Announcement

Collapse
No announcement yet.

Asus x415DA / MB: X415DA / won't turn on / I have 3V in O_EC_RST#

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Asus x415DA / MB: X415DA / won't turn on / I have 3V in O_EC_RST#

    Hello everyone,
    so, the board turns on the white LED when connecting the charger, and turns off quickly. I noticed that when it turns on, it goes up to 3 and 5 V and drops quickly.
    A question first of all:
    What would be the resistance of the Ryzen processor in this case?
    PL 8000, 8001 and 8002 are at 2.1 Ohms, is that correct?

    I don't have 3V on pin 96 PM_RSM_RST# of the EC nor on pin 14 O_RST_EC# and I also don't have a short on these lines.
    On the EC I only have +3VA on pin 12.
    On the pins where +3VA_EC should go I have nothing.

    I have already reflashed the main BIOS, but I couldn't read the EC through SVOD3, I believe it is not being powered.
    Is the lack of this +3VA_EC voltage right?
    I thank all my colleagues in advance!

    #2
    The resistance to GND readings for APU Vcore is right.

    +3VA_EC is needed to power on the EC.

    Check resistance to GND on +3VA_EC. This rail will be created from +3V LDO which in turn will be generated by 3V regulator.

    Comment

    Working...