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Im not overly familiar with how this entire USB system works
Liquid damaged board corrosion and burn pad on UB300 and corrosion under UB400. Reballed UB400 and swapped UB300 for good chip.
Get 5v at fuse but wont go to 20v.
Ive poked around and found a few 3.3v lines but not sure of what all...
I put that on. It had an EFI passcode. I removed it no biggy. Its still running really slow. Starting to think its an issue with the SSD possibly? Although the mouse seems sluggish also so it seems like a Kernel Panic kinda of slowness.
Got a 820-3208 that had the bios swapped by someone and its running dog slow. I dont know how to clean the ME region or add the serial so needing some help.
Serial Number is C02KL348DRV7
Sticker on board is C02317201KBF9DHAK
I'm at home right now but before I left I checked 3v3out 1v1 ldo 1v8 ldo and some other power rails around those chips
1v1 was 1.08-1.1v
1v8 was 1.79v
3v3 out was 3.29v
??????there was one other 3v3 line that was also 3.29v
the ldo voltages I believe were only present on 1 chip at a time...
Liquid was around and down both USB C charging Circuits and controllers
Cleaned area and found 5 burnt traces
R3351 Burnt PPBUS_G3H pad - Ran jumper to R3451 PPBUS_G3H side and replaced R3351 with new 10K resistor
R3360 Burn via - Cleaned and checked...