Description Of The Green Functions - JETWAY J-791A User Manual

Timeout parameters:
•
HDD Standby
HDD Standby timer can be set from 1 to 15 minute(s).
System Doze
The "System Doze" mode timer starts to count when there is no "PM events" occurred. The
valid timeout setting is from 1 minute up to 1 hour.
System Standby
The "Standby" mode timer starts to count when "System Doze" mode timer timed out and no
"PM events" occurred. Valid range is from 1 minute up to 1 hour.
System Suspend
This function works only when the Pentium CPU is installed. The timer starts to count when
"System Standby" mode timer timed out and no "PM Events" occurred. Valid range is from 1
minute up to 1 hour.

3-4-2 Description of the Green Functions

This motherboard supports HDD Power Down, Doze and standby power saving functions
when Intel Pentium Processor CPU is installed. The suspend function is also supported when
the SMI switch is short (ref. page 13). The detail description of these functions are provided as
following:
HDD Standby Mode
When system stop reading or writing HDD, the timer starts to count. The system will cut off
the HDD power when timer ran out of time. The system will not resume operation until either a
read from or a write to HDD command is executed again.
Doze Mode
The system hardware will drop down CPU clock from normal working speed when Doze mode
timeout occurred.
Standby Mode
When the system standby mode timer ran out, it will enter the standby mode and retain CPU
at slow working speed. The screen will be blanked out.
Suspend Mode
When the system suspend timer time out, the system will enter the suspend mode and the
chipset will stop CPU clock immediately. The power consumption in Suspend Mode is lower
than in standby mode. The screen is also blanked out.
PM Events:
AWARD BIOS defines 15 PM Events in the power management mode (Doze, standby &
suspend). The user can initial any PM Events to be "Enable" or "Disable". When the system
detects all of the enabled events do not have any activity, it will start the system Doze timer
first if the "Power Management" isn't "Disabled". Once the system Doze timer timed out, it will
process doze power saving procedure by starting the system standby timer. When the
standby timer ran out and all of the "Enabled" events remains silent, the system will enter the
standby mode. By now, the system will not only process the standby power saving procedures
but also start the system suspend timer. When the suspend timer time out, all of the CPU
clock will be stopped by dropping system clock down to zero and remains this way until any
one of the "Enabled" event occurred.
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