Hello friends
Got this motherboard with ram buit in that didn't power on : Asus X550JX rev 2.0
No short to GND At all coils.
When i connect charger cable ( from power supply ) the lap is on , consumption is going from 0.03 to 1.8 ( with fluctuation = 0.6/1.2/1.6/1.8 ) for second than back to 0.03.
All voltages are presents when she's on for this second.
Try anothers bios same issue. changing bios chip same issue too.
RSMRST IS OK...Plt_rst is present..
The only thing that i notice is : Pwr_sw at pin 110 U3001 = = 0.133 v ! it must be 3v
Also Pwr_sw is = 0.133v at D3201 pin 3
All others voltages at D3201 are present.
Tracing Pwr_sw from pin 110 to a resistance = R3037 100Kohm...find 3Va from one side but from the side of io is 0.133v...changing resistance still same issue .
What i miss...what to check else !...thank you
Got this motherboard with ram buit in that didn't power on : Asus X550JX rev 2.0
No short to GND At all coils.
When i connect charger cable ( from power supply ) the lap is on , consumption is going from 0.03 to 1.8 ( with fluctuation = 0.6/1.2/1.6/1.8 ) for second than back to 0.03.
All voltages are presents when she's on for this second.
Try anothers bios same issue. changing bios chip same issue too.
RSMRST IS OK...Plt_rst is present..
The only thing that i notice is : Pwr_sw at pin 110 U3001 = = 0.133 v ! it must be 3v
Also Pwr_sw is = 0.133v at D3201 pin 3
All others voltages at D3201 are present.
Tracing Pwr_sw from pin 110 to a resistance = R3037 100Kohm...find 3Va from one side but from the side of io is 0.133v...changing resistance still same issue .
What i miss...what to check else !...thank you
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