LAPTOP POWER STATES (S0-S5)
Laptop Power States In windows base pc’s and laptop has normally six sleeping states from power on to fully functional laptop when display is on Screen. Power states of laptop is represented by 1. S0 (Fully functional with data execution ) 2. S1 (CPU stop working but all powers is active) 3. S2 (This state is not generally found in laptops) 4. S3 (Only Ram has power and data remain.) 5. S4 (Data is saved in non-volatile memory like hdd and all run power is off ) 6. S5 (Soft-off all suspend/run powers off ) CQ40 power planes with states: S0 (WorkingState): This is fully functional system in which users do their work. S1 (power on suspend mode): In this sleep state cpu stop executing data from system. which is usually like to turn off display stop display driver. Flush cpu resisters ALU section stop working. After all this Power of cpu is ON. It take less time to recover in S0 (WorkingState) and it consume more power in sleep mode near about 160 watts. S2: This