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112 Equipment Log and Power Consumption Worksheets
Worksheet, Calculating DC Power Usage
1. List the current for each board and device in the appropriate voltage level column.
2. Add the currents in each column. Then go to the next worksheet.
Table 14. Power Usage Worksheet 1
Current (maximum) at voltage level:
Device +3.3 V +5 V –5 V +12 V –12 V
Server board 1.0 A 8.0 A 0.1 A 1.1 A 0.4 A
Primary Processor
Secondary Processor (if present)
Terminator card, if no second
processor
1.6 A
Memory (four 128 MB DIMMs) 1.8 A 0.3 A
PCI slot 1
PCI slot 2
PCI slot 3
PCI slot 4
PCI slot 5
PCI slot 6
ISA slot 1
1
st
3.5-inch hard disk drive
2
nd
3.5-inch hard disk drive
3
rd
3.5-inch hard disk drive
4
th
3.5-inch hard disk drive
5
th
3.5-inch hard disk drive
6
th
3.5-inch hard disk drive
7
th
3.5-inch hard disk drive
3.5-inch diskette drive
CD-ROM drive
Cooling fan 1
Cooling fan 1
Total Current