Dell GX280DT User Guide - Page 17

2. Click Hardware and click Device Manager. 3. In the Device Manager window, click the plus (+) sign next to the processor type. If Hyper- Threading is enabled, the processor is listed twice. You can enable or disable Hyper-Threading through system setup. 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. These periods of reduced power are called "sleep states": l Standby. In this sleep state, power is reduced or turned off for most components, including the cooling fans. However, system memory remains active. This state is not supported by Windows NT 4.0. NOTE: All components installed in the computer must support this feature and have the appropriate drivers loaded to enter standby. For more information, see the manufacturer's documentation for each component. l Hibernate. This sleep state reduces power consumption to a minimum by writing all data in system memory to a hard drive and then removing system power. Waking up from this state restarts the computer, and the memory contents are restored. Operation then resumes where the computer left off when it entered the hibernation state. This state is not supported by Windows NT 4.0. NOTE: All components installed in the computer must support this feature and have the appropriate drivers loaded to enter hibernation. For more information, see the manufacturer's documentation for each component. l Shutdown. This sleep state removes all power from the computer except a small auxiliary amount. As long as the computer remains connected to an electrical outlet, it can be automatically or remotely started. For example, the Auto Power On option in system setup allows the 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 states and the methods you can use to wake the computer from each state. Sleep State Wake-Up Methods (Windows 2000 and XP) Standby l Press the power button l Auto power on l Move or click the mouse l Type on the keyboard l USB device activity l Power management event Hibernate l Press the power button l Auto power on l Power management event Shutdown l Press the power button l Auto power on l Power management event NOTE: For more information on power management, see your operating system documentation. Back to Contents Page