Power Sequencing For Unmanaged Systems; Power Consumption - Kontron AM4024 User Manual

4.2.3 Power Sequencing for Unmanaged Systems

If the AM4024(E) is installed in an unmanaged system, the module management power must be stable and in
regulation before the payload power starts to ramp up.
4 . 3 Powe r C o n s u mp t i o n
The goal of this description is to provide a method to calculate the power consumption for the
AM4024(E) baseboard and for additional configurations. The processor and the memory dissipate the
majority of the thermal power.
The power consumption measurements were carried out using the following testing parameters:
» Ethernet ports connected
» Mini DisplayPort connected
» Front mini USB 2.0 port connected
» 8 GB DDR3 SDRAM in dual-channel mode
» +12V main supply voltage
» 2.5 m/s airflow
The operating systems used were uEFI Shell and Windows® 7, 64-bit. All measurements were conducted
at an ambient temperature of 25 °C. The power consumption values indicated in the tables below can
vary depending on the ambient temperature. This can result in deviations of the power consumption
values of up to 15%.
The following AMC fabric interfaces were active during the measurements:
» AMC Common Options Region, ports 0-1
» AMC Fat Pipes Region, ports 4-7
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