Device Problems - Lenovo ThinkEdge SE350 V2 User Manual

3. Test the console breakout cable on a working 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.
Intermittent unexpected reboots
Note: Some correctable errors require that the server reboot so that it can disable a device, such as a
memory DIMM or a processor to allow the machine to boot up properly.
1. If the reset occurs during POST and the POST watchdog timer is enabled, make sure that sufficient time
is allowed in the watchdog timeout value (POST Watchdog Timer).
To check the POST watchdog time, restart the server and press the key according to the on-screen
instructions to display the LXPM system setup interface. (For more information, see the "Startup"
section in the LXPM documentation compatible with your server at
.) Then, click BMC Settings ➙ POST Watchdog Timer.
overview/
2. If the reset occurs after the operating system starts, enter the operating system when the system
operates normally and set up operating system kernel dump process (Windows and Linux base
operating systems will be using different method). Enter the UEFI setup menus and disable the feature,
or disable it with the following OneCli command.
OneCli.exe config set SystemRecovery.RebootSystemOnNMI Disable --bmcxcc_userid PASSW0RD@xcc_ipaddress
3. See the management controller event log to check for an event code that indicates a reboot. See
logs" on page 185 for information about viewing the event log. If you are using Linux base operating
system, then capture all logs back to Lenovo support for further investigation.
Keyboard, mouse, KVM switch, or USB-device problems
Use this information to solve problems related to a keyboard, mouse, KVM switch or USB-device problems.
• "All or some keys on the keyboard do not work" on page 197
• "Mouse does not work" on page 197
• "KVM switch problems" on page 198
• "USB-device does not work" on page 198
All or some keys on the keyboard do not work
1. Make sure that:
• The keyboard cable is securely connected.
• The server and the monitor are turned on.
2. If you are using a USB keyboard, run the Setup utility and enable keyboardless operation.
3. If you are using a USB keyboard and it is connected to a USB hub, disconnect the keyboard from the
hub and connect it directly to the server.
4. Replace the keyboard.
Mouse does not work
1. Make sure that:
https://pubs.lenovo.com/lxpm-
.
Chapter 8 Problem determination
"Event
197