Diagnostic Lights - Dell Dimension 9200 Service Manual

Documentation
Ensure the display is connected and powered on.
If the display is connected and powered on, see
If the power light is blinking green, the computer is in standby mode. Press a key on the keyboard, move the mouse, or
●
press the power button to resume normal operation.
If the power light is off, the computer is either turned off or is not receiving power.
●
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 system board (see
Board Components).
If the power light is blinking amber, the computer is receiving electrical power, but an internal power problem might
●
exist.
Ensure that the voltage selection switch is set to match the AC power at your location (if applicable).
If the power light is steady amber, a device might be malfunctioning or incorrectly installed.
●
Remove and then reinstall the memory modules (see
Remove and then reinstall any cards (see Cards).
Remove and then reinstall the graphics card, if applicable (see Cards).
Ensure that all power cables are securely connected to the system board. (see

Diagnostic Lights

CAUTION: Before you perform 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 1, 2, 3, and 4 on the front panel (see
Computer). When the computer starts normally, the lights flash before turning off. If the computer malfunctions,
of the
the sequence of the lights help to identify the problem.
.
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Diagnostic Lights.
Installing Memory).
System Board
System
Components).
Front View