HP Vectra VE 5/xx new power management for hp desktop pcs - Page 5

To set a device input to wake-up the PC under Windows 2000, from your desktop right-click on the My computer icon. Select Properties >Hardware > Device Manager. Click on the device to select it (for instance Keyboard) then right-click on the highlighted device and select Properties. Go to the Power Management tab and toggle the option "Allow this device to bring the computer out of Standby'. Check that the BIOS Power Management options are configured correctly to enable ACPI with OS control. The available BIOS options depend on the version of BIOS in your PC (see tables on page 6). It is worthwhile to view the BIOS Setup to confirm which options are available and active, particularly if you have upgraded to Windows 2000 from an earlier OS. Windows 98 Windows 98 Second Edition also implements ACPI power management, although the features are not as rich as Windows 2000. In particular, there is no Hibernate mode in Windows 98. Windows 98 First Release also supports ACPI power management. However, most of the HP PCs shipped with Windows 98 First Release have an APM BIOS by default. If you use Windows 98 First Release on these systems, HP recommends that you use APM power management. Windows 95 Windows 95 supports APM but not ACPI. If you use Windows 95, APM power management is recommended. Windows NT 4 Windows NT 4 does not include any built-in support for power management. However, HP provides Soft PowerDown, a Windows NT utility offering a useful power management feature. For More MS Windows Information For more information about Windows operating systems, refer to Microsoft's web sites: ZZZPLFURVRIWFRPZLQGRZV Linux APM is supported. Recent Linux kernels support ACPI. LINUX v2.4 with ACPI will be available early in 2001. For full information see LINUX documentation for your version and/or FAQs on line (many sites). Implications and Recommendations for the HP PC User From the user's point of view, many of the features provided by APM and ACPI are similar but they do not always work in the same way. Standby Modes S1, S2, S3 Operating Systems may refer to the modes S1, S2 and S3 as 'Standby' without always making clear the differences between these three modes. When the user selects a Standby option in the OS, the software will decide which of these modes is compatible with the software/hardware environment and also checks the wake-up capabilities of the hardware present, as some hardware can only be woken from mode S1. The sleep-mode compatible with these parameters and also providing the greatest power saving (deepest sleep) is selected. This selection is necessary as some hardware cards do not support S3, which is a relatively new standard. When not sure if a PC is in mode S1 or Suspend to RAM mode S3, test by opening the CD tray using the pushbutton control. If the tray opens, this indicates that the PC is in mode S1. hp moves forward with acpi HP is fully committed to ACPI and its advantages. All new HP PCs support most ACPI features and ship with Windows 98 Second Edition or Windows 2000, Microsoft's latest operating systems which support ACPI. In fact, HP has been committed to ACPI for some time. Most HP PCs shipped in the last few years have both APM and ACPI implemented in the BIOS, allowing you to choose the power management scheme to best fit your needs. So you can even benefit from many of the advantages of ACPI when you update to Windows 98 SE or Windows 2000. To learn if your HP PC supports Windows 2000, consult the white paper "HP Windows 2000", available at ZZZKSFRPGHVNWRSVZLQGRZV 5