As I said in header Mobo is not starting up even on force. When ATX Supply is on nothing is worming up even slightly.All components are cold. On PS_ON there is 0.8V and on Reeset 0.32V. On USB-s I measured shortcut to null on +5V but all data+&- aren`t in shortcut. On ATX connector it self there is no shortcuts to null, even on +5vsb and 5+.
So, before I start to take of "Мультик" , transistors, and other suspicious peaces does somebody have idea for quick repair or I have to do it on old fashion way:)
PS_ON is PWR_ON (PWR_SW) on front panel connector?
Is you measured voltage on PS_ON (power supply) and +5VSB (power supply)?
Mobo is not starting by pressing pwr_sw on front panel (the reason is obvious-0.8V on it).When I try to force it to start by shorting "green&black" wire on ATX connector with supply present nothing hapend.MOBO is dead!
The main problem is with +5 on USB-s who have shortcut to null.
I found Q2 (D408 N-Channel Enhancement Mode Field Effect Transistor - Alpha & Omega Semiconductors) in short cut. After desoldering him MOBO start to boot normaly. I`m not sure what is his purpose on this board and where it`s connected becouse I found him to be bad with very much luck (by accident:) ). I`ll try to locate what`s he doing and to write out...
Thank`s Maco!
P.S. Capabilitiy of users to ruin MOBOS are infinite:)