HP Brio ba200 new power management for hp desktop pcs - Page 8
RPO 'out of the box, For More Information - specifications
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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 dropdown 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. 8 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. For More Information • The ACPI web site ZZZWHOHSRUWFRPaDFSL • The ACPI Specification ZZZWHOHSRUWFRPaDFSLVSHFKWP • Microsoft's web site on power management, ACPI, APM, and Windows operating systems ZZZPLFURVRIWFRPKZGHYRQQRZ • Microsoft's hardware white paper "Windows Power Management Configuration Tools Design Notes and Reference" is available at ZZZPLFURVRIWFRPKZGHYGHVLQLWZSPWRROVKWP • Intel's web site on 'Instantly Available' and ACPI technology GHYHORSHULQWHOFRPWHFKQRORJ\LDSF. • HP's white paper "HP Windows 2000" discusses the support offered for Windows 2000 (including its power management features) on HP Desktop PCs. It is available at ZZZKSFRPGHVNWRSVYHFWUDOLEUDU\KWPO