Lenovo 3797 User Manual
Page 34
There
are
two
types
of
checkpoint
codes:
field
programmable
gate
array
(FPGA)
hardware
checkpoint
codes
and
UEFI
checkpoint
codes.
The
UEFI
checkpoint
codes
might
change
because
of
code
sequence
and
timing
changes
or
when
the
server
firmware
is
updated.
v
Reset
button:
Press
this
button
to
reset
the
server
and
run
the
power-on
self-test
(POST).
You
might
have
to
use
a
pen
or
the
end
of
a
straightened
paper
clip
to
press
the
button.
The
reset
button
is
in
the
lower
right-hand
corner
of
the
diagnostics
panel.
For
more
information
about
EasyLED
diagnostics,
see
the
Hardware
Maintenance
Manual.
The
following
table
lists
the
LEDs
on
the
EasyLED
diagnostics
panel
and
suggested
actions
to
solve
the
detected
problems.
v
Follow
the
suggested
actions
in
the
order
in
which
they
are
listed
in
the
Action
column
until
the
problem
is
solved.
v
See
the
parts
listing
in
the
Hardware
Maintenance
Manual
to
determine
which
components
are
customer
replaceable
units
(CRU)
and
which
components
are
field
replaceable
units
(FRU).
v
If
an
action
step
is
preceded
by
“(Trained
service
technician
only),”
that
step
must
be
performed
only
by
a
trained
service
technician.
LED
Description
Action
None,
but
the
system-
error
LED
is
lit.
An
error
has
occurred
and
cannot
be
diagnosed,
or
the
IMM
has
failed.
The
error
is
not
represented
by
an
EasyLED
diagnostics
LED.
Use
the
Setup
utility
to
check
the
system-event
log
for
information
about
the
error.
OVER
SPEC
The
server
was
shut
down
due
to
a
power-supply
overload
condition
on
one
of
the
power
channels.
The
power
supplies
are
using
more
power
than
the
maximum
rating.
1.
If
any
of
the
12v
power
channel
error
LEDs
(A,
B,
C,
D,
E,
or
AUX)
on
the
system
board
are
lit
also,
see
(See
for
the
location
of
the
power
channel
error
LEDs.)
2.
Check
the
power
supply
LEDs
for
an
error
indication
(AC
LED
and
DC
LED
are
not
both
lit,
or
the
power-supply
error
LED
is
lit).
Swap
power
supplies
1
and
2
with
each
other.
v
If
the
error
follows
the
power
supply,
replace
the
failed
power
supply.
v
If
the
error
remains
with
the
power
bay,
(trained
service
technician
only)
replace
the
system
board.
3.
Remove
optional
devices
from
the
server.
LOG
An
error
message
has
been
written
to
the
system-event
log
Check
the
IMM
system
event
log
and
the
system-error
log
for
information
about
the
error.
Replace
any
components
that
are
identified
in
the
error
logs.
LINK
Reserved.
PS
A
power
supply
has
failed.
1.
Check
the
power
supply
LEDs
for
an
error
indication
(AC
LED
and
DC
LED
are
not
both
lit).
See
for
more
information.
2.
Make
sure
that
the
failing
power
supply
is
correctly
seated.
3.
Replace
the
failed
power
supply.
18
ThinkServer
RD220
Types
3729,
3779,
3797,
and
3798:
Installation
and
User
Guide