HP 8000 manual System Power States, State System Condition, Power Transition OS Restart

Power and Signal Distribution

Table 7-6.

System Power States

Power		Power	Transition	OS Restart
State	System Condition	Consumption	To S0 by [2]	Required
G0, S0, C0, D0 System fully on. OS and		Maximum	N/A	No
	application is running, all
	components.
G1, S1, C1, D1	System on, CPU is executing and	Low	< 2 sec after	No
	data is held in memory. Some		keyboard or
	peripheral subsystems may be on		pointing device
	low power. Monitor is blanked.		action
G1, S2/3, C2,	System on, CPU not executing,	Low	< 5 sec. after	No
D2 (Standby/or	cache data lost. Memory is		keyboard, pointing
suspend)	holding data, display and I/O		device, or power
	subsystems on low power.		button action
G1, S4, D3	System off. CPU, memory, and	Low	<25 sec. after	Yes
(Hibernation)	most subsystems shut down.		power button
	Memory image saved to disk for		action
	recall on power up.
G2, S5, D3cold	System off. All components either	Minimum	<35 sec. after	Yes
	completely shut down or receiving		power button
	minimum power to perform system		action
	wake-up. PCI and PCIe 3.3V slot
	power (for wake-up events) can be
	selectively disabled in BIOS
	configuration.
G3	System off (mechanical). No power	None	—	—
	to any internal components except
	RTC circuit. [1]

NOTES:

Gn = Global state.

Sn = Sleep state.

Cn = ACPI state.

Dn = PCI state.

[1]Power cord is disconnected for this condition.

[2]Actual transition time dependent on OS and/or application software.

Technical Reference Guide www.hp.com 7-7