Dell Precision T1600 (Early 2011) - Manual (Page 68)

Light Pattern
Problem Description Troubleshooting
Steps
Diagnostic LEDs Power Button LED
failure has
occurred.
modules, then
re-install one
module 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 only one
memory module
is installed, try
moving it to a
different DIMM
connector and
re-start the
computer.
• If available,
install verified
working
memory of the
same type into
your computer.
A possible CPU or
system board failure
has occurred. Replace the CPU
with a known good
CPU. If the
computer still fails
to boot, inspect the
CPU socket for
damage.
BIOS may be
corrupt or missing. The computer
hardware is
operating normally
but the BIOS may be
corrupt or missing.
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