LAPTOP NO POWER PROBLEM SOLUTIONS | LAPTOP POWER ON SIGNALS | DEAD LAPTOP SOLUTIONS

 

 

CHECK STEP BY STEP SIGNALS

1. VCC-3V Power to SIO and BIOS.
2. ECRST-RESET To SIO.
3. LID SWITCH THERMTRIP-Lid sensor should work thermal trip should normal.
4. Clock SIO-32.7khz clock from either PCH.
5. EC BIOS-EC BIOS should perfect.
6. RTCRST-RTC RESET and crystal 32.khz should PCH.
7. VCCDSW3_3-Power to PCH.
8. DPWROK-Power Ok Indication for the VccDSW3.3 V Rail.
9. PWRBTN(NBSWON)-Power switch 3-0-3V variation.
10. RSMRST-SIO generate 3v at this pin.
11. PM_PWRBTN(DNBSWON)-Post power button to PCH 3V Variation.
12. SLP_S4/SLP_S3-PCH generate 3V send to SIO giving Confirmation to turn on power.
13. SYSON,SUSP,VR ON-All buck converter turn on one by one.