820-3787 with fan running wild and laggy

huzeafa

Member
Hello guys , have an 820-3787 and the board is spotless , it runs slow and the fans are crazy , I have so far replaced the system trackpad cable , but no changes , given the board is so clean , I have checked out page 44 and compared to a working board and it checked out , now I don't even know where else to check . Please help
 
Last edited:

2informaticos

Administrator
Staff member
Do you have good battery connected?
Did you change both trackpad board and flex?

Try disconnecting webcam.
Run HWMonitor and see which strange values reported.
 

huzeafa

Member
I got the following that stand out crazily high

GPU DIE = 128
GPU PROXIMITY=128
GPU DIE 2 =129
HEATPIPE 2 =128
HEATPIPE 3 = 128
HEATPIPE INCOMING AIR = 21
HEATPIPE OUTGOING AIR =128
 

2informaticos

Administrator
Staff member
The corresponding sensors are related with U5850.
Check Q5801/03, traces and components in that circuit.
ALS is connected on the same bus, that's the reason I said to try disconnecting webcam.
Also check R5350/51 and post voltage and diode mode readings for data lines.
 
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