Dell Precision T1600 (Early 2011) - Manual (Page 73)

Light Pattern
Problem Description Troubleshooting
Steps
Diagnostic LEDs Power Button LED
and restart the
computer.
• Repeat this
process for
each expansion
card installed. If
the computer
starts normally,
troubleshoot the
last card
removed from
the computer
for resource
conflicts.
A possible system
board resource
and/or hardware
failure has
occurred.
• Clear CMOS.
• Disconnect all
internal and
external
peripherals, and
restart the
computer. If the
computer boots,
add the
peripheral cards
back one by one
until you find the
bad one.
• If the problem
persists, the
system board /
system board
component is
faulty.
Some other failure
has occurred.
• Ensure that the
display/monitor
is plugged into a
discrete graphic
card.
• Ensure that all
hard drives and
optical drive
cables are
properly
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