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Maintenance & Service Guide
Presario 5600 Series Personal Computers

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Power Management Features

Compaq Presario 5600 Series Personal Computers support the following power management capabilities.

The following is a list of the power management features:

  • Power Status Lights. You can quickly tell the sleep condition of the system by glancing at the Power Status Lights.
  • Automatic standby. In Windows 98 there are different Power Schemes under which the system goes into Sleep mode automatically when it times out. The optional settings for Windows 98 are Home/Office Desk, Portable/Laptop and Always On. The system supports different levels of power management for varying patterns of computer usage.
  • Default and Adjustable timeout settings. The default setting for Sleep timeout is 30 minutes. The Sleep timeout value can be set in the Control Panel by clicking the Power Management icon. At the Properties screen, click System Standby, Turn off Monitor, and Turn off Hard Disk to set the length of time before the system goes to sleep.
  • Manual standby. To manually put your computer into sleep mode in the Windows 98 desktop, press the Instant On button (on the CPU) or the Sleep button (on the keyboard). The power status light on the CPU will light to show that Sleep mode is activated.
  • Other manual standby options. Another way to put your computer into sleep mode manually under Windows 98 is to select Start, then Shutdown. Select Standby from the list of choices to put the system into Sleep mode. The system can then be turned off or left in Sleep. When the Sleep button is pressed, the system reboots to the Windows 98 Desktop.
  • No audio CD interruption. When an audio CD is playing, the system will time out and enter Sleep after 30 minutes or the set time, but audio play will not be interrupted. If either the Instant On or the Sleep button is pressed, CD play is suspended and the unit enters Sleep. CD play resumes on the next track when the system wakes.
  • Synchronized software and hardware volume control buttons.

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States of Power Management

Power management can be defined by three distinct power states in which the computer operates: On, Off, and Sleep. The following table describes the power states and lists the power consumption of each state:

Power Management States

Energy State Description Power Consumption
On Power is available to the system and the On/Off switch in the back is in the ON position. The power status light is green. 64 Watts Avg., 110 Watts Max
Off Power is not available to the system and the On/Off switch is in the OFF position. The power status light is not lit. 0 Watts
Sleep Power is available to the system, the On/Off switch in the back is in the ON position and the computer is in a low power/standby mode. The power status light is amber. 23 Watts

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