IBM 847691U Hardware Maintenance Manual - Page 90

Status indicators, Power-On Light, Hard Disk Drive In-Use Light, Ethernet Activity Light

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Socket 7 Status indicators: The following illustration identifies the indicators located on the front of the server. Power-On Light Hard-Disk Drive In-Use Light Ethernet Activity Light CD-ROM Drive In-Use Light Diskette Drive In-Use Light Power-On Light: This light comes on when you turn on the server by pressing the power switch. Hard Disk Drive In-Use Light: This light comes on when the server is accessing a SCSI hard disk drive. If this light remains illuminated, it might indicate that either the SCSI bus or the system microprocessor has stopped. Ethernet Activity Light: This light comes on when the Ethernet controller is transmitting data to or receiving data from another system in the network. Ethernet Diagnostic LED: The server contains diagnostic light-emitting diodes (LEDs) for the Ethernet connector located on the rear panel of the server. When the green LED is on, it indicates that the Ethernet controller is connected to a hub or switch and is receiving link pulses. This LED is also known as the Link OK light. When the amber LED is on, it indicates that the Ethernet network is operating at 100 Mbps. When this LED is off, it indicates that the Ethernet network is operating at 10 Mbps. CD-ROM Drive In-Use Light: This light comes on when the CD-ROM drive is accessed. 82 Netfinity Server HMM

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Status indicators:
The following illustration
identifies the indicators located on the front of the server.
Socket 7
Socket 7
Hard-Disk Drive
In-Use Light
Diskette Drive
In-Use Light
Ethernet Activity Light
CD-ROM Drive
In-Use Light
Power-On Light
Power-On Light:
This light comes on
when you turn on the server by pressing
the power switch.
Hard Disk Drive In-Use Light:
This light
comes on when the server is accessing a
SCSI hard disk drive.
If this light remains
illuminated, it might indicate that either
the SCSI bus or the system
microprocessor has stopped.
Ethernet Activity Light:
This light
comes on when the Ethernet controller is
transmitting data to or receiving data from
another system in the network.
Ethernet Diagnostic LED:
The server contains diagnostic
light-emitting diodes (LEDs) for the
Ethernet connector located on the rear
panel of the server.
±
When the green LED is on, it
indicates that the Ethernet controller
is connected to a hub or switch and
is receiving link pulses.
This LED is
also known as the Link OK light.
±
When the amber LED is on, it
indicates that the Ethernet network is
operating at 100 Mbps.
When this
LED is off, it indicates that the
Ethernet network is operating at 10
Mbps.
CD-ROM Drive In-Use Light:
This light
comes on when the CD-ROM drive is
accessed.
82
Netfinity Server HMM