Dell OptiPlex 740 - Manual (Page 59)

Quick Reference Guide
59
Beep Codes
Your computer might emit a series of beeps during start-up if the monitor
cannot display errors or problems. This series of beeps, called a beep code,
identifies a problem.
Memory modules are detected,
but a memory configuration or
compatibility error exists. • Ensure that no special
memory module/memory
connector placement
requirements exist.
• Verify that the memory
modules that you are
installing are compatible with
your computer.
• If the problem persists,
contact Dell for technical
assistance. For information
on contacting Dell, see your
online
User’s Guide.
A failure has occurred.
This pattern also displays when
you enter the system setup
program and may not indicate
a problem (see "System Setup
Program" in your computer’s
online User’s Guide).
• Ensure that the cables are
properly connected to the
system board from the hard
drive, and optical drive.
• Check the computer message
that appears on your monitor
screen.
• If the problem persists,
contact Dell for technical
assistance. For information
on contacting Dell, see your
online
User’s Guide.
After POST is complete, all
four diagnostic lights turn
green briefly before turning off
to indicate normal operating
condition. None.
Light Pattern Problem Description Suggested Resolution