IBM 8676 Hardware Maintenance Manual - Page 14

Server, controls, power, Front

Page 14 highlights

Server controls, LEDs and power This section describes the controls and light-emitting diodes (LEDs) and how to turn the server on and off. Front view The following illustration shows the controls, LEDs, and connectors on the front of the server. CD-eject button CD-ROM drive activity LED Diskette-eject button Diskette drive activity LED Hard disk drive status LEDs USB 1 connector USB 2 connector Hard disk drive activity LEDs Power LED Operator information panel Power control button Reset button CD-ROM drive activity LED: When this LED is lit, it indicates that the CD-ROM drive is in use. CD-eject button: Press this button to release a CD from the CD-ROM drive. Diskette-eject button: Press this button to release a diskette from the diskette drive. Hard disk drive activity LEDs: When either of these LEDs is flashing, it indicates that the associated hard disk drive is in use. Power LED: When this LED is lit, it indicates that ac and dc power are present in the server. When this LED is flashing, it indicates that the server is in Standby mode. When this LED is off, ac power is not present, or the power supply or the LED itself has failed. A power LED is also on the rear of the server. Note: If this LED is off, it does not mean that there is no electrical power in the server. The LED might be burned out. To remove all electrical power from the server, you must disconnect the power cord from the electrical outlet. Power-control button: Press this button to turn the server on and off manually. 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. USB connectors: Connect USB devices to these connectors. Hard disk drive status LEDs: When either of these LEDs is lit, it indicates that the associated hard disk drive has failed. If an optional RAID adapter is installed in the server and the LED flashes slowly (one flash per second), the drive is being rebuilt. If the LED flashes rapidly (three flashes per second), the controller is identifying the drive. 4 xSeries 335 Type 8676, Type 8830: Hardware Maintenance Manual and Troubleshooting Guide

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Server
controls,
LEDs
and
power
This
section
describes
the
controls
and
light-emitting
diodes
(LEDs)
and
how
to
turn
the
server
on
and
off.
Front
view
The
following
illustration
shows
the
controls,
LEDs,
and
connectors
on
the
front
of
the
server.
Hard disk drive
activity LEDs
CD-ROM drive
activity LED
Diskette drive
activity LED
Hard disk drive
status LEDs
CD-eject button
Diskette-eject
button
Operator
information
panel
Power LED
Power control
button
Reset button
USB 1 connector
USB 2 connector
CD-ROM
drive
activity
LED:
When
this
LED
is
lit,
it
indicates
that
the
CD-ROM
drive
is
in
use.
CD-eject
button:
Press
this
button
to
release
a
CD
from
the
CD-ROM
drive.
Diskette-eject
button:
Press
this
button
to
release
a
diskette
from
the
diskette
drive.
Hard
disk
drive
activity
LEDs:
When
either
of
these
LEDs
is
flashing,
it
indicates
that
the
associated
hard
disk
drive
is
in
use.
Power
LED:
When
this
LED
is
lit,
it
indicates
that
ac
and
dc
power
are
present
in
the
server.
When
this
LED
is
flashing,
it
indicates
that
the
server
is
in
Standby
mode.
When
this
LED
is
off,
ac
power
is
not
present,
or
the
power
supply
or
the
LED
itself
has
failed.
A
power
LED
is
also
on
the
rear
of
the
server.
Note:
If
this
LED
is
off,
it
does
not
mean
that
there
is
no
electrical
power
in
the
server.
The
LED
might
be
burned
out.
To
remove
all
electrical
power
from
the
server,
you
must
disconnect
the
power
cord
from
the
electrical
outlet.
Power-control
button:
Press
this
button
to
turn
the
server
on
and
off
manually.
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.
USB
connectors:
Connect
USB
devices
to
these
connectors.
Hard
disk
drive
status
LEDs:
When
either
of
these
LEDs
is
lit,
it
indicates
that
the
associated
hard
disk
drive
has
failed.
If
an
optional
RAID
adapter
is
installed
in
the
server
and
the
LED
flashes
slowly
(one
flash
per
second),
the
drive
is
being
rebuilt.
If
the
LED
flashes
rapidly
(three
flashes
per
second),
the
controller
is
identifying
the
drive.
4
xSeries
335
Type
8676,
Type
8830:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide