Dell 660 Coin-Cell Battery

Coin-Cell Battery 77

Coin-Cell Battery

WARNING: Before working inside your computer, read the safety information

that shipped with your computer and follow the steps in "Before You Begin" on

page9. For additional safety best practices information, see the Regulatory

Compliance Homepage at dell.com/regulatory_compliance.

WARNING: A battery may explode if installed incorrectly. Replace the battery

only with the same or equivalent type. Discard used batteries according to the

manufacturer’s instructions.

CAUTION: Removing the coin-cell battery resets the BIOS settings to default. It is

recommended that you note the BIOS settings before removing the

coin-cell battery. See "System Setup" on page91 for instructions on entering the

system setup program.

Removing the Coin-Cell Battery

Prerequisites

Remove the computer cover. See "Removing the Computer Cover" on

page18.

book.book Page 77 Tuesday, April 17, 2012 11:37 AM

Contents

Main Notes, Cautions, and Warnings ____________________ Contents 1 Before You Begin . . . . . . . . . . . . . . . . . . . 9 4 Computer Cover . . . . . . . . . . . . . . . . . . . 17 5 Memory Module(s) . . . . . . . . . . . . . . . . . 21 4 6 Front Bezel . . . . . . . . . . . . . . . . . . . . . . . 25 7 Card Retention Bracket . . . . . . . . . . . . . . 29 8 PCI Express Cards . . . . . . . . . . . . . . . . . . 33 9 Mini-Card. . . . . . . . . . . . . . . . . . . . . . . . . 39 10 Hard Drive(s) . . . . . . . . . . . . . . . . . . . . . . 43 11 Optical Drive(s) . . . . . . . . . . . . . . . . . . . . 49 12 Front I/O Panel . . . . . . . . . . . . . . . . . . . . 57 13 Power Button Module . . . . . . . . . . . . . . . 61 14 Chassis Fan . . . . . . . . . . . . . . . . . . . . . . . 65 15 Processor Fan and Heat-Sink Assembly . . . . . . . . . . . . . . . . 69 16 Processor . . . . . . . . . . . . . . . . . . . . . . . . 73 17 Coin-Cell Battery . . . . . . . . . . . . . . . . . . . 77 18 Power Supply . . . . . . . . . . . . . . . . . . . . . 81 19 System Board . . . . . . . . . . . . . . . . . . . . . 85 20 System Setup. . . . . . . . . . . . . . . . . . . . . . 91 Page Page Before You Begin Turn Off Your Computer and Connected Devices Safety Instructions Recommended Tools After Working Inside Your Computer Page Technical Overview Inside View of Your Computer 14 System Board Components Page Page Computer Cover Removing the Computer Cover Replacing the Computer Cover Page Memory Module(s) Removing the Memory Module(s) Replacing the Memory Module(s) Page Page Front Bezel Removing the Front Bezel Page Replacing the Front Bezel Page Card Retention Bracket Removing the Card Retention Bracket Page Replacing the Card Retention Bracket Page PCI Express Cards Removing PCI Express Cards Prerequisites. Page Replacing PCI Express Cards Page Configuring Your Computer After Removing or Installing the PCI Express Card Page Mini-Card Removing the Mini-Card Replacing the Mini-Card Page Hard Drive(s) Removing the Hard Drive(s) Page Page Page Page Replacing the Hard Drive(s) Optical Drive(s) Removing the Optical Drive(s) Page Page Page Replacing the Optical Drives(s) Page Page Page Front I/O Panel Removing the Front I/O Panel Page Replacing the Front I/O Panel Page Power Button Module Removing the Power Button Module Page Replacing the Power Button Module Page Chassis Fan Removing the Chassis Fan Page Replacing the Chassis Fan Page Processor Fan and Heat-Sink Assembly Removing the Processor Fan and Heat-Sink Assembly Page Replacing the Processor Fan and Heat-Sink Assembly Page Processor Removing the Processor Page Replacing the Processor Page Coin-Cell Battery Removing the Coin-Cell Battery Page Replacing the Coin-Cell Battery Page Power Supply Removing the Power Supply Page Replacing the Power Supply Page System Board Removing the System Board Page Replacing the System Board Entering the Service Tag in the BIOS Page Page System Setup Overview Entering System Setup Page System Setup Options Page Page 96 CAUTION: 2nd Boot 3rd Boot 4th Boot 5th Boot 98 Page Boot Sequence Page Clearing Forgotten Passwords Page Clearing CMOS Passwords Page Page Flashing the BIOS