118Appendix A: Equipment Log and Power Consumption Worksheets

Current Usage

Calculating Power Usage

The total combined power consumption for your configuration must be less than 500W, with any combination of loads not to exceed maximum current on any one channel as defined in Power Usage Worksheet 1. The combined power consumption on 5 V and 3.3 V should not be more then 150W. Use the two worksheets in this section to calculate the total used by your configuration. For current and voltage requirements of add-in boards and peripherals, see your vendor documents.

Worksheet, Calculating DC Power Usage

1List the current for each board and device in the appropriate voltage level column.

2Add the current in each column, then go to the next worksheet.

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Acer R700 manual Current Usage, Calculating Power Usage, Worksheet, Calculating DC Power Usage