Lenovo ThinkServer RD440 - Manual (Page 40)

2 CPU1 DIMM status LEDs
3 CPU2 DIMM status LEDs
The DIMM status LEDs help you to determine if there are any memory module errors.
Status Description Action
Solid off The memory modules are operating at a
normal temperature.
Solid on (amber) When a DIMM status LED is lit in amber, it
indicates that the corresponding memory
module is overheated. Check the BMC for errors and run the
diagnostic programs. See “Using a
diagnostic program” on page 204.
The following illustration shows the memory modules and their numbers.
Figure 15. DIMM status LEDs and DIMMs
4 Ambient temperature limit LED
The ambient temperature limit LED helps you to determine if the server is running at a normal temperature.
Status Description Action
Solid off The server is running at a normal
temperature.
Solid on (amber) The ambient temperature is below 7°C
(44.6°F) or over 40°C (104°F). Check the BMC for errors and run the
diagnostic programs. See “Using a
diagnostic program” on page 204.
28 ThinkServer RD440 User Guide and Hardware Maintenance Manual