Supermicro 8052-6, Руководство пользователя

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6-12
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UPER
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ERVER 8052-8/8052-6 Manual
6-5 Power Supply Units
The SC850P4 has a set of 700W Triple Redundant Power Supply (PWS 039 p/
n: YH-5711C) which consists of three individual Power Supply Modules (PWS
040M p/n: YM-6361A). All three units are active to provide a continuous 700 watts
of power to the system. If any one fails, the other two units will pick up the load
to continue operations. All three are hot-swap units, allowing you to replace
faulty units without powering down the system. These power supply units also
have an auto-switching capability, which enables them to automatically sense
and operate at either 110 or 220 volt inputs. When replacing failed units, it is
recommended that you use the exact same model. The power supply units must
be P4-ready with an "Option B: +12V" and provide 24-pin, 8-pin and 4-pin con-
nectors.
Power Supply Failure
If any one of the three power units fails, the remaining two units will automatically
assume the system load to continue system operations without interruption. An
audible alarm will notify you of a power unit failure, which you can disable by
pressing the alarm switch on the front control panel. The PWR Fail LED will also
illuminate and remain on until the failed unit has been replaced.
Replacing Power Units
1. Identifying the failed power unit:
Inspect the power units mounted in the rear of the chassis. The unit with
the illuminated amber LED indicates the failed unit and should be replaced
as soon as possible.
2. Removing a hot-plug power unit:
You do not need to power down the system to replace a failed power
unit. First, unplug the power cord from the failed unit only . Remove
the screws that secure the unit to the chassis and then grasp the
handles and pull the unit completely out.
3. Installing a new hot-plug power unit:
Replace the failed unit with another unit of the same type and wattage. It
is highly recommended that all three power units are exactly the same
(see above). Gently but firmly push the new unit all the way into the
open bay. Secure it to the chassis with the screws provided. After
connecting the power cable, the green LED should illuminate to show that
the unit is powered up and operational.