The following illustration shows the memory modules and their numbers.
Figure 12. DIMM status LEDs and DIMMs
4
Ambient temperature limit LED
LED
Status
Description
Action
Solid off
The server is running at a normal
temperature.
Ambient temperature
limit LED
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 “Lenovo ThinkServer
Diagnostics” on page 14.
5
Microprocessor status LEDs (also known as CPU status LEDs)
LED
Status
Description
Action
Solid off
The microprocessors are
operating at a normal
temperature.
Microprocessor status
LED
Solid on (amber)
One or more microprocessors are
overheated.
Check the BMC for errors and
run the diagnostic programs.
See “Lenovo ThinkServer
Diagnostics” on page 14.
26
ThinkServer RD640 User Guide and Hardware Maintenance Manual
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