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60 Intel Astor II Server Chassis Subassembly Product Guide
Worksheet, Total Combined Power Used by the System
1. From the previous worksheet, enter the total current for each column.
2. Multiply the voltage by the total current to get the total wattage for each voltage level.
3. Add the total wattage for each voltage level to arrive at a total combined power usage on the
power supply.
Table 11. Power Usage Worksheet 2
Voltage level and total current
(V X A = W)
Total Watts
for each voltage level
(+3.3 V) X (______ A) ________ W
(+5 V) X (______ A) ________ W
( 5 V) X (______ A) ________ W
(+12 V) X (______ A) ________ W
(–12 V) X (______ A) ________ W
Total Combined Wattage ________ W
CAUTION
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.