Option problems
Action
An IBM option that used
to work does not work
now.
Verify that all of the option hardware and cable connections are secure.
If the option comes with its own test instructions, use those instructions to
test the option.
If the items above are correct and the test programs found no problem,
have the system and the option serviced.
If the failing option is a SCSI option, verify that:
1. The cables for all external SCSI options are connected correctly.
2. The last option in each SCSI chain, or the end of the SCSI cable, is
terminated correctly. (See “Termination” on page 81 for more
information on SCSI termination.)
3. All external SCSI options are turned on. External SCSI options must
be turned on before the system is turned on.
If the problem recurs, have the system serviced.
Parallel port problems
Action
The number of parallel
ports displayed is less
than the number of
parallel ports installed.
Verify that:
1. Each port is assigned a unique address.
2. The parallel-port adapter, if you installed one, is seated properly.
If the items above are correct, have the system serviced.
Serial port problems
Action
The number of serial
ports displayed is less
than the number of serial
ports installed.
Verify that:
1. Each port is assigned a unique address.
2. The serial-port adapter, if you installed one, is seated properly.
If the items above are correct, have the system serviced.
Universal Serial Bus
(USB) port problems
Action
The number of serial
buses displayed is less
than the number of serial
buses installed.
Verify that:
1. Each bus is assigned a unique address.
2. The serial-port adapter, if you installed one, is seated properly.
If the items above are correct, have the system serviced.
A USB device does not
work.
Verify that:
1. You are not trying to use a USB device during POST if you have a
standard (non-USB) keyboard attached to the keyboard port.
Note:
If a standard (non-USB) keyboard is attached to the keyboard
port, then the USB is disabled and no USB device will work
during POST.
2. The correct USB device driver is installed.
If the problem still persists, have the system serviced.
152
xSeries 370 User's Reference
Summary of Contents for eServer 370 xSeries
Page 1: ...User s Reference xSeries 370...
Page 2: ......
Page 3: ...IBM xSeries 370 User s Reference...
Page 32: ...16 xSeries 370 User s Reference...
Page 188: ...172 xSeries 370 User s Reference...
