Lenovo ThinkSystem SE350 Maintenance Manual page 166

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 the 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 resolved:
1. Update the UEFI firmware to the latest version.
2. Check the event log and resolve any issues related to the device.
3. Validate that the device is supported for the server (see
Make sure that the firmware level on the device is at the latest supported level and update the firmware if
applicable.
4. Make sure that the adapter is installed in a correct slot.
5. Make sure that the proper device drivers are installed for the device.
6. Resolve any resource conflicts if running legacy mode (UEFI). Check legacy ROM boot orders and
modify the UEFI setting for MM config base.
Note: Ensure that you modify the ROM boot order associated with the PCIe adapter to the first
execution order.
7. Check
http://datacentersupport.lenovo.com
bulletins) that might be related to the adapter.
8. Ensure any adapter external connections are correct and that the connectors are not physically
damaged.
9. Make sure that the PCIe adapter is installed with the supported operating system.
Insufficient PCIe resources are detected.
If you see an error message stating "Insufficient PCI Resources Detected," complete the following steps until
the problem is resolved:
1. Press Enter to access System Setup Utility.
2. Select System Settings ➙ Devices and I/O Ports ➙ MM Config Base; then, modify the setting to
increase the device resources. For example, modify 3 GB to 2 GB or modify 2 GB to 1 GB.
3. Save the settings and restart the system.
4. If the error recurs with the highest device resource setting (1GB), shutdown the system and remove
some PCIe devices; then, power on the system.
5. If the reboot failed, repeat step 1 to step 4.
6. If the error recurs, press Enter to access System Setup Utility.
7. Select System Settings ➙ Devices and I/O Ports ➙ PCI 64–Bit Resource Allocation; then, modify
the setting from Auto to Enable.
8. If the Boot Device does not support MMIO above 4GB for Legacy Boot, use UEFI Boot Mode or remove/
disable some PCIe devices.
9. Contact Lenovo technical support.
A Lenovo optional device that was just installed does not work.
1. Make sure that:
• The device is supported for the server (see
ThinkSystem SE350 and ThinkSystem SE350 Enclosures Maintenance Manual
158
https://serverproven.lenovo.com/server/se350
for any tech tips (also known as retain tips or service
https://serverproven.lenovo.com/server/se350
).
).