Power Management Features; Power Requirements; Power Consumption - Contec SPI-8550-LLVAS User Manual

Power Management Features

- Support both ACPI (Advanced Configuration and Power Interface) and legacy (APM) power
management.
- ACPI v2.0 compliant
- APM v1.2 compliant
- PCI bus clock run, Power Management Enable (PME) control, all with hardware automatic wake-up
- Multiple suspend power plane controls and suspend status indicators
- Normal, doze, sleep, suspend and conserve modes
- Global and local device power control

Power Requirements

Your system requires a clean, steady power source for reliable performance of the high frequency CPU
on this product, the quality of the power supply is even more important. For the best performance makes
sure your power supply provides a range of 4.75 volts minimum to 5.25 volts maximum DC power
source.

Power Consumption

For typical configurations, this product is designed to operate with at least a 200 W power supply. A
higher-wattage power supply should be used for heavily-loaded configurations. The power supply must
meet the following requirements:
- Rise time for power supply: 2 ms - 20 ms
- Minimum delay for reset to Power Good: 100 ms
- Minimum Power down warning: 1 ms
The following table lists the power supply's tolerances for DC voltages:
Table 2.2. DC Voltage Tolerances
DC Voltage Tolerance
+5V ± 5 %
+5VSB (standby) ± 5 %
+12V ± 5 %
* +12V: Only for FAN Use
SPI-8550-LLVAS
2. System Reference
9