Install Third Power Supply - HP D7171A - NetServer - LPr Upgrade Manual

Chapter 4
Figure 4-10. Install New System Board in Rack Orientation

Install Third Power Supply

The HP NetServer LH 6000/6000r requires three power supplies. The third power
supply comes as part of the Power Supply Upgrade Kit.
NOTE
The Power Supply Upgrade Kit provides the third power
supply, but does not provide redundancy.
If you want a redundant power supply, you must order a second
Power Supply Upgrade Kit. You can install a redundant power
supply fan module when you install a redundant (fourth) power
supply.
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Installing LH 6000/6000r Components