Fan Leds - Lenovo System x3750 M4 Installation And Service Manual

Table 23. Power-supply LEDs (continued)
Power-supply LEDs
AC DC Error
On Off
On On

Fan LEDs

The illustration in this section shows the hot-swap fan error LED location.
The following illustration shows the location of the fan LEDs.
Hot-swap fan
Hot-swap
fan error LED
PCIe riser-card LEDs
The illustrations in this section display the PCIe riser-card LED locations.
The following illustrations display the location of the LEDs on the two-slot and three-slot PCIe riser-cards.
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Lenovo System x3750 M4 Installation and Service Guide
Description
The system is on: Power
supply not fully seated,
faulty system board, or
faulty power supply.
On Faulty power supply
Faulty power supply
On
Fan latch
Action
1. Reseat the power supply.
2. Replace the power supply.
3. (Trained service technician
only) replace the system
board.
Replace the power supply.
Replace the power supply.
Notes
Typically indicates a
power supply is not
fully seated.