User Manual

Before working inside your

computer

NOTE: The images in this document may dier from your computer

depending on the conguration you ordered.

Before you begin

1 Save and close all open les and exit all open applications.

2 Shut down your computer. Click Start → Power → Shut down.

NOTE: If you are using a dierent 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 disc from your computer, if applicable.

6 After the computer is unplugged, press and hold the power button for 5 seconds

to ground the system board.

CAUTION: Place the computer on a at, soft, and clean surface to

avoid scratches on the display.

7 Place the computer face down.

Safety instructions

Use the following safety guidelines to protect your computer from potential damage

and ensure your personal safety.

WARNING: Before working inside your computer, read the safety

information that shipped with your computer. For more safety best

practices, see the Regulatory Compliance home page at www.dell.com/

regulatory_compliance.