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64 Intel® Server Chassis SC5400 User’s Guide
830-W Single Power Supply Output Voltages
The following table lists the total wattage available from the power subsystem for each
voltage. If you configure your system heavily, ensure that your loads do not exceed the
combined total wattage of 800 Watts. For information about calculating the power usage
for your configuration, see “Calculating Power Usage” on page 65.
Table 7. 830-W Power Supply Output Capability
Warning: Do not exceed a combined power output of 170 Watts for the +5 V and +3.3 V outputs.
Exceeding a combined 170 Watts will overload the power subsystem and may cause the
power supplies to overheat and malfunction.
The expansion slots on the server board are rated for no more than 25 Watts for any one
slot. The average current usage per slot should not exceed 13 Watts.
System Environmental Specifications
Voltage Maximum Current
+3.3 V 25 A
+5.0 V 33 A
+5 V Standby 3 A
+12.0 51 A
-12.0 V 0.5 A
Table 8. Environmental Specifications
Temperature
Non-operating: -40 ° to 70 °C.
Operating: 10 ° to 35 °C; derated 0.5 °C for every 1000 ft. (305 m) to
a maximum of 10,000 ft.
Humidity
Non-operating: 90% relative humidity (non-condensing) at 30 °C.
Shock
Operating: 2.0 g, 11 msec, 1/2 sine
Packaged: Operational after an 18" free fall.
Acoustic noise
UP, DP, BRP configurations - 5.5 BA LWA idle; 6.0 BA LWA typical
operating
Electrostatic discharge
(ESD)
Tested to 15 kilovolts (kV); no component damage.