Lenovo ThinkServer TD340 - Manual (Page 69)

turned on. Many errors are first indicated by a lit error LED on the diagnostic panel of the server. If an LED is
lit, one or more LEDs elsewhere in the server might also be lit to direct you to the source of the error.
The following illustration shows the ThinkServer Management Module status LED and system fan error LEDs
on the system board.
Figure 33. System board LEDs
1 System fan 3 error LED 4 Microprocessor 2 fan error LED
2 System fan 1 error LED 5 Microprocessor 1 fan error LED
3 System fan 2 error LED 6 ThinkServer Management Module status LED
1 - 3 System fan error LEDs
When a system fan error LED on the system board is lit, it indicates that the corresponding system fan is
operating too slowly or has failed. To solve the problem, you might need to reinstall or replace the system
fan. See “Replacing the front system fan 1” on page 188 or “Replacing the rear system fan” on page 190. If
it is a system board problem, contact the Lenovo Customer Support Center.
4 5 Microprocessor fan error LEDs
When a microprocessor fan error LED on the system board is lit, it indicates that the corresponding
microprocessor fan is operating too slowly or has failed. To solve the problem, you might need to reinstall or
replace the microprocessor fan. See “Replacing the heat sink and fan assembly 1” on page 193. If it is a
system board problem, contact the Lenovo Customer Support Center.
Chapter 3 . Product overview 57