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Troubleshooting I/O module problems

Use this information to resolve problems with an I/O module.

If the I/O module has been functional in the BladeCenter S chassis, the first step is to determine if anything has changed. For example, verify that the configuration has not been updated or new components added to the BladeCenter S chassis.

IBM continually updates the support Web site with tips and techniques that you can use to resolve any problems that you may be having with the BladeCenter S system. Go to the BladeCenter support search Web site and search for the terms I/O module, 8886, and retain to see if any service bulletins have been generated.

Note
For more information about I/O modules, see the I/O module documentation. To determine which I/O modules are compatible with the BladeCenter S chassis, see the IBM ServerProven Web site.
  • I/O module will not power on
    If an I/O module will not power on, the problem may be caused by the blade itself, power supplies, or by configuration settings within the advanced management module.
  • LEDs are not lit for an I/O module
    If LEDs are not lit for an I/O module, the problem could be in the power supplies, the device itself, or the bay where the device is installed.
  • Cannot communicate with external ports on I/O module
    If a blade server cannot communicate with the external ports on an I/O module, verify through the advanced management module that the ports are enabled.
  • Blade server cannot communicate through CPM ports
    If a blade server cannot communicate to the network through a copper pass-thru module (CPM), verify that the pass-thru module is functioning, that the expansion cards in the blade server are compatible, and that the network switch setting match the settings on the copper pass-thru module.
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