Hardware Specifications and Configurations 1-39System Power ManagementSystem DMA SpecificationItem SpecificationPower management system ACPI 3.0-compliantPower global states G3 Mechanical Off - This off state is entered through amechanical means; no electrical current is running throughthe circuitry and it can be worked on without damaging thehardware or endangering service personnel. Except for thereal-time clock, power consumption is zero. G2/S5 Soft Off - OS initiated shutdown. The computerconsumes a minimal amount of power. No user mode orsystem mode code is run. It is not safe to disassemble themachine in this state. G1 Sleeping - The computer consumes a small amount ofpower, user mode threads are not being executed, and thesystem “appears” to be off. It is not safe to disassemble themachine in this state G0 Working - The computer dispatches user mode(application) threads and they execute. It is not safe todisassemble the machine in this state. S4 Non-Volatile Sleep - Also known as hibernation state. Aspecial global system state that allows system context to besaved and restored (relatively slowly) when power is lost tothe mainboard. It is not safe to disassemble the machine inthis state.Legacy Mode Power ManagementDMA0 FreeDMA1 FreeDMA2 FreeDMA3 FreeDMA4 Direct Memory Access ControllerDMA5 FreeDMA6 FreeDMA7 Free
