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Front View of Your Computer

Dell Precision™ Workstation 340 User's Guide

  Front Panel Door

  Controls and Lights

  Connecting Devices

Small Desktop Computer

1	front panel door	4	floppy-drive access light
2	power button	5	hard-drive access light
3	power light

Mini-Tower Computer

1	removable drive panel	5	front panel door
2	removable drive panel	6	power light
3	hard-drive access light	7	floppy drive access light
4	power button

Front Panel Door

Open the front panel door to access two USB connectors and the headphone connector. This door is removable; if you remove it or accidentally knock it off its hinges, it snaps back in place.

Door Open—Small Desktop Computer

1	headphone connector
2	USB connectors (2)

NOTE: Do not plug USB keyboards or mice into the connectors on the front of the computer.

Door Open—Mini-Tower Computer

1	USB connectors (2)
2	headphone connector

NOTE: Do not plug USB keyboards or mice into the connectors on the front of the computer.

Controls and Lights

NOTE: See "Diagnostic Lights" for descriptions of light codes and operations.

• Power button — controls the computer's AC input power. See the following table for power button functions on computers running Microsoft® Windows® or Windows NT®.
  
  

Power Button Functions

Computer Status	Power Button Function
Off	Press and release to turn the computer on.
On	Press and hold for more than 6 seconds to immediately turn the computer off. NOTE: Using this method to turn off the computer may result in loss of data. Use this method only if the computer will not shut down normally.
On (Windows NT)	Press and release to attempt an orderly shutdown. NOTE: This works only if the Dell System Utilities are loaded on the computer. Without the utilities, the computer immediately turns off rather than performing an orderly shut down.
Sleep state	Press and release to bring the computer out of the sleep state. For more information, see "Power Management."

• Power light — illuminates in two colors and blinks or remains solid to indicate different states.
  
  
• Floppy-drive access light — illuminates when the drive is reading data from, or writing data to, a floppy disk. Wait until this light turns off before you remove a floppy disk from the drive.
  
  
• Hard-drive access light — illuminates when a hard drive is reading data from, or writing data to, the drive.
  
  
• Diagnostic lights — a series of lights that can help you diagnose a problem with your computer.
  
  

Connecting Devices

When you connect external devices to your computer's front panel, follow these guidelines:

• Check the documentation that accompanied the device for specific installation and configuration instructions.
  
  

For example, you must connect most devices to a particular I/O port or connector to operate properly. Also, external devices like a printer usually require you to load device drivers before they will work.

• When connecting a USB mouse or keyboard, ensure that you connect to one of the Port 1 USB connectors on the back of the computer.
  
  
• Always attach external devices while your computer is turned off. Then turn on the computer before turning on any external devices, unless the documentation for the device specifies otherwise.
  
  

NOTICE: Before disconnecting a device from the computer, wait 10 to 20 seconds after turning off the computer to avoid possible damage to the system board.

Speaker/Headphone Jack

Used to connect computer speakers, headphones, or other audio output devices. This jack is amplified to support headphones.

USB Connectors

Used to attach USB-compliant devices such as printers and speakers to your computer.

NOTICE: USB devices do not operate with Microsoft Windows NT.

NOTE: When connecting a USB mouse or keyboard, ensure that you connect to one of the Port 1 USB connectors on the back of the computer.

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