Quick Reference Guide
Table Of Contents
- Contents
- About This Reference
- Checking Out Your Computer
- Setting Up and Getting Started
- Working safely and comfortably
- Preparing power connections
- Connecting to a broadband modem or network
- Connecting a dial-up modem
- Starting your computer
- Turning off your computer
- Restarting (rebooting) your computer
- Using the keyboard
- Using the mouse
- Using optical drives
- Using the memory card reader
- Using the diskette drive
- Adjusting the volume
- Installing a printer, scanner, or other device
- Upgrading Your Computer
- Preventing static electricity discharge
- Opening and closing the case
- Replacing the optical disc drive
- Replacing the diskette drive
- Replacing the memory card reader
- Replacing the hard drive
- Installing memory
- Adding or replacing an expansion card
- Replacing the heat sink and processor
- Replacing the system battery
- Replacing the power supply
- Replacing the system board
- Maintaining Your Computer
- Troubleshooting
- Safety guidelines
- First steps
- Troubleshooting
- Add-in cards
- Audio
- CD or DVD drives
- Diskette drive
- The diskette drive is not recognized
- You cannot save a file to diskette or you see the message “disk is full or write-protected”
- You see an “Access Denied” or “Write protect” error message
- You see a “Disk is full” error message
- You see a “Non-system disk” or “Disk error” error message
- The diskette drive LED is lit continuously
- Display
- DVD drives
- Ethernet
- Expansion cards
- File management
- Floppy drive
- Hard drive
- Internet
- Keyboard
- Media Center
- Memory
- Memory card reader
- Modem (cable or DSL)
- Modem (dial-up)
- Your modem does not dial or does not connect
- You cannot connect to the Internet
- Your 56K modem does not connect at 56K
- Your fax communications program only sends and receives faxes at 14,400 bps when you have a 56K modem
- The modem is not recognized by your computer
- The modem is noisy when it dials and connects
- Monitor
- Mouse
- Networks
- Passwords
- Power
- Printer
- Sound
- Recovering your Windows Vista system
- Recovering pre-installed software and drivers
- Using Microsoft System Restore
- Recovering your system to its factory condition
- Recovering your system using the Windows DVD
- Recovering your Windows XP system
- Telephone support
- Legal Notices
- Index

CHAPTER 3: Setting Up and Getting Started
16
Checking the voltage selection
The power supply, a component built into your computer,
provides power to the system board, add-in cards, and
peripheral devices. The power supply’s voltage selection for
your location is typically set at the factory, but you can change
it to match the electrical service available in your usage area
(such as while in another country). Use the power selection
switch on the back of your computer to set the voltage to
115V or 230V.
To set the voltage selection switch:
1 Disconnect your computer’s power cable.
2 Use a tool such as an opened paper clip to slide the
voltage selection switch to the correct voltage position.
The switch is located on the back of your computer,
near the power cable connector.
Caution
If you set the voltage selection switch incorrectly, your system will be
damaged. Make sure this switch is set correctly for your location before turning
on your computer. In the United States, the utility power is supplied at a nominal
115 volts at 60 Hz. The power supply should always be set to this when your
computer is operating in the United States. In other areas of the world, such
as Europe, the utility power is supplied at 230 volts at 50 Hz. If your computer
is operating in an environment such as this, the voltage switch should be moved
to 230.
Caution
If you have any doubt about the correct setting for the voltage switch,
leave it in its current position.
Voltage switch
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