LENOVO IdeaPad 3-15ALC6 - 82KU (board NM-D521) blinking continuously 0.5A

[pc_okay]

Hello friends,

I have this laptop AMD Platform starting & not posting, fan spinning.

When i press power button, the board get almost immediatly 0.5A ~ and board get stuck at 0.5A with power button led blinking indefinitly.
If i stop the computer (pressing 5s power button), board stop and when i restart i get approx 0.37A ~ and


I try to reflash the bios with no luck, same result, and i try disabling onboard ram (i remove resistors accordling schematic), no more progress.

CPU and his area heat, maybe the cpu is dead?

I look for some signal:
SLP_s3 => 3.28V
ALW_PWRGD => 3.3V
PLT_RST_N => 0V

Of course i get no display (internal or external), no caps lock indicator.

What can i look for ? is it dead?

links for shematic:
https://www.badcaps.net/forum/troubl...-hs761-nm-d521


Thank you ! 😀

[adiasterix81]

did u managed to resolve it? I have two lenovo with the same problem. Starting no immage just the power led blinking forever. In both cases i reflashed bios and IT chip. All voltages are ok

[MarekR]

I also have a Lenovo with this problem, was it fixed?