Lenovo 2593, 2594, 2579, 2577 CPU1 Dimm status LEDs CPU2 Dimm status LEDs, Power supply error LEDs

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CPU1 DIMM status LEDs

CPU2 DIMM status LEDs

When a DIMM status LED is lit in amber, it indicates that the corresponding memory module is overheated. The following illustration shows the memory modules and their numbers.

Figure 12. DIMM status LEDs and DIMMs

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Ambient temperature limit LED

When this LED is lit in amber, it indicates that the ambient temperature is below 7°C (44.6°F) or over 40°C (104°F), which is not proper for server operation.

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Microprocessor status LEDs (also known as CPU status LEDs)

When a microprocessor status LED is lit in amber, it indicates that the corresponding microprocessor is overheated. For the microprocessor location(s), see “System board components” on page 41.

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Power supply error LEDs

When a power supply error LED is lit in amber, it indicates that there is a power supply problem. For the power supply location(s), see “Rear view of the server” on page 25. To identify the failing power supply, you also might check the status LED near the power cord connector on the redundant power supply. When the LED is lit in green, it indicates that the hot-swap redundant power supply is working correctly. When the LED is lit in amber, it indicates that the hot-swap redundant power supply is likely to fail or has failed.

24ThinkServer User Guide