Sergej писал(а):
2N3904 писал(а):
Do you have a regulated power supply unit?
No, it`s wrong way !
draganzile, is PU902 ok? Try to replace it;
then BST1, BST3, VR_SVID..
this is model with i5 4200 processor, it does not have pu902 chip couse it is up to 37W TDP , only model with i7 4700 have pu902
bst1 bst3 resistors are both 2.2
i have checked the capacitators in the resistance mode and they are not shorted...
im gonna check VR_SVID in the morning. i do not have much experience in this. i can find short in controllers, mosfets and other stuff, i have never tested the controller feedback :(
if you have any other suggestions, please say now. i will retest it all in the morning, gonna replace all of the chips again and then will retest feedback.
is it somehow possible that 5v power rail when gets to the PVCC pin somehow fucks up with the capacitator pc914?