Power Management - Kontron COMh-caRP User Manual

incorrectly or even suffer a reduction of MTBF. The minimum OFF time depends on the
implemented PSU model and other electrical factors and must be measured individually
for each case.
Power Supply Voltage Rise Time
The input voltage rise time is 0.1 ms to 20 ms from input voltage ≤10% to nominal input voltage. To
comply with the ATX specification there must be a smooth and continuous ramp of each DC input
voltage from 10 % to 90 % of the DC input voltage final set point.
Power Supply Voltage Ripple
The maximum power supply voltage ripple and noise is 100 mV peak-to-peak measured over a
frequency bandwidth of 0 MHz to 20 MHz. The voltage ripple, must not cause the input voltage range
to be exceeded.
Power Supply Inrush Current
The maximum inrush current at 5 V standby is 2 A. From states G3 (module is mechanically
completely off, with no power consumption) or S5 (module appears to be completely off) to state S0
(module is fully usable) the maximum inrush current meets the SFX Design Guide.

3.6.2 Power Management

The Advanced Configuration and Power Interface (ACPI) 6.0 hardware specification supports features
such as power button and suspend states. The power management options are available within the
BIOS set up menu: Advanced>ACPI Settings>
Suspend States
If power is removed, 5V can be applied to the V_5V_SBY pins to support the ACPI suspend-states:
Suspend to RAM (S3)
Suspend to Disk (S4)
Soft-off (S5)
If power is removed, the wake-up event (S0) requires 12V VCC to power on the module
for normal operation.
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