820-00928-A A1707 15" TouchBar pulling [email protected]

[Melvinzill]

Finally got around around to measuring this:

U3100
LDO_3V3 - .006
LDO_1V8A - .526
LDO_1V8D - .027
LDO_BMC - .51

UB300
LDO_3V3 - .007
LDO_1V8A - .522
LDO_1V8D - .006
LDO_BMC - .521

U3200
LDO_3V3 - .433
LDO_1V8A - .528
LDO_1V8D - .493
LDO_BMC - .522

UB400
LDO_3V3 - .446
LDO_1V8A - .538
LDO_1V8D - .507
LDO_BMC - .524


Hope these help!

 

[2informaticos]

U3100 and UB300 are both suspects...

 

[Melvinzill]

Should I just get 2 replacement chips and replace both?

 

[2informaticos]

Yes, because you have 2 rails (no common point) shorted to ground.