Dual-State Power Button; Changing The Power Button Configuration (Windows Only) - HP Z1 Maintenance And Service Manual

Dual-state power button

With ACPI enabled, the power button can function as an on/off switch or as a button. This feature
does not completely turn off power, but instead causes the computer to enter a low-power standby
state. This enables you to go to standby without closing applications, and to return to the same
operational state without any data loss.

Changing the power button configuration (Windows only)

Windows 7
1. Select Start, and then select Control Panel > System and Security > Power Options.
2. In the left pane, click Choose what the power buttons do.
3. Select the desired options.
If you choose Sleep or Hibernate, you can press the power button to initiate standby, and then press
it again to exit standby and return to your work. To completely turn off the workstation, select Start >
Shut Down.
CAUTION:
unless the system is unresponsive.
NOTE: If the computer is unresponsive, press and hold the power button for four seconds to
completely turn off power to the computer.
Windows 8
1. Point to the upper-right or lower-right corner of the Start screen to display the charms.
2. In the Search field, type control.
3. On the left side of the screen select Control Panel, and then select System and Security >
Power Options.
4. In Power Option Properties, select Choose What the Power Button Does.
5. Select the desired options.
38 Chapter 2 System management
To reduce the risk of data loss, do not use the power button to turn off the computer