Question Case fan problem.

[Jordyshaw]

Hey guys so I've built my PC today's and for some reason only 2 of the 3 fans are working. It's a Phanteks P400A case and B550 Gaming edge board.

Got 3 connectors plugged into 3 headers on the board (SYS_FAN1, 2 and 3). Looked in the BIOS and it's showing no activity with fan 2, any solutions.

https://imgur.com/a/A01qmLV

View: https://imgur.com/a/A01qmLV


Quick edit, I change the default to full speed and all three seem to be working now, then went back to default speed and still all working

 

[Dj0gany]

So no problems?

 

[Jordyshaw]

Once I set "all fans full speed". The one hardly working went to full speed. Then back at default they were all working. Not sure what it was