820-4924-a running slow

[TBFix]

Hi yes Pram and smc rests done. Changed those components but still the same very laggy in OS and progress bar. Still getting the "Heatpipe outgoing air 129c"

 

[2informaticos]

The problem should be U5870 related.
Did you check all surrounding resistors and caps?
See what happens removing Q5871.

Check around U5850 too, just in case.

 

[TBFix]

U5850 is not on this board around the area looks ok. I checked caps and resistors and traces around U5870 no issues. I removed Q5871 and it runs even slower to a crawl.

I swapped the SMC in case it was having an issue but still the same.