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Intel® Server Chassis SC5400 User’s Guide 63
3 Technical Reference
Power Supply Specifications
670-W Single Power Supply Input Voltages
• 100-127V at 50/60 Hz; 12A max.
• 200-240V at 50/60 Hz; 7A max.
670-W Single Power Supply Output Voltages
The following table lists the total wattage available from the power subsystem for each
voltage. Ensure that your loads do not exceed the combined total wattage of 670 Watts.
For information about calculating the power usage for your configuration, see
“Calculating Power Usage” on page 65.
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.
830-W Single Power Input Voltages
• 100-127 V∼ at 50/60 Hz; 14 A max.
• 200-240 V∼ at 50/60 Hz; 8 A max.
Table 6. 670-W Power Supply Output Capability
Voltage Maximum Current
+3.3 V 24 A
+5.0 V 30 A
+5 V Standby 3 A
+12.0 48 A
-12.0 V 0.5 A