Dell Precision R7610 (Mid 2013) - Manual (Page 103)

Light Pattern Problem Description Troubleshooting Steps
Diagnostic LEDs Power Button LED
problem is with the
power supply.
Memory modules are
detected, but a memory
power failure has occurred.
• If two or more
memory modules
are installed,
remove the
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.
A possible system board
failure has occurred. Remove all peripheral cards
from the PCI and PCIe slots
and restart the computer. If
the computer boots, add the
peripheral cards back one
by one until you find the bad
one.
Power connector not
installed properly. Re-seat the 2x2 power
connector from the power
supply unit.
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