Lenovo ThinkServer RD340 (English) User Guide - Page 59
ThinkServer Management Module status LED, on the system board.
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Note: Depending on the model, your server might look slightly different from the illustration in this topic. The server is designed so that LEDs remain lit when the server is connected to an ac power source but is not turned on, if the power supply is operating correctly. This helps you isolate problems when the server is not 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 ThinkServer Management Module status LED 2 System fan 7 error LED 3 System fan 6 error LED 4 System fan 5 error LED 5 System fan 3 error LED 6 System fan 2 error LED 7 System fan 1 error LED 1 ThinkServer Management Module status LED This LED indicates the status of the onboard ThinkServer Management Module (TMM). ThinkServer Management Module status LED On Off Blinking Color Green None Green Description The TMM is not ready. The TMM has no power or has failed. The TMM is working. Chapter 3. Product overview 47