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If legacy Option ROMs must be used, do not set slot Option ROMs to Legacy on the Devices and I/O Ports
menu. Instead, set slot Option ROMs to Auto (the default setting), and set the System Boot Mode to Legacy
Mode. Legacy option ROMs will be invoked shortly before the system boots.
The server immediately displays the POST Event Viewer when it is turned on
Complete the following steps until the problem is solved.
1. Correct any errors that are indicated by the light path diagnostics LEDs.
2. Make sure that the server supports all the processors and that the processors match in speed and
cache size.
You can view processor details from system setup.
To determine if the processor is supported for the server, see
serverproven/index.shtml
3. (Trained technician only) Make sure that processor 1 is seated correctly
4. (Trained technician only) Remove processor 2 and restart the server.
5. Replace the following components one at a time, in the order shown, restarting the server each time:
a. (Trained technician only) Processor
b. (Trained technician only) System board
Server is unresponsive (POST is complete and operating system is running)
Complete the following steps until the problem is solved.
• If you are in the same location as the server, complete the following steps:
1. If you are using a KVM connection, make sure that the connection is operating correctly. Otherwise,
make sure that the keyboard and mouse are operating correctly.
2. If possible, log in to the server and verify that all applications are running (no applications are hung).
3. Restart the server.
4. If the problem remains, make sure that any new software has been installed and configured correctly.
5. Contact your place of purchase of the software or your software provider.
• If you are accessing the server from a remote location, complete the following steps:
1. Make sure that all applications are running (no applications are hung).
2. Attempt to log out of the system and log back in.
3. Validate the network access by pinging or running a trace route to the server from a command line.
a. If you are unable to get a response during a ping test, attempt to ping another server in the
enclosure to determine whether it is a connection problem or server problem.
b. Run a trace route to determine where the connection breaks down. Attempt to resolve a
connection issue with either the VPN or the point at which the connection breaks down.
4. Restart the server remotely through the management interface.
5. If the problem remains, verify that any new software has been installed and configured correctly.
6. Contact your place of purchase of the software or your software provider.
Server is unresponsive (POST failed and cannot start System Setup)
Configuration changes, such as added devices or adapter firmware updates, and firmware or application
code problems can cause the server to fail POST (the power-on self-test).
If this occurs, the server responds in either of the following ways:
ThinkSystem SR850 Maintenance Manual
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https://static.lenovo.com/us/en/
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