Dell OptiPlex 360 Service Manual page 131

Light Pattern
Steady
Green
Steady
Green
Steady
Green
Steady
Green
Problem Description
The computer is in a
normal on condition.
The diagnostic lights
are not lit after the
computer successfully
boots to the operating
system.
A possible processor
failure has occurred.
Memory modules are
detected, but a
memory failure has
occurred.
A possible graphics
card failure has
occurred.
Suggested Resolution
• Ensure the display is connected and
powered on.
• If the problem persists, contact Dell
(see "Contacting Dell" on page 159).
• Reseat the processor (see processor
information for your computer).
• If the problem persists, contact Dell
(see "Contacting Dell" on page 159).
• If two or more memory modules are
installed, remove the modules and
reinstall one module (see "Memory
Modules" on page 89).
Restart the computer. If the computer
starts normally, continue to install
additional memory modules (one at a
time) until you have identified a
faulty module or reinstalled all
modules without error.
• If available, install working memory of
the same type into your computer (see
"Memory Modules" on page 89).
• If the problem persists, contact Dell
(see "Contacting Dell" on page 159).
• Reseat any installed graphics cards
(see the "Cards" section for your
computer).
• If available, install a working graphics
card into your computer.
• If the problem persists, contact Dell
(see "Contacting Dell" on page 159).
Troubleshooting
131