Dell UY691 manual Adding and Replacing Parts, Before You Begin, Recommended Tools

Adding and Replacing Parts

Before You Begin

This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:

•You have performed the steps in "Turning Off Your Computer" on page 107 and "Before Working Inside Your Computer" on page 107.

•You have read the safety information in your Dell™ Product Information Guide.

Recommended Tools

The procedures in this document may require the following tools:

•Small flat-blade screwdriver

•Phillips screwdriver

•Small plastic scribe

•Flash BIOS update program (see the Dell Support website at support.dell.com)

Turning Off Your Computer

NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your computer.

1Shut down the operating system:

a Save and close any open files, exit any open programs, and click Start→Shut Down. b Select Shut down→OK.

The computer turns off after the operating system shutdown process finishes.

2Ensure that the computer and any attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, turn them off now by pressing and holding the power button for 4 seconds.

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.

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