Technical Reference
2.11 Electrical Considerations
2.11.1Add-in Board Considerations
The board is designed to provide 2 A (average) of +5 V current for an
2.11.2Power Consumption
Table 35 lists voltage and current specifications for a computer that contains the board and the following:
∙550E MHz Intel Pentium III processor with a 256 KB cache
∙256 MB SDRAM
∙6.2 GB IDE hard disk drive
∙Toshiba Mobile
This information is provided only as a guide for calculating approximate power usage with additional resources added.
Values for the Windows† 98 desktop mode are measured at 640 x 480 x 256 colors and 60 Hz refresh rate. AC watts are measured with a typical 145 W power supply, nominal input voltage and frequency, with true RMS wattmeter at the line input.
Table 35. Power Usage
|
|
|
| DC Amps at: |
|
| |
Mode | AC Watts | +3.3 V | +5 V |
| +12 V | +5 VSB | |
Windows 98 ACPI S0 | 46 W | 1.90 A | 2.23 A |
| 0.2 A | 0.17 A | |
|
|
|
|
|
|
|
|
Windows 98 ACPI S1 | 22 W | 1.37 A | 0.38 A |
| 0.2 A | 0.143 A | |
|
|
|
|
|
|
|
|
Windows 98 ACPI S3 | 1 W | 0.0 A | 0.0 A |
| 0.0 A | 0.0 A | 0.13 A |
|
|
|
|
|
|
|
|
Windows 98 ACPI S5 | 1 W | 0.0 A | 0.0 A |
| 0.0 A | 0.0 A | 0.11 A |
|
|
|
|
|
|
|
|
53