Lenovo ThinkSystem SR850, Maintenance Manual

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d. (Trained technician only) System board.
The wrong characters appear on the screen
Complete the following steps until the problem is solved:
1. Verify that the language and locality settings are correct for the keyboard and operating system.
2. If the wrong language is displayed, update the server firmware to the latest level. See “Firmware
updates” on page 4.
Network problems
Use this information to resolve issues related to networking.
• “Could not log in using LDAP account with SSL enabled” on page 151
Could not log in using LDAP account with SSL enabled
Complete the following steps until the problem is resolved:
1. Make sure that the license key is valid.
2. Generate a new license key and log in again.
Observable problems
Use this information to solve observable problems.
• “The server immediately displays the POST Event Viewer when it is turned on” on page 151
• “Server is unresponsive (POST is complete and operating system is running)” on page 151
• “Server is unresponsive (cannot press F1 to start System Setup)” on page 152
• “Voltage planar fault is displayed in the event log” on page 152
• “Unusual smell” on page 152
• “Server seems to be running hot” on page 153
• “Cracked parts or cracked chassis” on page 153
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 http://www.lenovo.com/serverproven/.
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:
Chapter 4
.
Problem determination
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