Product guide

126
Chapter Six Technical Reference
Calculating DC Power Usage-
Worksheet
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.
Current (Maximum) at Volage Level
Device +3.3V +5V -5V +12V -12V
Server board 1.0A 8.0A 0.1A 1.1A 0.4A
Primary Processor
Secondary Processor
Terminator card, 1.6A
if no second processor
Memory (four 128 MB DIMMs) 1.8A 0.3A
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 Floppy Disk Drive