Hello masters

I have a laptop here that its first problem was broken DC jack
I replaced jack an dlaptop works properly

but now when I shut it down or try to restart it,laptop freezed
even in bios setting,when I select save&exit or press(Alt+Ctrl+Del) it freeze

I flash bios but not help

do you hav any idea whats wrong here?

thanks all

i forgot to say

when i press and hold power key,laptop turnes off

i replace kbc and no change!

Your cooling fan is work?or you try all of item(hdd-cdrw-wireless card vs vs and other)disable(pull up) and cmos battery.And try different cpu and ram.End try bios-I send working bios.

i have another laptop with same problem
any new idea for this problem?

Not sure why you bothered with the KBC, reboot has been handled in the chipset since forever.

I assume you already reset the CMOS. Did you clean the ME region before flashing the BIOS?

Other than that, it's probably a hardware problem. I'd suspect the PCH, but the CPU or its socket are also a possibility. Try swapping out the CPU and if that doesn't help, reflowing the PCH.