Dell Precision 490 Desktop: 13 diagnostic lights (4) Use these lights to help you troubleshoot a computer problem based on the
13 diagnostic lights (4) Use these lights to help you troubleshoot a computer problem based on the: Dell Precision 490 Desktop
Table of contents
- Notes, Notices, and Cautions Abbreviations and Acronyms
- Contents
- Finding Information What Are You Looking For? Find It Here
- What Are You Looking For? Find It Here
- What Are You Looking For? Find It Here
- What Are You Looking For? Find It Here
- Setting Up Your Computer (Tower Orientation) Connect the keyboard and the mouse. Connect the modem or the network cable.
- Connect the monitor.
- For single- and dual-monitor capable cards with a single connector
- For dual-monitor capable cards with one DVI connector and one VGA connector For dual-monitor capable cards with two DVI connectors
- Connect the speakers. Connect the power cables and turn on the computer and monitor.
- Install additional software or devices. Setting Up Your Computer (Desktop Orientation) Connect the keyboard and the mouse.
- Connect the modem or the network cable. Connect the monitor.
- For single- and dual-monitor capable cards with a single connector
- For dual-monitor capable cards with one DVI connector and one VGA connector For dual-monitor capable cards with two DVI connectors
- Connect the speakers. Connect the power cables and turn on the computer and monitor. Install additional software or devices.
- About Your Computer Front View (Tower Orientation) 5 IEEE 1394 connector (optional)
- 13 diagnostic lights (4) Use these lights to help you troubleshoot a computer problem based on the
- Back View (Tower Orientation)
- Back Panel Connectors 4 link integrity light
- 11 serial connector Connect a serial device, such as a handheld device, to the serial port. If necessary,
- Front View (Desktop Orientation) 8 power button Press to turn on the computer.
- 13 diagnostic lights (4) Use these lights to help you troubleshoot a computer problem based on the Back View (Desktop Orientation)
- Inside View
- Inside View – Hard Drive Bay Rotated Out
- System Board Components
- 14 SATA connectors (SATA_4, SATA_3) Cable Colors Locating Your User’s Guide
- Removing the Computer Cover 1 2 3
- 4 5 6 7
- Caring for Your Computer Solving Problems Troubleshooting Tips Resolving Software and Hardware Incompatibilities
- Using Microsoft Windows XP System Restore Creating a Restore Point Restoring the Computer to an Earlier Operating State
- Undoing the Last System Restore Enabling System Restore Using the Last Known Good Configuration Other Options to Help Resolve Additional Device or Software Conflicts
- Dell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard Drive
- Starting the Dell Diagnostics From the Drivers and Utilities CD Before You Start Testing Beep Codes
- Code Cause
- Error Messages Diagnostic Lights Diagnostic Light Codes Before POST Diagnostic Lights Power Problem Description Suggested Resolution Light
- Diagnostic Lights Power Problem Description Suggested Resolution Light
- Diagnostic Lights Power Problem Description Suggested Resolution Light
- Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Frequently Asked Questions How Do I... Solution Where to Find Additional Information
- How Do I... Solution Where to Find Additional Information
- Index
- 46 Index
6 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as
flash memory keys or cameras, or for bootable USB devices (see
"System Setup"
in your User’s Guide for more information on booting to a USB device).
It is recommended that you use the back USB connectors for devices that
typically remain connected, such as printers and keyboards.
7 Dell™ rotatable badge To rotate the Dell badge for tower-to-desktop conversion; remove the
front
panel
, turn it over, and rotate the plastic handle behind the badge.
8 power button Press to turn on the computer.
NOTICE: To avoid losing data, do not use the power button to turn off the computer.
Instead, perform an operating system shutdown.
NOTE: The power button can also be used to wake the system or to place it into
a power-saving state. See "Power Management" in your User’s Guide for
more information.
9 power light The power light illuminates and blinks or remains solid to indicate different
states:
• No light — The computer is turned off.
• Steady green — The computer is in a normal operating state.
• Blinking green — The computer is in a power-saving state.
• Blinking or solid amber — See "Power Problems" in your
User’s Guide
.
To exit from a power-saving state, press the power button or use the keyboard or
the mouse if it is configured as a wake device in the Windows Device Manager.
For more information about sleep states and exiting from a power-saving state,
see your User’s Guide.
See "Diagnostic Lights" on page 38 for a description of light codes that can help
you troubleshoot problems with your computer.
10 headphone connector Use the headphone connector to attach headphones.
11 microphone connector Use the microphone connector to attach a personal computer microphone for
voice or musical input into a sound or telephony program.
12 network link light The network link light is on when a good connection exists between a 10-Mbps,
100-Mbps, or 1000-Mbps (or 1-Gbps) network and the computer.
13 diagnostic lights (4) Use these lights to help you troubleshoot a computer problem based on the
diagnostic code. For more information, see "Diagnostic Lights" on page 38.
20 Quick Reference Guide
