Dell 3451 Service Manual download pdf (Page 10)

Before working inside your

computer

CAUTION: To avoid damaging the components and cards, handle

them by their edges and avoid touching pins and contacts.

NOTE: The images in this document may differ from your computer

depending on the configuration you ordered.

Before you begin

1 Save and close all open files and exit all open applications.

2 Shut down your computer.

– 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.

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

seconds to ground the system board.

Safety instructions

Use the following safety guidelines to protect your computer from potential

damage and ensure your personal safety.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 95 96

No comments

Dell 3451 Service Manual Page 10