Optional-Device Problems - Lenovo x3550 M5 Installation And Service Manual

Table 16. Network connection problems and actions
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
• Go to the Support website at http://www.lenovo.com/support to check for technical information, hints, tips,
and new device drivers or to submit a request for information.
Symptom
The server will not connect to
the network.
The server intermittently looses
connection.

Optional-device problems

Use this information to solve optional-device problems.
Table 17. Optional-device problems and actions
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
• Go to the Support website at http://www.lenovo.com/support to check for technical information, hints, tips,
and new device drivers or to submit a request for information.
Symptom
An optional device that was
just installed does not work.
An optional device that worked
previously does not work now.
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Lenovo System x3550 M5 Installation and Service Guide
Action
1. If the network adapter is newly installed, verify that it is supported by the server
(see http://www.lenovo.com/ serverproven/).
2. Verify the network adapter slot power state and configuration (see "Using the
Setup utility" on page 36).
3. Check to make sure that the server is properly connected to the network and
that there is no damage to the network cables.
4. Check the firmware device driver.
5. Check the Retain Tips for related issues on the Support Web site at
http://www.lenovo.com/support.
1. Verify that the network router or switch is operating properly.
2. Check to make sure that the server is properly connected to the network.
3. Check the firmware device driver.
4. Check the Retain Tips for related issues on the Support Web site at
http://www.lenovo.com/support.
Action
1. Make sure that:
• The device is designed for the server (see http://www.lenovo.com/
serverproven/).
• You followed the installation instructions that came with the device and the
device is installed correctly.
• You have not loosened any other installed devices or cables.
• You updated the configuration information in the Setup utility. Whenever
memory or any other device is changed, you must update the configuration.
2. Reseat the device that you just installed.
3. Replace the device that you just installed.
1. Make sure that all of the cable connections for the device are secure.
2. If the device comes with test instructions, use those instructions to test the
device.
3. If the failing device is a SCSI device, make sure that:
• The cables for all external SCSI devices are connected correctly.