Power Management - Dell OptiPlex GX745 User'smanual

Power Management
Your computer can be set to use less power when you are not working. You control the power usage through the operating system installed on your computer
and certain option settings in system setup (see
NOTE: If your system has a card in the PCI Express x16 slot and you add a peripheral that does not support suspend (S3), you system will not be able
to enter stand-by.
NOTE: All components installed in the computer must support the hibernate and/or standby mode feature(s) and have the appropriate drivers loaded to
enter either of these sleep modes. For more information, see the manufacturer's documentation for each component.
Standby. In this sleep mode, power is reduced or turned off for most components, including the cooling fans. However, system memory remains active.
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Hibernate. This sleep mode reduces power consumption to a minimum by writing all data in system memory to a hard drive and then removing system
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power. Waking up from this mode restarts the computer, and the memory contents are restored. Operation then resumes where the computer left off
when it entered the hibernation mode.
Shutdown. This sleep mode removes all power from the computer except a small auxiliary amount. As long as the computer remains connected to an
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electrical outlet, it can be automatically or remotely started. For example, the Auto Power On option in system setup (see
computer to automatically start at a specified time. Also, your network administrator can remotely start your computer using a power management
event such as remote wake up.
The following table lists the sleep modes and the methods you can use to wake the computer from each mode.
Sleep Mode Wake-Up Methods (Windows XP)
Standby Press the power button
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Auto power on
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Move or click the mouse
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Type on the keyboard
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USB device activity
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Power management event
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Hibernate Press the power button
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Auto power on
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Power management event
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Shutdown Press the power button
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Auto power on
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Power management event
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NOTE: For more information on power management, see your operating system documentation.
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System Setup). These periods of reduced power are called "sleep modes."
System Setup) allows the