Lenovo ThinkPad Yoga 14, User Manual

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Solution : Machine UUID is invalid. Have the computer serviced.
• Message : Fan error
Solution : Cooling fan has failed. Have the computer serviced.
• Message : Thermal sensing error
Solution : The thermal sensor is not functioning correctly. Shut down the computer immediately and
have the computer serviced.
Beep errors
Table 7. Beep errors
Problem
Solution
One short beep, pause, three short beeps, pause, three
more short beeps, and one short beep The memory module has a problem. Have the computer
serviced.
Three short beeps, pause, one short beep, pause, one
more short beep, and three short beeps PCI resource allocation failure. Power off the computer
and remove the PCI devices. If the beeps persist, have
the computer serviced.
One long and two short beeps The video function has a problem. Have the computer
serviced.
Four cycles of four short beeps The Security Chip has a problem. Have the computer
serviced.
Five short beeps The system board has a problem. Have the computer
serviced.
Five short beeps, pause, five short beeps, and pause Continue to boot immediately when the error was
detected.
Memory module problems
Print these instructions now and keep the instructions with your computer for reference later.
If your memory module is not operating properly, check the following items:
1. Check for error messages during startup.
Follow the appropriate corrective actions for power-on self-test (POST) error messages.
2. Verify that the latest UEFI BIOS for your model has been installed.
3. Verify the proper memory configuration and compatibility including the maximum memory size and the
memory speed.
4. Run the Lenovo Solution Center program.
Networking problems
The following are the most common networking problems:
Ethernet problems
• Problem : The computer cannot connect to the network.
Solution : Make sure that:
– The supported dock is connected correctly to your computer.
– The cable is installed correctly.
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User Guide