IBM 847691U Hardware Maintenance Manual - Page 202

Repeater Card, The SCSI Repeater Card

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Symptom An IBM option that used to work does not work now. Notes 1. If the option comes with its own test instructions, use those instructions to test the option. 2. An external option must be powered-on prior to powering-on the system. FRU/Action 1. Check all cable connections. 2. For SCSI options, check for proper termination. 3. Option Device The parallel port cannot be accessed, or the number of parallel ports displayed is less than the number of parallel ports installed. The serial port cannot be accessed, or the number of serial ports displayed is less than the number of serial ports installed. Serial port and USB port problems. The SCSI expansion enclosure used to work, but does not work now. The SCSI Repeater Card used to work, but does not work now. 1. Device 2. Adapter, if installed 3. System Board 1. Device 2. Adapter, if installed 3. System Board 1. Device 2. Adapter, if installed 3. System Board 1. Verify that all SCSI expansion enclosure hardware and cable connections are secure. 2. Verify termination of the last option in each SCSI chain, or the end of the SCSI cable. 3. If the SCSI expansion enclosure comes with its own test instructions, use those instructions to test it. 4. SCSI Repeater Card 1. Verify that all SCSI Repeater Card hardware and cable connections are secure. 2. Verify that all external SCSI option cables are connected correctly. 3. Verify the termination of the last option in each SCSI chain, or the end of the SCSI cable. 4. SCSI Repeater Card 194 Netfinity Server HMM

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Symptom
FRU/Action
An IBM option that used to
work does not work now.
Notes
1.
If the option
comes with its
own test
instructions, use
those instructions
to test the option.
2.
An external option
must be
powered-on prior
to powering-on
the system.
1.
Check all cable
connections.
2.
For SCSI options,
check for proper
termination.
3.
Option Device
The parallel port cannot be
accessed, or the number of
parallel ports displayed is
less than the number of
parallel ports installed.
1.
Device
2.
Adapter, if installed
3.
System Board
The serial port cannot be
accessed, or the number of
serial ports displayed is less
than the number of serial
ports installed.
1.
Device
2.
Adapter, if installed
3.
System Board
Serial port and USB port
problems.
1.
Device
2.
Adapter, if installed
3.
System Board
The SCSI expansion
enclosure used to work, but
does not work now.
1.
Verify that all SCSI
expansion enclosure
hardware and cable
connections are
secure.
2.
Verify termination of
the last option in each
SCSI chain, or the end
of the SCSI cable.
3.
If the SCSI expansion
enclosure comes with
its own test
instructions, use those
instructions to test it.
4.
SCSI Repeater Card
The SCSI Repeater Card
used to work, but does not
work now.
1.
Verify that all SCSI
Repeater Card
hardware and cable
connections are
secure.
2.
Verify that all external
SCSI option cables are
connected correctly.
3.
Verify the termination
of the last option in
each SCSI chain, or
the end of the SCSI
cable.
4.
SCSI Repeater Card
194
Netfinity Server HMM