Table of Contents
Advertisement
Back to Contents Page
Troubleshooting Tools
Dell™ Dimension™ 4700C Service Manual
Power Lights
Network Lights
Diagnostic Lights
Beep Codes
System Messages
Power Lights
The power button light located on the front of your computer illuminates and blinks or remains solid to indicate different states:
If the power light is green and the computer is not responding, see
l
If the power light is blinking green, the computer is in standby mode. Press a key on the keyboard, press the power button, or move the mouse to
l
resume normal operation.
If the power light is off, the computer is either turned off or is not receiving power.
l
Reseat the power cable into both the power connector on the back of the computer and the electrical outlet.
¡
If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and that the power strip is turned
¡
on. Also bypass power protection devices, power strips, and power extension cables to verify that the computer turns on properly.
Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
¡
Ensure that the main power cable and front panel cable are securely connected to the
¡
If the power light is blinking amber, the computer is receiving electrical power, but an internal power problem might exist.
l
Ensure that the voltage selection switch is set to match the AC power at your location (if applicable). See your Owners Manual for more
¡
information.
Ensure that the processor power cable is securely connected to the
¡
If the power light is steady amber, a device might be malfunctioning or incorrectly installed.
l
Remove and then
reinstall the memory
¡
Remove and then
reinstall any
¡
Remove and then reinstall the
¡
Eliminate sources of interference. Some possible causes of interference are:
l
Power, keyboard, and mouse extension cables
¡
Too many devices on a power strip
¡
Multiple power strips connected to the same electrical outlet
¡
Network Lights
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
Check the network cable connector to ensure that the network cable is firmly inserted into both the network connector on the back of the computer and
l
the network jack.
Check the network lights on the back of the computer. If the link integrity light is off, that indicates no network communication exists. Replace the
l
network cable. For a description of network lights, see your Owner's Manual.
Restart the computer and log on to the network again.
l
Check your network settings. Contact your network administrator or the person who set up your network to verify that your network settings are
l
correct and that the network is functioning.
Run the Hardware Troubleshooter. See your Owner's Manual.
l
Diagnostic Lights
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" on the back panel (see your Owner's Manual). The lights can
be yellow or green. When the computer starts normally, the lights flash. After the computer starts, all four lights display solid green. If the computer
"Diagnostic
modules.
cards.
graphics
card, if applicable.
Lights."
system
board.
system
board. See your Owners Manual for more information.
Advertisement
Table of Contents
