Working inside your computer
Safety instructions
Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless
otherwise noted, each procedure in this document assumes that you have read the safety information that shipped with your
computer.
WARNING:
Before working inside your computer, read the safety information that is shipped with your
computer. For more safety best practices, see
Dell Regulatory Compliance Home Page
.
WARNING:
Disconnect your computer from all power sources before opening the computer cover or panels.
After you finish working inside the computer, replace all covers, panels, and screws before connecting your
computer to an electrical outlet.
CAUTION:
To avoid damaging the computer, ensure that the work surface is flat, dry, and clean.
CAUTION:
To avoid damaging the components and cards, handle them by their edges, and avoid touching the
pins and the contacts.
CAUTION:
You should only perform troubleshooting and repairs as authorized or directed by the Dell technical
assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the
safety instructions that is shipped with the product or at
Dell Regulatory Compliance Home Page
.
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.
CAUTION:
When you disconnect a cable, pull it by its connector or its pull tab, not the cable itself. Some cables
have connectors with locking tabs or thumbscrews that you must disengage before disconnecting the cable.
When disconnecting cables, keep them evenly aligned to avoid bending the connector pins. When connecting
cables, ensure that the ports and the connectors are correctly oriented and aligned.
CAUTION:
Press and eject any installed card from the media-card reader.
CAUTION:
Exercise caution when handling rechargeable Li-ion batteries in laptops. Swollen batteries should not
be used and should be replaced and disposed properly.
NOTE:
The color of your computer and certain components may differ from what is shown in this document.
Before working inside your computer
Steps
1.
Save and close all open files and exit all open applications.
2.
Shut down your computer. For Windows operating system, click
Start
>
Power
>
Shut down
.
NOTE:
If you are using a different operating system, see the documentation of your operating system for shut-down
instructions.
3.
Disconnect your computer and all attached devices from their electrical outlets.
4.
Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
5.
Remove any media card and optical disk from your computer, if applicable.
4
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Working inside your computer