Hi, i need a help from an experienced member.

Laptop starts, works but has a random shutdown every 20-30 minutes.

As soon as i disassebled it, i saw that one of the USB was broken, pins shorted. i have removed the USB and tried to install windows, laptop shutdown after 20-30 mins anyways.
i have soldered another USB and then laptop started turning off every 2 minutes . every time it could be start again. figgured out that it must have been this usb that has shorted some region in HM chipset so i have removed HM chipset and resoldered another one. THIS DID NOT SOLVE THE PROBLEM. laptop again shutdown after 2 mins, i have removed usb and removed inductors and capacitors next to other USB 3.0 x2 and USB 2.0

now again it shuts down after 20-30 mins.

i do not know what is the fail, every voltage is good , there is no liquid damage and HM is new.
Im trying to flash new BIOS ( this is model with i7-3535 cpu and nvidia 740m graphics ) i have tried to run laptop both on integrated cpu graphics and on discrete , again same stuff happening.

try to write bios with clean ME region, it look like the problem with it.

thank you, already solved with a new bios.
if anyone has the same problem, do not change HM chip, try to flash BIOS first. Would not have changed HM if the USB was not broken. Lesson learned :)

Спасибо, мои русские братья

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Posted after 4 hours 20 minutes 2 seconds:
Also, forgot to mention, U24 was also faulty, replaced with an older model, works fine.


you can lock this. thanks. SOLVED