User`s guide

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2: System Setup
Power Requirements
Power requirements for the Origin 350 base platform supporting the SGI Media Server
are shown in Table 2-1. It includes the power requirements for the 2U-high PCI-X
expansion module also.
Note: A power redundancy option is available.
Power bay requirements for the 4U-high PCI expansion module are shown in Table 2-2.
Table 2-1 Power Requirements for the SGI Media Server Base Unit
Specification Value
Input volts 110 or 220 volts, 20 amp universal auto-switching power supply
Power bay output 640 watts DC (3.3/5/12v)
Cooling N+1 redundant cooling
Table 2-2 Power Requirements for the PCI Expansion Module Power Bay
Specification Value
Input volts 110 or 220 volts. The power bays are not universal and do not autoswitch.
The default power bay has two offline switcher (OLS) power supplies.
They should be in slots 4 and 5 in the power bay. One power bay can drive
six I/O bricks with power. Up to six OLSs can be installed in one power
bay. A power bay supplies AC voltage and monitors and controls the
peripheral I/O brick power units.
Power output Each distributed power supply inputs single-phase AC power and can
output a maximum of 950 watts at 48 VDC. The outputs are bussed
together to provide a maximum of 3,800 watts of available peak power in
an N+1 redundant configuration. This means there is one additional 950
watt power supply for reserve. The reserve power supply is ready-standby
and will power the system in case of failure.
Cooling N+1 redundant cooling units. A minimum of two power supplies must be
present.