Do I need a special power supply to support Instantly Available PC (Suspend-to-RAM)? How much standby current does the power supply need to support it?
A special power supply is not needed to support Instantly Available PC. However, the power supply must provide enough standby current (+5VSB) to support the needs of all wake-capable devices in the system. The more wake-capable devices in the system, the greater the standby current required from the power supply. Intel recommends starting with a power supply capable of providing at least 1.5 A of standby current. To be sure, total the amount of standby current required by the various components that can wake the system from the STR state. In your calculations, include the components on the Desktop Board D815EEA2 and on the add-in cards. Make sure the power supply provides at least that amount of standby current. Refer to the Technical Product Specification for information on how much standby current the on-board components of the Desktop Board D815EEA2 require.
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