SPSH4 Server SystemTechnical Product Specification
Revision 1.11
Intel reference number 10736
15
4. Power supply Subsystem
This section defines the features and functionality of the SSI compliant 600 watt power supply,
a universal input switching power supply. The power supplies are located in the power supply
bay mounted near the rear of the chassis. The system may be configured either with two 600 W
power supplies in a non-redundant configuration, or three 600 W power supplies for a
redundant power (2 + 1) configuration. Each power supply requires an individual power cord.
When the system is configured with three power supplies the following features are supported:
•
The user can replace a failed power supply without interrupting system functionality under
any loading condition.
•
AC power to one of the power cords can be interrupted without loss of functionality.
Power from the power supply subsystem is carried to internal system boards and peripheral
devices via discrete cables. Two 600 watt power supplies are capable of handling the worst
case power requirements for a fully configured SPSH4 system. This includes four 75 watt Intel
Xeon – MP processors, 24 GB of memory and ten hard drives at 20 watts per drive. Figure 8
shows the SPSH4 power supply.
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