Compaq dc7100 HP Compaq dc71xx and dx61xx Series Business Desktop Computers Te - Page 139
Power Management, Table 7-5., System Power States, Power, State, System Condition
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Power and Signal Distribution 7.2.3 Power Management These systems include power management functions designed to conserve energy. These functions are provided by a combination of hardware, firmware (BIOS) and software. The system provides the following power management features: ■ ACPI v1.0b compliant (ACPI modes C1, C2, S1, and S3, ) ■ APM 1.2 compliant ■ U.S. EPA Energy Star compliant Table 7-5 shows the comparison in power states. Table 7-5. System Power States Power State System Condition G0, S0, D0 System fully on. OS and application is running, all components. G1, S1, C1, D1 System on, CPU is executing and data is held in memory. Some peripheral subsystems may be on low power. Monitor is blanked. G1, S2/3, C2, System on, CPU not executing, D2 (Standby/or cache data lost. Memory is suspend) holding data, display and I/O subsystems on low power. G1, S4, D3 (Hibernation) System off. CPU, memory, and most subsystems shut down. Memory image saved to disk for recall on power up. G2, S5, D3cold System off. All components either completely shut down or receiving minimum power to perform system wake-up. G3 System off (mechanical). No power to any internal components except RTC circuit. [1] Power Consumption Maximum Low Low Low Minimum None Transition To S0 by [2] N/A < 2 sec after keyboard or pointing device action < 5 sec. after keyboard, pointing device, or power button action