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Power Supply Intel® Server Platform SR6850HW4 TPS
Revision 1.0
Intel order number D23151-001
56
5.3.5 Auto Restart
Although the power supply may power off under the conditions mentioned in Sections 5.3.3 and
5.3.4 it is capable of restarting, either automatically or under program control after the
disturbance. In addition, the power supply will not be in a latched state such that any of the
operator buttons/buttons do not operate correctly after the disturbance. At no time will the AC
power cord have to be removed to clear an error condition.
Auto restart conditions are tested from -40% to -100% AC under-voltage conditions for time
intervals ranging from 25ms to 2sec. For each time interval, all of the under-voltage conditions
listed below will be tested. These tests are performed at both the lowest and highest nominal
operating voltages of the power supply.
Time intervals: 25ms, 40ms, 60ms, 90ms, 130ms, 200ms, 280ms, 400ms, 600ms, 900ms,
1.3sec, and 2.0sec
Under-voltage deviation from nominal AC voltage: -40%, -50%, -60%, -70%, -80%, -90%, -
100%
5.3.6 Power Factor Correction (PFC)
The Power Factor Correction (PFC) is 0.97, or greater, for all specified AC input voltages with
output loads greater than 90%.
The PFC is 0.75, or greater, for all specified AC input voltages with output loads greater than
50%.
5.3.7 AC Input Connector
The AC input receptacle is an IEC-320 16A rated for 250VAC minimum.
5.4 DC Output Requirements
The DC output voltages will remain within the regulation ranges shown in the Table 31 when
measured at the load end of the connector.
Table 31. DC Output Voltage Regulation Limits
Output Level Minimum (V) Nominal (V) Maximum (V)
+12V 11.64 12.00 12.60
+3.3V
stby
3.17 3.30 3.47