Dell OptiPlex GX1 Reference And Installation Manual page 30

If the system does not turn off when the power switch is pressed, the system may be
hung. Press and hold the power switch until the system turns off completely (this pro-
cess may take several seconds). Alternatively, press the reset button to reset the
system and reboot. If the system is hung and both buttons fail to function properly,
unplug the AC power cable from the computer, wait for it to completely stop running,
plug in the AC power cable, and, if it the system does not restart, press the power
switch to restart the system.
Certain configurations of Dell computer systems comply with the requirements set
forth by the Environmental Protection Agency (EPA) for energy-efficient computers. If
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the front panel of your computer bears the ENERGY STAR Emblem (see Figure 1-3),
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your original configuration complied with these requirements and all ENERGY STAR
power management features of the computer are enabled. To disable or change the
operation of these features, you must change the setting for the Power Management
category in the System Setup program. For instructions, see Chapter 2, "Using the
System Setup Program."
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NOTES: As an ENERGY STAR Partner, Dell Computer Corporation has determined
that this product meets the Energy Star guidelines for energy efficiency.
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Any Dell computer bearing the ENERGY STAR Emblem is certified to comply with
EPA Energy Star requirements as configured when shipped by Dell. Any changes
you make to this configuration (such as installing additional expansion cards or drives)
may increase the system's power consumption beyond the limits set by the EPA's
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ENERGY STAR Computers program.
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The EPA 's ENERGY STAR Computers program is a joint effort between the EPA and
computer manufacturers to reduce air pollution by promoting energy-efficient com-
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puter products. The EPA estimates that use of ENERGY STAR computer products
can save computer users up to two billion dollars annually in electricity costs. In turn,
this reduction in electricity usage can reduce emissions of carbon dioxide, the gas pri-
marily responsible for the greenhouse effect, and sulfur dioxide and nitrogen oxides,
which are the two primary causes of acid rain.
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