IBM 884872U User Guide - Page 20

Server, controls, power, Front

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v Predictive Failure Analysis® (PFA) feature on hard disk drives v Read-only memory (ROM) checksums v Remote system problem-analysis support v Status LEDs on the system board v System error logging v Upgradeable BIOS code and baseboard management controller firmware v Vital product data (VPD), including serial-number information and replacement part numbers, stored in complementary metal oxide semiconductor (CMOS) memory, for easier remote maintenance v Wake on LAN capability 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 Hard disk drive activity LEDs Power-on LED Hard disk drive status LEDs USB connectors 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. Hard disk drive activity LEDs: When one of these LEDs is flashing, it indicates that the associated SCSI hard disk drive is in use. Power-on LED: When this LED is lit and not flashing, it indicates that the server is turned on. When this LED is flashing, it indicates that the server is turned off and still connected to an ac power source. When this LED is off, it indicates that ac power is not present, or the power supply or the LED itself has failed. A power-on 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. 6 326 Type 8848: User's Guide

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v
Predictive
Failure
Analysis
®
(PFA)
feature
on
hard
disk
drives
v
Read-only
memory
(ROM)
checksums
v
Remote
system
problem-analysis
support
v
Status
LEDs
on
the
system
board
v
System
error
logging
v
Upgradeable
BIOS
code
and
baseboard
management
controller
firmware
v
Vital
product
data
(VPD),
including
serial-number
information
and
replacement
part
numbers,
stored
in
complementary
metal
oxide
semiconductor
(CMOS)
memory,
for
easier
remote
maintenance
v
Wake
on
LAN
capability
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
Hard disk drive
status LEDs
CD-eject button
Operator
information
panel
Power-on LED
Power-control
button
Reset button
USB connectors
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.
Hard
disk
drive
activity
LEDs:
When
one
of
these
LEDs
is
flashing,
it
indicates
that
the
associated
SCSI
hard
disk
drive
is
in
use.
Power-on
LED:
When
this
LED
is
lit
and
not
flashing,
it
indicates
that
the
server
is
turned
on.
When
this
LED
is
flashing,
it
indicates
that
the
server
is
turned
off
and
still
connected
to
an
ac
power
source.
When
this
LED
is
off,
it
indicates
that
ac
power
is
not
present,
or
the
power
supply
or
the
LED
itself
has
failed.
A
power-on
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.
6
326
Type
8848:
User’s
Guide