820-01521 stuck 5V draw 0,358A

Dozer

Member
Hi got this board without any signs of liquid damage, looks nice.
one port working 5V, 0,358A stable (U3200)
other port 5V 0,535A about 30seconds and restarts looping (U3100)

I have power in port (U3200)
PP3V3_G3H_RTC 3.3V
PP3V3_UPC_XB_LDO 3.3V
PP1V1_UPC_XB_LDO_BMC 0V

R3450 1.68V both sides
R3460 0V
connector upside down
R3450 0 V
R3460 1.68V both sides

I have power in port (U3100)
PP3V3_G3H_RTC 3.3V
PP3V3_UPC_XA_LDO 3.3V
PP1V1_UPC_XA_LDO_BMC 0V

R3430 1.68V both sides
R3440 0V
connector upside down
R3430 0 V
R3440 1.68V both sides

need some help please
 

2informaticos

Administrator
Staff member
You didn't say anything about 1V8 XA/B LDOs.
What about PPBUS_G3H voltage and diode mode?

Compare diode mode readings, between U3100/200, on all (4) LDO lines.
 
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