Intermittent external device problems
Complete the following steps until the problem is solved.
1. Update the UEFI and XCC firmware to the latest versions.
2. Make sure that the correct device drivers are installed. See the manufacturer's website for
documentation.
3. For a USB device:
a. Make sure that the device is configured correctly.
Restart the server and press F1 to display the Lenovo XClarity Provisioning Manager V3 system
setup interface. Then, click System Settings ➙ Devices and I/O Ports ➙ USB Configuration.
b. Connect the device to another port. If using a USB hub, remove the hub and connect the device
directly to the compute node. Make sure that the device is configured correctly for the port.
Intermittent KVM problems
Complete the following steps until the problem is solved.
Video problems:
1. Make sure that all cables and the console breakout cable are properly connected and secure.
2. Make sure that the monitor is working properly by testing it on another compute node.
3. Test the console breakout cable on a working compute node to ensure that it is operating properly.
Replace the console breakout cable if it is defective.
Keyboard problems:
Make sure that all cables and the console breakout cable are properly connected and secure.
Mouse problems:
Make sure that all cables and the console breakout cable are properly connected and secure.
Chapter 5. Problem determination 425
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