Contec SCP-8550-LLV, User Manual

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2. System Reference
SCP-8550-LLV
7
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 the SCP-8550-LLV Industrial CPU board, 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, the CPU board is designed to operate with at least a 200W 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