Diagnostic Lights - Dell OptiPlex 740 Guide De Référence Rapide

Power Light
Solid yellow
Blinking yellow
Solid green and a
beep code during
POST
Solid green
power light, no
beep code and
no video during
POST
Solid green
power light and
no beep code,
but the
computer locks
up during POST

Diagnostic Lights

CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions located in the Product Information Guide.
Problem Description
The Dell Diagnostics is
running a test, or a device
on the system board may be
faulty or incorrectly
installed.
A power supply or system
board failure has occurred.
A problem was detected
while the BIOS was
executing.
The monitor or the graphics
card may be faulty or
incorrectly installed.
An integrated system board
device may be faulty.
Suggested Resolution
If the Dell Diagnostics is running,
allow the testing to complete.
See "Diagnostic Lights" on page 55
to see if the specific problem is
identified.
If the computer does not boot,
contact Dell for technical assistance.
For information on contacting Dell,
see your online User's Guide.
See "Diagnostic Lights" on page 55
to see if the specific problem is
identified.
See "Power Problems" in your online
User's Guide.
For instructions on diagnosing the
beep code, see "Beep Codes" on
page 59. Also, see "Diagnostic
Lights" on page 55 to see if the
specific problem is identified.
See "Diagnostic Lights" on page 55
to see if the specific problem is
identified.
See "Diagnostic Lights" on page 55
to see if the specific problem is
identified. If the problem is not
identified, contact Dell for technical
assistance. For information on
contacting Dell, see your online
User's Guide.
Quick Reference Guide
55