Fan Problems; Intermittent Problems - Lenovo ThinkSystem SR860 Maintenance Manual

Fan problems

Use this information to resolve issues related the to fans.
• "Abnormally high RPM (revolutions per minute)" on page 177
Abnormally high RPM (revolutions per minute)
Complete the following steps until the problem is solved.
1. Check to see if the system inlet perforation or heatsinks are clogged.
2. Make sure that all air baffles are correctly installed in the server.
3. Check the thermal grease on the processor, and make sure it's not contaminated.

Intermittent problems

Use this information to solve intermittent problems.
• "Intermittent external device problems" on page 177
• "Intermittent KVM problems" on page 177
• "Intermittent unexpected reboots" on page 178
Intermittent external device problems
Complete the following steps until the problem is solved.
1. Make sure that the correct device drivers are installed. See the manufacturer's website for
documentation.
2. For a USB device:
a. Make sure that the device is configured correctly.
Restart the server and press F1 to display the Lenovo XClarity Provisioning Manager system setup
interface. Then, click System Settings ➙ Devices and I/O Ports ➙ USB Configuration.
b. Connect the device to another port. If using a USB hub, remove the hub and connect the device
directly to the server. Make sure that the device is configured correctly for the port.
Intermittent KVM problems
Complete the following steps until the problem is solved.
Video problems:
1. Make sure that all cables and the console breakout cable are properly connected and secure.
2. Make sure that the monitor is working properly by testing it on another server.
3. Test the console breakout cable on a working server 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.
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Chapter 4 Problem determination
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