IBM 84885BU, Maintenance And Troubleshooting Manual

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Server controls, connectors, LEDs, and power
This section describes the controls, connectors, and light-emitting diodes (LEDs)
and how to turn the server on and off.
Front view
The following illustration shows the controls and LEDs on the front of the server.
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
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.
Diskette-eject button
Press this button to release a diskette from the diskette drive.
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 and not flashing, it indicates that the server is turned
on. When this LED is flashing, it indicates that the server is off and still
connected to an ac power source.
Power-control button
Press this button to turn the server on and off manually.
System-error LED
When this amber 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 (see
“System board error LEDs” on page 17).
Diskette drive activity LED
When this LED is lit, it indicates that the diskette drive is in use.
USB connectors
Connect USB devices to these connectors.
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xSeries 226 Type 8488 and 8648: Hardware Maintenance Manual and Troubleshooting Guide