v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
If an action step is preceded by “(Trained technician only),” that step must be performed only by a Trained
service technician.
v
Go to the IBM support website at http://www.ibm.com/supportportal/ to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Symptom
Action
The server unexpectedly shuts
down, and the LEDs on the
operator information panel are
not lit.
See “Solving undetermined problems” on page 257.
Serial-device problems
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
If an action step is preceded by “(Trained technician only),” that step must be performed only by a Trained
service technician.
v
Go to the IBM support website at http://www.ibm.com/supportportal/ to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Symptom
Action
The number of serial ports that
are identified by the operating
system is less than the number
of installed serial ports.
1. Make sure that:
v
Each port is assigned a unique address in the Setup utility and none of the
serial ports is disabled.
v
The serial-port adapter (if one is present) is seated correctly.
2. Reseat the serial port adapter.
3. Replace the serial port adapter.
A serial device does not work.
1. Make sure that:
v
The device is compatible with the server.
v
The serial port is enabled and is assigned a unique address.
v
The device is connected to the correct connector (see “Internal LEDs,
connectors, and jumpers” on page 12).
2. Reseat the following components:
a. Failing serial device
b. Serial cable
3. Replace the components listed in step 2 one at a time, in the order shown,
restarting the server each time.
4. (Trained service technician only) Replace the system board.
Chapter 3. Diagnostics
185
Summary of Contents for System x iDataPlex dx360 M4 7912
Page 1: ...System x iDataPlex dx360 M4 Types 7912 and 7913 Problem Determination and Service Guide...
Page 2: ......
Page 3: ...System x iDataPlex dx360 M4 Types 7912 and 7913 Problem Determination and Service Guide...
Page 22: ...4 System x iDataPlex dx360 M4 Types 7912 and 7913 Problem Determination and Service Guide...
Page 278: ...260 System x iDataPlex dx360 M4 Types 7912 and 7913 Problem Determination and Service Guide...
Page 292: ...274 System x iDataPlex dx360 M4 Types 7912 and 7913 Problem Determination and Service Guide...
Page 392: ...374 System x iDataPlex dx360 M4 Types 7912 and 7913 Problem Determination and Service Guide...
Page 399: ......
Page 400: ...Part Number 46W8218 Printed in USA 1P P N 46W8218...
