2
System health LED
The system health LED helps you to determine if there are any system errors.
•
Off
: The server is off or the server is on and working correctly.
•
Amber
: The server has potential system errors. Check the information in the following table for potential
system errors and corresponding solutions.
•
Blinking
: TSM initialization is in progress.
Potential system error (system health LED: amber)
Solution
The temperature of the server reached the non-critical
temperature threshold.
Check the BMC for errors and check the system fans.
The voltage of the server reached the non-critical voltage
threshold.
Replace the system board.
Note:
This action must be performed only by Lenovo
service personnel. See Chapter 8 “Getting information,
help, and service” on page 141.
A fan is running at low speed.
Check the system fans.
A system fan has been removed.
1. Ensure that the system fans are connected securely
to the system board.
2. Reinstall the removed fan or install a new fan to
replace the removed fan.
The power supply has a critical error.
Check the BMC for detailed information.
A power cord has been disconnected or a redundant
power supply has been removed.
1. Ensure that the power supplies are installed securely.
2. Ensure that the power cords are connected securely
to the power supplies.
3. Install a new power supply to replace the removed
one.
The system is overheated.
Check the BMC for errors and then check the system
fans.
3
Power button with power status LED
You can press the power switch to turn on the server when you finish setting up the server. You also can
hold the power switch for several seconds to turn off the server if you cannot turn it off from the operating
system. See Chapter 4 “Turning on and turning off the server” on page 39. The power status LED helps you
to determine the current power status.
Status
Color
Description
On
Green
The server is on.
Off
None
The server is off.
20
ThinkServer RD350 User Guide and Hardware Maintenance Manual
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