IBM 8649 Hardware Maintenance Manual - Page 14

Controls, indicators

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Controls and indicators Ethernet link status LED Ethernet transmit/receive activity LED CD-eject button CD-ROM drive activity LED Diskette-eject button Diskette drive activity LED Hard disk drive activity LED Power-on LED Power-control button System error LED CD-eject button Press this button to release a CD from the CD-ROM drive. CD-ROM drive activity LED When this LED is lit, it indicates that the CD-ROM drive is in use. Diskette-eject button Press this button to release a diskette from the diskette drive. Diskette drive activity LED When this LED is lit, it indicates that the diskette drive is in use. Hard disk drive activity LED When this LED is flashing, it indicates that a hard disk drive is in use. Power-on LED When this LED is lit, it indicates that the server is turned on. Power-control button Press this button to turn the server on and off manually. You can install a circular disk, called the power-control button shield, over the power-control button to prevent accidental manual power-off. This disk is provided with your server. System error LED When this LED is lit, it indicates that a system error has occurred. An LED on the system board might also be lit to help isolate the error. Detailed troubleshooting information is in Chapter 6, "Symptom-to-FRU index," on page 101 Ethernet transmit/receive activity LED This LED is on the Ethernet connector on the back of the server. When this LED is lit, it indicates that there is activity between the server and the network. 4 IBM xSeries 225 Types 8649: Hardware Maintenance Manual and Troubleshooting Guide

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Controls
and
indicators
CD-eject
button
CD-ROM drive
activity LED
Ethernet link
status LED
Ethernet
transmit/receive
activity LED
Diskette-eject
button
Hard disk drive
activity LED
Power-on
LED
Power-control
button
System error
LED
Diskette drive
activity LED
CD-eject
button
Press
this
button
to
release
a
CD
from
the
CD-ROM
drive.
CD-ROM
drive
activity
LED
When
this
LED
is
lit,
it
indicates
that
the
CD-ROM
drive
is
in
use.
Diskette-eject
button
Press
this
button
to
release
a
diskette
from
the
diskette
drive.
Diskette
drive
activity
LED
When
this
LED
is
lit,
it
indicates
that
the
diskette
drive
is
in
use.
Hard
disk
drive
activity
LED
When
this
LED
is
flashing,
it
indicates
that
a
hard
disk
drive
is
in
use.
Power-on
LED
When
this
LED
is
lit,
it
indicates
that
the
server
is
turned
on.
Power-control
button
Press
this
button
to
turn
the
server
on
and
off
manually.
You
can
install
a
circular
disk,
called
the
power-control
button
shield,
over
the
power-control
button
to
prevent
accidental
manual
power-off.
This
disk
is
provided
with
your
server.
System
error
LED
When
this
LED
is
lit,
it
indicates
that
a
system
error
has
occurred.
An
LED
on
the
system
board
might
also
be
lit
to
help
isolate
the
error.
Detailed
troubleshooting
information
is
in
Chapter
6,
“Symptom-to-FRU
index,”
on
page
101
Ethernet
transmit/receive
activity
LED
This
LED
is
on
the
Ethernet
connector
on
the
back
of
the
server.
When
this
LED
is
lit,
it
indicates
that
there
is
activity
between
the
server
and
the
network.
4
IBM
xSeries
225
Types
8649:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide