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4. Technical Reference
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The 300 watt power supply, designed to minimize EMI and RFI, provides sufficient power for a maximum
configuration of the server. The input voltage ranges are:
•
100-120
V
∼
at 50/60 Hz; 4.6 A maximum current
•
200-240
V
∼
at 50/60 Hz; 2.3 A maximum current
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The table below lists the total watts available for each voltage. Adjust your loads so that the combined
total wattage for your system configuration is less than 300 watts.
For information about calculating the power usage for your system configuration, see the calculation
worksheets.
Table 2. Power Supply Output Voltages
Voltage
Maximum
Continuous
Current
Peak
Current
Watts
+3.3 V
16.0 A
52.8 W
+5.0 V
26.0 A
130.0 W
–5.0 V
0.25 A
1.25 W
+5V Standby
0.75 A
3.75 W
+12.0 V
10.0 A
13.0 A
120.0 W
–12.0 V
0.5 A
6.0 W
✏
NOTE
As an overall current usage limitation on the power supply, do NOT exceed
a combined power output of 167 watts for the +5 V and +3.3 V outputs.
The ISA slots on the server board are rated at a maximum of 4.5 amperes per slot. The ISA specification
recommends supporting an average of 2.0 amperes per slot. The average current usage should not
exceed 3.0 amperes per slot; that is 15 watts.
The PCI slots on the server board are rated at a maximum of 5 amperes per slot. The maximum power
allowed for each slot is 20 Watts a +5 volts. The average current usage per slot should not exceed 3.0
amperes per slot; that is, 15 watts.
Summary of Contents for NetFRAME 2100 Series
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