Dell Precision T1600 (Early 2011) - Manual (Page 72)

Light Pattern
Problem Description Troubleshooting
Steps
Diagnostic LEDs Power Button LED
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.
Memory modules
are detected, but a
memory
configuration or
compatibility error
has occurred.
• Ensure that no
special
requirements
for memory
module/
connector
placement exist.
• Ensure that the
memory you are
using is
supported by
your computer.
A possible
expansion card
failure has
occurred.
• Determine if a
conflict exists
by removing an
expansion card
(not a graphics
card) and
restarting the
computer.
• If the problem
persists,
reinstall the
card you
removed, then
remove a
different card
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