Power supply units | System expansions |
8.3Power supply units
The server are delivered with three power supply units. The power supply units are externally accessible at the rear side of the server (see figure 22 on page 94).
When the yellow power supply failure LED on the front panel turns on, you can determine which power supply unit is defective by checking the three status LEDs of each supply unit (figure 22 on page 94 and/or table 25 on page 95):
1.Power supply unit ready
2.Power supply unit failure
3.The power supply unit is about to fail in the near future because the fan is performing poorly. The power supply unit should be exchanged as soon as possible.
Figure 22: Status indicators for the power supply units
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