My Fanatec died, should I convert it?

So my trusty Fanatec CSW v1 has been my daily driver for ages but it has now decided to not start at all. PC doesn't recognize the wheel at all. I checked the pcb for burnt components but everything looks fine. All warranties etc is long gone so contacting Fanatec is pointless. So should I begin the journey to convert the fanatec base to run MMOS etc with stm32 or try to fix the pcb somehow? Any input would be much appreciated.

See of you can fix it first

Get your multimeter out and see if its a simple fix

I found the multimeter and started checking voltage with a smaller psu to begin with (12V). I found that there was almost no loss in voltage across the board all the way to the usb jack and all the other ports as well. 2 rj45 ports had one respectively 2 dead (sub 1 volt) pins. I also tested the start button pcb and the button itself works and let's power through upon click ( tested with continuity) and the leds around it also receives power but don't light up. What more can I test? I think everything gets full power, although its only 12v it didn't work before with 24v either. Could it be some type "barrier" that blocks startup? Since it doesn't even start I don't think it's corrupt firmware.

Is there any power or continuity to the motor(s)

Can you identify the motor driver / mosfet ?

Yes, tested and motor/mosfet was fine. I do not think its something with the motor side of the board. I have now been able to get the start led on, which is good. I can do it by shortcutting the first mosfet inline from the dc jack. I short the in-pin with the middle pin or the middle pin with the last pin and the led lit up.There is a slow turn in the motors but they stall after 1-2s. But the pc still don't recognize it. Do you think its just the psu that is the cause for not recognizing on pc, big difference between 12v and 24v? I know that the motor stall because of the psu at least.
If I remember correctly the fans only start after a while when the temp is high so the fans shouldn't spin from start?
Do you think the mosfet is the cause of the power button not "working"?

has one of the voltage regulators failed ? - usually 3 pins Vin - Vout - Gnd

The regulator is named fdd41441. First when having black on Gnd and and red on Vin it reads 10v. With red changed to Vout it also reads 10v. When I short either Vin or Vout with Gnd the base "powers up" but no pc signal. Then when the leds are red Vin to Gnd reads 4V and Vout to Gnd reads 0V. This is with the 12V test psu. I have ordered a test psu at 24V which arrives Friday.

Yes, tried it and so far so good. Everything seems to be working as it should. Interesting how the start button didn't work with a low voltage psu but now with the proper 24V it does. Have no idea why it shut down in the first place, but I'm happy it works.

That’s great. I’m glad you got it working. Some boards need a minimum voltage to even turn on.