Table 23. Power-supply LEDs (continued)
Power-supply LEDs
AC
DC
Error
Description
Action
Notes
The system is on: Power
supply not fully seated,
faulty system board, or
faulty power supply.
1. Reseat the power supply.
2. Replace the power supply.
3. (Trained service technician
only) replace the system
board.
Typically indicates a
power supply is not
fully seated.
On
Off
On
Faulty power supply
Replace the power supply.
On
On
On
Faulty power supply
Replace the power supply.
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.
0000000
0000000
0000000
0000000
0000000
0000000
000000
000000
000000
000000
000000
000000
000000
000000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
Hot-swap
fan error LED
Hot-swap fan
Fan latch
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
Summary of Contents for System x3750 M4
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