Lenovo System x3650 M4 HD Installation And Service Manual page 142

1. Look at the operator information panel on the front of the server.
• If the check log LED is lit, it indicates that information about an un-isolated fault condition in the
server is available in the IMM event log or in the system-event log.
• If the system-error LED is lit, it indicates that an error has occurred; go to 2.
The following illustration shows the operator information panel.
Power-control button/
power-on LED
Ethernet activity LEDs
1 2 3 4
Ethernet icon
Locator button/
locator LED
Figure 93. Operator information panel
2. Remove the server cover and look inside the server for lit LEDs. Certain components inside the server
have LEDs that are lit to indicate the location of a problem.
Note: You do not have to remove the server cover to view the LEDs on hard disk drives and power
supplies.
The following illustration shows the LEDs on the system board.
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Lenovo System x3650 M4 HD Installation and Service Guide
Reset button
System-error LED
Check log LED