
system state.
2.6 Power Management State Transition
2.6.1 Power Management Mode Definitions
Each system (or model) may have different PM model and state definition. For clear, see the following table :
PM Mode Definitions
Full-On The CPU runs in full speed and all the devices are power on. The system can respond to all
applications with maximum performance.
1. The system is in the state S0.
2. The CPU is in the state C0.
3. All the devices are in the state D0.
Geyserville
III CPU will running between diffenent BUS ratio depend on system loading, if power Schemes set to
Presentation or Max Battery
Idle This mode is similar to Full-On . The CPU might change into C1 or C2 state depend on the OS, in
order to save CPU power consumption.
1. The system is in the state S0.
2. The CPU is in the state C1 or C2.
3. All the devices are in the state D0.
Suspend The state is more power saving than above, the CPU and most of parts power will be cut off except
DRAM system.
1. The system is in the state S3.
2. The CPU and all of devices are power off except DRAM system.
SOFF/STD The state is the most power saving mode, all of the parts in the system will power off, except the
keyboard controller enter to idle mode continuously to control the battery charging and monitor power
button.
Note: Before enter to S4, the OS will save all of data or registers in HDD.
1. The system is in the state S5 or S4.
2. The CPU and all of devices are power off.
When system is in suspend mode (S3 state ), external keyboard/mouse/touch pad/Lid cannot be the wake up event source.
Only Power button can resume the system.
2.6.2 Uniwill Smart Power Function
The purpose of Smart Power is to save the power consumption during the system is not busy. This function not only save the
power of Battery to extend the Notebook’s battery working time, but also reduce the the temperature of CPU / Chip and keep
system working in a lower temperature to extend the CPU and whole system’s life. Reduce temperature will also keep
Operation System work stable.
2.6.2.1 Instant On Mode: If press Instant On button to power on, CPU FSB 400 ext. clock will keep at
80MHz, CPU FSB 533 ext. clock will keep at 90MHz CPU bus ratio will keep at the minimum.
2.6.2.2 Long Battery Life Mode: Also called Smart Power 1, CPU FSB 400 ext. clock will keep at
100MHz, CPU FSB 533 ext. clock will keep at 133MHz CPU maximum bus ratio will keep at the most
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