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4 Technical Reference
Power Supply Specifications
Input Voltages
300 watt power supply
•
100-120 V∼ at 50/60 Hz; 4.6 A
•
200-240 V∼ at 50/60 Hz; 2.3 A
350 watt 1+1 power supply
•
100-120 V∼ at 50/60 Hz; 6 A
•
200-240 V∼ at 50/60 Hz; 3 A
Output Voltages
300 watt power supply
The table below 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
300 watts. For information about calculating the power usage for your configuration, see page 65.
Table 2.
Power Supply System Output Capability
Voltage
+3.3 V
+5.0 V
-5 V
+5V Standby
+12.0 V
–12.0 V
CAUTION
Do not exceed a combined power output of 167 watts for the +5 V and +3.3 V
outputs. Exceeding a combined 167 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 25W for any one slot. The
average current usage per slot should not exceed 13 watts.
Maximum Current
16 A
26 A
.25 A
800 mA
10 A sustained
13 A/12 sec peak
.5 A
53
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