Dell P56F, Service Manual

Page: 8 / 87

Before working inside your
computer
NOTE: The images in this document may differ from your computer depending
on the configuration you ordered.
Topics:
• Before you begin
• Safety instructions
• Recommended tools
• After working inside your computer
Before you begin
1 Save and close all open files and exit all open applications.
2 Shut down your computer.
• Windows 10: Click or tap Start
>
Power
>
Shut down.
• Windows 8.1: On the Start screen, click or tap the power icon
>
Shut
down.
• Windows 7: Click or tap Start
>
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 cables such as telephone cables, network cables and so on, from
your computer.
5 Disconnect all attached devices and peripherals, such as keyboard, mouse,
monitor, and so on, from your computer.
6 Remove any media card and optical disc from your computer, if applicable.
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Before working inside your computer 8