Optional-device problems
Use this information to solve problems related to optional devices.
• “PCIe adapter is not recognized or is not functioning” on page 178
• “A Lenovo optional device that worked previously does not work now” on page 179
• “A Lenovo optional device that was just installed does not work” on page 178
• “A Lenovo optional device that worked previously does not work now” on page 179
External USB device is not recognized
Complete the following steps until the problem is solved.
1. Update the UEFI firmware to the latest version.
2. Make sure that the proper drivers are installed on the server. See the product documentation for the
USB device for information about device drivers.
3. Use Setup Utility to make sure that the device is configured correctly.
4. If the USB device is plugged into a hub or the console breakout cable, unplug the device and plug it
directly into the USB port on the front of the server.
PCIe adapter is not recognized or is not functioning
Complete the following steps until the problem is solved.
1. Make sure that:
• The device is supported by the server (see
https://serverproven.lenovo.com).
• The latest version of corresponding driver is installed.
• The device is seated correctly without physical damage on the device or connector.
• System firmware has been updated to the latest version.
2. Remove the device and install it to another PCIe slot if possible.
3. Check
http://datacentersupport.lenovo.com for any tech tips (also known as retain tips or service
bulletins) that might be related to the adapter.
Insufficient PCIe resources are detected
Complete the following steps until the problem is solved.
1. Remove any devices that were installed recently, and restart the server. If none was recently installed,
remove one of the PCIe adapters.
2. Go to Setup Utility and select Devices ➙ PCI Express Configuration; then, modify the setting to a
lower speed. For example, modify the speed of PCIe x16 slot from Auto or Gen4 to Gen3, Gen2, or
Gen1.
3. Save the settings and restart the server.
4. Depending on whether or not the restart is successful:
• If it is successful, shut down the server and reinstall the removed PCIe adapters one at a time, and
restart the server again after each addition.
• If it fails, remove another PCIe adapter and restart the server again.
A Lenovo optional device that was just installed does not work
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility and select Event Logs ➙ View Smbios Event Log.
2. Make sure that:
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ThinkSystem ST45 V3 User Guide