Fan controlling issue after switching cases

[McDoudles]

Hey everyone,

 

I recently switched cases. Everything went well, all the parts did fit in and I didn't manage to drop everything on the floor.

Now I ran into a weird issue. Before switching, I was able to control all my fans (1 x 4-pin cpu, 3 x 3-pin case) in my bios. They were running at around 600-900 RPM. Now after switching cases no fan is reacting to changes in the bios, they keep running at ~1500 RPM.

The only thing I changed about the setup is the case:

Some sharkoon case to Fractal Define C, both without fan controlling

And I changed my 4-pin CPU fan with one of the 3-pin case fans. I didn't change the slot on the MB, it's still on the same 4-pin slot as before. 

Reminder that all fans don't react, not just the one I changed.

 

I tried updating the BIOS, doing different settings (custom, silent, perfomance etc) on every fan but that didn't help. I didn't switch around any fans or unplugged any yet.

My MB: http://www.asrock.com/mb/intel/Z87 Pro4/index.de.asp?cat=CPU

Fans: 3xPure wings 2 120mm 1xFractal Case fan

OS: Win 10

 

[LogicalDrm]

If there's setting for controlling each header, set them to DC mode.

[McDoudles]

Quote

58 minutes ago, LoGiCalDrm said:

If there's setting for controlling each header, set them to DC mode.

 

I believe there isn't a setting for that, atleast I can't find it. Anyway I did read up on this and found out that if you connect 3-pin fans on the 4-pin slots you cannot control the fan speed in the bios on asrock mbs. I fixed that by getting a 3 way cable splitter.