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New power management on hp pcs

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Solution manual (104 pages)

User manual (96 pages)

Manual (28 pages)

Table of Contents

Enlarged version

There is no way of telling if the PC is in Hibernate mode.

The best way to ensure that the PC is not in Hibernate

mode is to restart the PC then shut it down. To do this,

select Shut Down from the Start menu then under the

heading µWhat do you want the computer to

do?¶ select the option ' Shut Down¶ from the drop-

down list.

If the Shut Down Option Has Been

Removed

If the 'Shut Down' has been removed from the list of

options, the following procedure is recommended to

ensure the PC is not serviced while in S4 mode.

Procedure:

1 Restart the PC by selecting Start>Shut Down and then

choosing 'Restart' from the drop-down menu.

2 When the PC has fully shut down and is just beginning

to restart (you will see the initial Brio, Vectra, Kayak or

HP logo), press the power switch to shut down the PC.

3 Remove the power cable to isolate the PC.

Alternatively, you can log on to the PC as Administrator

and then activate the Shut Down option in

Start>Settings>Control Panel>Power Options. . . . The choice

'Shut Down' will then be available in the dropdown

menu headed 'What do you want the computer

to do?' . Use this to choice to shut down the computer

and then remove the power cable.

Once servicing or upgrading has been completed, the PC

will perform the full startup procedure, taking into account

any changes to the PCs configuration.

Note that if the PC is serviced (power off) while in the

Hibernate mode, the power up sequence may easily

cause an OS crash with unpredictable and undesirable

effects.

This is particularly the case when the hardware

configuration has been altered in the serviced PC.

Hibernate will assume there has been no power

interruption and will attempt to reload the previous OS

state from the hard disk without verifying the state of any

hardware present (which may require initialization after a

power out).

The full boot from S5 checks all hardware and carries out

all initialization required.

Power Loss in the Different Power

Management States

If the PC looses power in S1 or S3 Standby mode

(through a power failure in the building or by pulling out

the PC's power cord), you will loose any unsaved data. In

this case it is just as if the PC lost power while it was on.

If the PC looses power in Hibernate (S4) or soft off (S5)

mode however, there will be no data loss. In fact, it is as

if the PC was already powered off.

RPO 'out of the box'

New HP PC are delivered preloaded and ready to

function 'out of the box' as soon as they are powered up.

However, the Remote Power On (RPO) function requires

a continued power supply to operate correctly. When

your HP PC comes 'out of the box' it is in a state

equivalent to a power interruption.

To set up RPO, you should connect up all peripherals

and switch on the PC. Enable the Hibernate option then

put the PC into Hibernation mode by selecting

Start>Shutdown>Hibernation. The computer is now

able to respond to any RPO request.

From the box:

1 Connect all PC peripherals and power cable

2 Press the Power Switch to power-up the PC

3 After the OS is running, enable Hibernate in

Start>Settings>Control Panel>Power Options.

4 Put the computer into the Hibernate mode by selecting

Start>Shut Down>Hibernate.

Alternatively, If your PC fully supports RPO from S5 and

you have enabled the option in the BIOS, you can put

the PC into Hibernate mode simply by pressing the

Power Switch a second time.

The PC is now in Hibernate mode and 'set' for RPO.

Note: it is possible that at the next use of the PC

following this initialization a glitch will be noticed (once

only) when the PC restarts. This is normal, and is dealt

with by the PC during the course of the restart. Your HP

PC is now operative.