IBM 8500R - Netfinity - 8681, Руководство по техническому обслуживанию аппаратной части

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Hot-swap Power supplies
The server comes with three hot-swap power supplies.
The power supplies can provide up to 550 watts each at
110 V AC input power, and 750 watts each at 220 V AC
input power.
Danger
Overloading an electrical circuit breaker is potentially a
fire hazard and a shock hazard under certain
conditions. To avoid these hazards, adhere to the
instructions in the following statements.
1. If you are connecting to a 100–127 V AC power
source, connect each power cord to a separate
branch circuit.
2. If you are connecting to a 200–240 V AC power
source and the branch circuit breaker rating is:
a. 13 amps or less, connect each power cord
to a separate branch circuit.
b. 14 amps to 19 amps, do not connect more
than two power cords to the same branch
circuit.
c. 20 amps or greater, you may connect up to
three power cords to the same branch
circuit.
In addition to the power supplies, the server comes with
three 220 V AC power cords, and three 110 V AC power
cords (U.S. only). Be sure to select the appropriate power
cord voltage for the server environment. All three power
cords must have the same voltage.
If you connect the three:
Ÿ
220 V AC power cords to the power supplies, the
three power supplies support redundancy and
hot-swap capability.
Ÿ
110 V AC power cords to the power supplies, the
three power supplies do not support redundancy if the
system configuration exceeds any of these conditions:
– More than six processors
– More than 24 memory DIMMs
– More than eight PCI adapters
For servers with redundant power, the loss of a single
power supply will not affect the server operation. Replace
a power supply that has failed as soon as convenient to
help maintain the redundant power and cooling capability.
When a power supply has failed and the Power Good light
is on, the DC power LED on the power supply is off. See
“Power supply LED errors” on page 173 for more
information on the DC power LEDs. See “Hot-swap power
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