Dell Precision 7F867 Setup And Quick Reference Manual page 46

S y s t e m L i g h t C o d e s
Power Light Hard-Drive Light Cause
Solid green and a N/A
beep code during
POST
Solid green power N/A
light and no beep
code and no video
during POST
Solid green power N/A
light and no beep
code but the
computer locks up
during POST
46
Setup and Quick Re ference Guide
(continued)
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.
Diagnostic Lights
When you turn on your computer, it performs a series of self-diagnostic
tests. A successful power-on self-test (POST) ends with a single beep that
signifies the start of normal operation. If the computer fails to complete the
POST, a series of lights located on the computer can help you understand
which test failed or why the computer stopped responding. These lights
communicate problems encountered before and during POST only, not
during normal operation. To locate the diagnostic lights, see "Back Panel" on
page 46.
The following table lists the code for the diagnostic lights, gives probable
causes, and suggests corrective actions. The lights are labeled to help you
match the pattern on your computer with ones shown in the table.
B a c k P a n e l
diagnostic lights
Corrective Action
See "Beep Codes" on page 49 for
instructions on diagnosing the beep
code. Also, check the diagnostic lights
to see if the specific problem is
identified.
Check the diagnostic lights to see if
the specific problem is identified.
Also, see "Video Problems" in the
User's Guide.
Check the diagnostic lights to see if
the specific problem is identified. If
the problem is not identified, contact
Dell for technical assistance.