Nintendo Switch fan problem

[ScarySquirrel18]

Hello!
My nintendo switch’s fans are running on max speed, no matter what, from the moment it is turned on.

I suspect it is something to do with the fan not receiving the pwm signal it needs.

Any help would be appreciated.

 

[Ryab]

Hello!
My nintendo switch’s fans are running on max speed, no matter what, from the moment it is turned on.

I suspect it is something to do with the fan not receiving the pwm signal it needs.

Any help would be appreciated.

Is the system modded at all?

 

[BigOnYa]

Hello!
My nintendo switch’s fans are running on max speed, no matter what, from the moment it is turned on.

I suspect it is something to do with the fan not receiving the pwm signal it needs.

Any help would be appreciated.

You should list more details.
Switch Model
Stock/Softmod/ModChip
If Modded - What Homebrew installed? (Sys-Clk)?

 

[ScarySquirrel18]

You should list more details.
Switch Model
Stock/Softmod/ModChip
If Modded - What Homebrew installed? (Sys-Clk)?

It is a softmodded V1 switch, sys-clk is not installed

Post automatically merged: Dec 16, 2023

Is the system modded at all?

Yes, it is softmodded

 

[BigOnYa]

My guess is it needs new thermal paste, and/or the ribbon cable from the fan is loose on motherboard connector, or a failing fan, or your M92 chip is bad. I would inspect inside and do new thermal paste to start. Sorry to hear, and good luck.
https://www.ifixit.com/Guide/Nintendo+Switch+Fan+Replacement/113058

 

[ScarySquirrel18]

So I replaced the thermal paste and still, it has the same problem, I also checked the cable to the motherboard, reseated it.
Is the M92 chip also related to the fan? I thought it was only for the charging part.
Also the temps are max 42-43c while playing zelda

 

[BigOnYa]

So I replaced the thermal paste and still, it has the same problem, I also checked the cable to the motherboard, reseated it.
Is the M92 chip also related to the fan? I thought it was only for the charging part.
Also the temps are max 42-43c while playing zelda

I don't know, sorry. But you can try looking at this: https://www.tronicsfixforum.com/t/info-board-diagram-and-part-numbers/91

 

[jkyoho]

check mainboard back side if this area has any damage