IBM SelectaDock II, Hardware Maintenance Manual

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Undetermined Problems
Use the following procedure when the diagnostic tests do
not identify the failing adapter or device.
Check that all cables, wires, and connectors are connected
so that they do not cause a short circuit. If any problems
are found, reconnect or replace them.
Check the power supply for correct operation (see “Power
Supply” on page 6). If the power supply is operating
correctly, return here and continue with the following
procedure:
1. Power-off the computer.
2. Remove or disconnect the following adapters or
devices one at a time from the SelectaDock Docking
System. (Do not isolate adapters or devices that are
known to be good.)
a. Non-IBM devices.
b. A modem, printer, mouse, external keyboard,
external display, external diskette drive, numeric
keypad, or other external devices.
c. Any adapter.
Note
Removing an adapter or device may cause
configuration errors. Ignore error code 174.
d. SCSI device.
e. Hard disk drive.
3. Power-on the system and check if the problem has
changed.
4. If the symptom remains, repeat steps 1 through 3
until you find the failing adapter or device, or until all
adapters or devices have been removed.
5. If all adapters or devices have been removed and the
problem remains, replace the following the
SelectaDock Docking System FRUs one at a time.
Note
If a replaced FRUs do not resolve the problem,
put the original FRU back in the SelectaDock
Docking System. Do not replace nondefective
FRUs.
a. Riser card
b. Main card
c. SelectaDock Docking System audio card
If the problem goes away when you remove an adapter,
but replacing the adapter does not correct the problem,
replace the main card of the SelectaDock Docking System.
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IBM Mobile Systems HMM