Gateway GT5448E Replacing the power supply

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3Remove the four screws on the outside of the case that secure the fan to the back of the case, then remove the fan.

Screws						Screws
Screws						Screws

4Place the new fan on the back of your computer, then replace the screws that secure it to the back cover.

5Reconnect the fan cable to the system board.

6Replace the side panel by following the instructions in “Replacing the side panel” on page 33.

7Reconnect all external cables and the power cord.

8Turn on your computer.

Replacing the power supply

Tools

You need a Phillips screwdriver to replace the power supply.

To replace the power supply:

1Remove the side panel by following the instructions in “Removing the side panel” on page 31.

2Disconnect the power supply cables from all components (such as hard drives, CD or DVD drives, and the system board), noting their locations and orientation. (You will reconnect the cables after you install the new power supply.)

Contents

Page Page Contents Chapter 1: About This Reference Chapter 2: Checking Out Your Computer Chapter 3: Setting Up and Getting Started Chapter 4: Upgrading Your Computer Chapter 5: Maintaining Your Computer Chapter 6: Troubleshooting Page CHAPTER1 About This Reference •About this guide •Accessing the online User Guide •Gateway contact information About this guide Accessing the online User Guide Gateway contact information Microsoft Certificate of Authenticity Page CHAPTER2 •Front •Back Front Page Back Page Page CHAPTER3 Setting Up and Getting Started •Working safely and comfortably •Preparing power connections •Connecting to a broadband modem or network Working safely and comfortably Reducing eye strain Setting up your computer desk and chair Sitting at your computer Avoiding discomfort and injury from repetitive strain Preparing power connections Protecting from power source problems Checking the voltage selection Connecting a dial-upmodem Starting your computer Waking up your computer Turning off your computer Restarting (rebooting) your computer Using the keyboard Premium multimedia keyboard features Elite multimedia keyboard features Page Using the mouse Page Adjusting the volume Page Configuring the audio jacks Installing a printer, scanner, or other device Page Page CHAPTER4 Upgrading Your Computer •Preventing static electricity discharge •Opening and closing the case •Installing memory Preventing static electricity discharge Opening the case Removing the side panel Removing the front bezel Closing the case Replacing the front bezel Replacing the side panel Installing memory Replacing the system battery Page Adding or replacing a CD or DVD drive Page Replacing the memory card reader Adding or replacing a hard drive Page Page Page Page Replacing the front fan Replacing the rear fan Replacing the power supply Replacing the heat sink and processor Page Page Replacing the I/O board Adding or replacing an expansion card Page Replacing the system board Page Page Page Page CHAPTER5 Maintaining Your Computer •Setting up a maintenance schedule •Caring for your computer Setting up a maintenance schedule Caring for your computer Cleaning your computer Cleaning the exterior Cleaning the keyboard Cleaning the monitor Cleaning the mouse Cleaning optical discs Updating Windows Using BigFix Managing hard drive space Checking hard drive space Deleting unnecessary files Checking the hard drive for errors Page Defragmenting the hard drive Backing up files Scheduling maintenance tasks Moving from your old computer Moving with Windows Easy Transfer Moving files and settings manually Page Page Troubleshooting •Safety guidelines •First steps •Troubleshooting •Recovering your system Safety guidelines First steps Troubleshooting Add-incards Audio CD or DVD drives Page Diskette drive DVD drives Ethernet File management Hard drive Internet Keyboard Media Center Page Page Memory Memory card reader Modem (cable or DSL) Modem (dial-up) Page Page Monitor Page Mouse Networks Passwords Power Printer Sound Recovering your system Recovering pre-installedsoftware and drivers Page Page Recovering pre-installedsoftware and drivers using Gateway Recovery Center Recovering pre-installedsoftware and drivers using recovery discs Page Using Microsoft System Restore Manually creating a restore point Page Recovering your system to its factory condition Recovering your system using the Windows DVD Telephone support Before calling Gateway Customer Care Telephone numbers Self-help Tutoring Training Page Legal Notices •Important safety information •Regulatory compliance statements •Environmental information •Notices Important safety information Setting up your system Careduring use Replacement parts and accessories United States of America Federal Communications Commission (FCC) Unintentional emitter perFCC Part FCC declaration of conformity California Proposition 65 Warning Canada Industry Canada (IC) Unintentional emitter per ICES-003 Laser safety statement External television antenna grounding Lightning protection Powerlines Environmental information Notices All Rights Reserved Trademarkacknowledgments Macrovision statement Page Index