Lenovo 3797 User Manual
Page 160
Table
15.
EasyLED
panel
LEDs
(continued)
LED
Description
Action
OVER
SPEC
The
power
supplies
are
using
more
power
than
their
maximum
rating.
If
the
OVER
SPEC
LED
on
the
EasyLED
panel
is
lit,
or
any
of
the
six
12V
rail
error
LEDs
(A,
B,
C,
D,
E,
or
AUX)
on
the
system
board
are
lit,
follow
the
instructions
below.
If
the
12V
channel
A
error
LED
is
lit,
complete
the
following
steps:
1.
Turn
the
server
off
and
disconnect
the
power
from
the
server.
2.
Remove
the
optical
drive,
fans,
hard
disk
drives,
and
hard
disk
drive
backplane.
3.
Restart
the
server
to
see
if
the
problem
remains.
4.
Reinstall
each
device
that
was
removed
in
step
b
one
at
a
time,
starting
the
server
each
time,
to
isolate
the
failing
device.
5.
Replace
any
failing
device.
6.
(Trained
service
technician
only)
Replace
the
system
board,
if
the
problem
remains.
If
the
12V
channel
B
error
LED
is
lit,
complete
the
following
steps:
1.
Turn
the
server
off
and
disconnect
the
power
from
the
server.
2.
Remove
the
PCI
riser
card
in
connector
1,
all
DIMMs,
and
the
microprocessor
in
socket
2.
3.
Restart
the
server
to
see
if
the
problem
remains.
4.
Reinstall
each
device
that
was
removed
in
step
b
one
at
a
time,
starting
the
server
each
time,
to
isolate
the
failing
device.
5.
Replace
any
failing
device.
6.
(Trained
service
technician
only)
Replace
the
system
board,
if
the
problem
remains.
(Continued
on
the
next
page)
144
ThinkServer
RD220
Types
3729,
3779,
3797,
and
3798:
Installation
and
User
Guide