Error 512 - Rear Chassis Fan Not Decteted

[Evitato1]

Hello I changed the rear fan of my pc but when I start the pc it gives me Error 512 - Rear Chassis Fan Not Decteted how can I fix this error?
The ventila in question is a Noctua NF-A9x14 PWM

[erico]

Did the original fan have a three pin connector or a four-pin connector?

Try plugging the original fan back in.

Does it work  without the error message, as expected?

If it does, that means the Noctua NF-A9x14 is faulty or plugged in incorrectly.

If  the header on the motherboard is for a three-pin fan and the new four-pin fan plugged in correctly the fan will run a t full speed all of the time.

Take a read of the article at the link below.

https://landing.coolermaster.com/faq/how-to-connect-a-3-pin-or-4-pin-fan-to-the-motherboard/

[Evitato1]

Old fan was at 3 but I solved it by changing the fan with another faster one and the error message didn't come out anymore

[erico]

OK.

So the Noctua fan was faulty, as I suggested in my response that might be the case.

[Evitato1]

It worked it was just slow and so it gave error