Lenovo ThinkServer RD650 - Manual (Page 63)

System fan fault LEDs
The following illustration shows the system fan fault LEDs 1 on the system board.
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Figure 34. System fan fault LEDs
You can view the system fan fault LEDs 1 from the top of the system fans. When a system fan fault LED is
lit, it indicates that the corresponding system fan is operating slowly or has failed. To solve the problem,
reinstall or replace the system fan. See “Installing or replacing a system fan” on page 74. If it is a system
board problem, contact the Lenovo Customer Support Center.
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Figure 35. Viewing the system fan fault LEDs from the top of the system fans
Chapter 3 . Product overview 49