GPU Fan 0 RPM detected but it is running at MAX Speed even on idle

[Teddy10_0]

Hello,

I just bought a second hand graphic card SAPPHIRE PULSE RX 5700 XT. It seems to be running fine, just the FAN is not detected but it is running at MAX as soon as I turn it on. I went to check and saw that a Transistor is missing Q211. But the seller soldered resistors on R213 which is normally empty on normal card.
So on this one, Q211 is empty and R213 has something.

see picture below near the Fan PIN connector

Can anyone help me on find the reference of the missing Transistors?

Thanks

 

[Caring1]

The layout and numbering appear to be the same as a Powercolor 5700XT and 6700XT.
The Transistor on those, in position Q211 seem to be marked AF VL 39, If that helps.

https://www.techpowerup.com/review/powercolor-rx-6700-xt-red-devil/images/front_full.jpg

 

[bug]

Possibly stupid question, but have you checked the fan cables and contacts? If rpm is not properly detected, what happens is that the system keeps telling it: spin faster. That would keep it spinning at max rpm.