Dell Precision R5500 Owner's Manual page 82

Light Pattern
Diagnostic LEDs
82
Power Button LED
Problem Description
Memory modules
are detected, but a
memory failure has
occurred.
A possible graphics
card failure has
occurred.
Troubleshooting
Steps
• If two or more
memory
modules are
installed,
remove the
modules (see
your service
manual), then
re-install one
module (see
your service
manual) and re-
start the
computer. If the
computer starts
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.
• Ensure that the
display/monitor
is plugged into a
discrete graphic
card.
• Re-seat any
installed
graphics cards.
• If available,
install a working
graphics card
into your
computer.