Dell Dimension 2400 Series User Manual

Advanced Troubleshooting 35
Advanced Troubleshooting
Diagnostic Lights
To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" on
the back panel (see page 47). 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 malfunctions, the color and sequence of the lights identify the problem.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide.
Light Pattern Problem Description Suggested Resolution
The computer is in a normal off
condition or a possible pre-BIOS
failure has occurred.
Verify that the computer is plugged
into a working electrical outlet and
that you have pressed the power
button.
ABCD
= yellow
= green
= off

Dell Dimension 2400 Series Specifications

General

Chipset	Intel 845GV
Memory	Up to 2GB DDR SDRAM
Hard Drive	Up to 80GB
Optical Drive	CD-ROM, CD-RW, or DVD-ROM
Graphics	Integrated Intel Extreme Graphics
Audio	Integrated Audio
Network	10/100 Ethernet
Expansion Slots	3 PCI slots
Operating System	Windows XP Home or Professional
Processor	Intel Celeron or Intel Pentium 4
Processor Speed	Up to 2.8 GHz
Ports	Parallel, Serial, VGA, USB 2.0
Weight	Approx. 22 lbs