Lenovo ThinkEdge SE450 Maintenance Manual page 199

1. Make sure that the proper drivers are installed on the compute node. See the product documentation for
the USB device for information about device drivers.
2. Use the Setup utility to make sure that the device is configured correctly.
3. 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 compute node.
PCIe adapter is not recognized or is not functioning
Complete the following steps until the problem is resolved:
1. Check the event log and resolve any issues related to the device.
2. Validate that the device is supported for the server (see
3. Make sure that the adapter is installed in a correct slot.
4. Make sure that the proper device drivers are installed for the device.
5. Resolve any resource conflicts if running legacy mode (UEFI).
6. Check
http://datacentersupport.lenovo.com
bulletins) that might be related to the adapter.
7. Ensure any adapter external connections are correct and that the connectors are not physically
damaged.
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
• You followed the installation instructions that came with the device and the device is installed
correctly.
• You have not loosened any other installed devices or cables.
• You updated the configuration information in system setup. When you start a server and press F1 to
display the system setup interface. Whenever memory or any other device is changed, you must
update the configuration.
2. Reseat the device that you just installed.
3. Replace the device that you just installed.
https://serverproven.lenovo.com/server/se450
for any tech tips (also known as retain tips or service
https://serverproven.lenovo.com/server/se450
).
.
Chapter 4 Problem determination
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