Calculating Power Consumption; Calculating Dc Power Usage - Acer Altos G900 User Manual

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Calculating power consumption

The total combined wattage for the system configuration must be less
than the output of your power supplies. Use the two worksheets in
this section to calculate the power used by your system. For current
and voltage requirements of add-in boards and peripherals, refer to
the vendor documents.

Calculating DC power usage

1 List the current for each board and device in the appropriate
voltage level column in the Power Usage Worksheet 1.
2 Add the currents in each column then go to the next worksheet.
Device
Server board
set
Primary
processor
Second
processor
Third
processor
Fourth
processor
Memory
PCI slot 1
PCI slot 2
PCI slot 3
PCI slot 4
Appendix C: Equipment log and configuration worksheets
Power Usage Worksheet 1
Current (maximum) voltage level
+3.3 V +5 V
5 V
+12 V
Standby
-12 V