Dell OptiPlex 360 User Manual

126 Troubleshooting
Diagnostic Lights
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage on www.dell.com at
www.dell.com/regulatory_compliance.
To help troubleshoot a problem, your computer has four lights labeled 1, 2, 3,
and 4 on the front panel.
NOTE: If you are using an ultra small form factor computer, the diagnostic lights
are present on the back panel. See the Setup and Quick Reference Guide that ships
with your computer for more information.
When the computer starts normally, the lights flash, and then turn off. If the
computer malfunctions, use the sequence of the lights to help identify the
problem.
NOTE: After the computer completes POST, all four lights turn off before booting to
the operating system.
4-3-3 Timer-chip counter 2 failure
4-3-4 Time-of-day clock stopped
4-4-1 Serial or parallel port test failure
4-4-2 Failure to decompress code to shadowed memory
4-4-3 Math-coprocessor test failure
4-4-4 Cache test failure
Code Cause

Dell OptiPlex 360 Specifications

General

Processor	Intel Core 2 Duo, Intel Pentium Dual-Core, Intel Celeron
Chipset	Intel G31 Express
Networking	Integrated 10/100/1000 Ethernet
Memory	Up to 4GB DDR2 SDRAM
Storage	SATA hard drive, up to 500GB
Graphics	Integrated Intel GMA 3100
Optical Drive	DVD-ROM or DVD+/-RW
Operating System	Windows Vista, Windows XP
Form Factor	Mini Tower, Desktop
Audio	Integrated
Expansion Slots	PCI, PCIe x16
Ports	1 Serial, 1 Parallel, 1 VGA, 1 RJ-45, Audio in/out