Power Management: Dell Dimension P133v, P166v, and P200v
Power Management: Dell™ Dimension™ P133v, P166v, and P200v
The system provides an APM 1.1-compliant interface with 2
power management features: hard-disk drive spin-down and monitor
control. In general, power management capabilities allow the
system to be put into a power-managed "sleep mode" by
either entering a user-configurable hot-key sequence on the
keyboard or by the expiration of a user-settable hardware timer.
When in the sleep mode, the system board reduces power
consumption by using the power-saving capabilities of the P54C
processor and also spinning down hard-disk drives and turning off
DPMS-compliant monitors. Add-in cards supplied with APM-aware
drivers can also be put into a power-managed state for further
energy savings. The ability to respond to external interrupts is
fully maintained while the system is in sleep mode, which allows
the system to service requests such as incoming FAXs or network
messages while unattended. With Power Management enabled, the
monitor and the hard-disk drive(s) automatically switch into
low-power mode during periods of system inactivity. The power
management feature is implemented at 3 levels plus a disable. The
3 different levels apply to the monitor only; hard-disk drive
operation is the same for all 3. When Power Management is
disabled in the system setup program, only the timers are
disabled, not the APM interface.
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NOTE: It is important that a DPMS (Display Power
Management Signaling)-compliant monitor be used with this
system. Otherwise, there is a risk of monitor damage if
Power Management is enabled. |
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