Specifications

Little Board/P5i Technical Manual
3–14
PM Control by APM—when enabled, an Advanced Power Management (APM) device will be activated
to enhance the Max. Power Saving mode and stop the CPU internal clock. If Max. Power Saving mode is
not enabled, this parameter defaults to No.
Video Off Option—sets the conditions under which the BIOS powers down the video. Selections include
Always On (option disabled), Suspend = Off, Stby = Off.
CPU Thermal Mgmt.—options are Disable, 70°C, and 85°C .
NOTE
Selection of the 85°C should only be used with the 133 MHz CPU.
Other CPU speeds use the 70°C setting.
When the CPU temperature exceeds the selected temperature, performance will be reduced to 33% during
system idle time. System performance resumes to 100% during any power managed event. The system is
again throttled to 33% after 2 seconds of idle time. Power management control must be enabled to engage
CPU thermal management.
HDD Power Down—when enabled and after a set time of system inactivity, hard disk drives are
powered down. Other devices remain active.
Doze Mode—when enabled and after a set time of system inactivity, the CPU clock speed is reduced.
Other devices remain active.
Standby Mode—when enabled and after a set time of system inactivity, the disk drives and video
monitor are shut down. Other devices remain active.
Suspend Mode—when enabled and after a set time of system inactivity, all activities except DRAM
refresh are shut down.
VGA—enables or disables VGA video events as power management events. Default is Off.
DRQ—when On, the power management system monitors system requests for DMA.
IRQn—exempts IRQs from triggering power management events. When On, activity will neither prevent
the system from going into a power management mode nor awaken it from an existing power
management mode.