v
Hard
disk
drive
activity
LED:
This
LED
is
used
on
SAS
hard
disk
drives.
Each
hot-swap
hard
disk
drive
has
an
activity
LED,
and
when
this
LED
is
flashing,
it
indicates
that
the
drive
is
in
use.
Light
path
diagnostics
panel
The
light
path
diagnostics
panel
is
on
the
top
of
the
operator
information
panel.
To
access
the
light
path
diagnostics
panel,
push
the
release
button
on
the
operator
panel
to
the
left.
Pull
forward
on
the
unit
until
the
hinge
of
the
operator
panel
is
free
of
the
server
chassis.
Then
pull
down
on
the
unit,
so
that
the
operator
information
panel
is
at
a
right
angle
with
the
server.
Release button
Operator information
panel
Light path LEDs
The
following
illustration
shows
the
LEDs
and
controls
on
the
light
path
diagnostics
panel.
DASD
NMI
PCI
PS1
SP
PS2
CNFG
MEM
CPU
FAN
VRM
OVER SPEC
TEMP
REMIND
S ERR
Light Path
Diagnostics
RAID
BRD
v
Remind
button:
This
button
places
the
system-error
LED
on
the
front
panel
into
Remind
mode.
In
Remind
mode,
the
system-error
LED
flashes
rapidly
until
the
problem
is
corrected,
the
system
is
restarted,
or
a
new
problem
occurs.
By
placing
the
system-error
LED
indicator
in
Remind
mode,
you
acknowledge
that
you
are
aware
of
the
last
failure
but
will
not
take
immediate
action
to
correct
the
problem.
The
remind
function
is
handled
by
the
BMC.
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
to
the
right
of
the
remind
button.
12
IBM
System
x3550
Type
7978:
User’s
Guide
Summary of Contents for 79788BU
Page 1: ...IBM System x3550 Type 7978 User s Guide...
Page 2: ......
Page 3: ...IBM System x3550 Type 7978 User s Guide...
Page 30: ...16 IBM System x3550 Type 7978 User s Guide...
Page 62: ...48 IBM System x3550 Type 7978 User s Guide...
Page 100: ...86 IBM System x3550 Type 7978 User s Guide...
Page 101: ......
Page 102: ...Part Number 42C4977 Printed in USA 1P P N 42C4977...
