Lenovo ThinkSystem ST50 V2, Maintenance Manual

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• “Intermittent unexpected reboots” on page 170
Intermittent external device problems
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility
and select
Security
➙
System Event Log
➙
View System Event Log
.
2. Make sure that:
• The latest version of corresponding driver is installed.
• The device is seated correctly without physical damage on the device or connector.
• System firmware has been updated to the latest version.
• You followed the installation instructions that came with the device, and the device is installed
properly.
• You have not loosened any other installed devices or cables.
3. For a USB device:
a. Make sure that the device is properly configured and enabled in Setup Utility.
b. Connect the device to another USB port.
c. If the device is connected to a USB hub, remove the device from the hub, and connect it directly to
the server.
Intermittent unexpected reboots
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any issues related to this device. To view the system event log,
go to
Setup Utility
and select
Security
➙
System Event Log
➙
View System Event Log
.
2. If the reboot occurs after the operating system starts, disable any automatic server restart (ASR) utilities,
such as the Automatic Server Restart IPMI Application for Windows, or any ASR devices that are
installed.
3. Look into the event logs for an event code that indicates a reboot. See “Event logs” on page 159 for
information about viewing the event log.
Network problems
Follow this procedure to resolve issues related to networking.
• “Cannot wake server using Wake on LAN” on page 170
• “Could not log in using LDAP account with SSL enabled” on page 171
Cannot wake server using Wake on LAN
Complete the following steps until the problem is solved.
1. Check the system event log and resolve any related problems. To view the system event log, go to
Setup Utility
and select
Security
➙
System Event Log
➙
View System Event Log
.
2. Change the Wake on LAN setting. Go to
Setup Utility
and select
Power
➙
Automatic Power On
➙
Wake on LAN
. The default setting is automatic. Change it to primary.
3. Remove and reinstall the network adapter.
4. Turn off the server and disconnect it from the power source; then, wait 10 seconds before restarting the
server.
5. If the problem recurs, replace the network adapter.
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ThinkSystem ST50 V2 Maintenance Manual