Problem with RGB

[Corporalis]

Hello!

Yesterday I encountered a problem with my new pc build. 

I just build a custom loop Into my pc, everything is from ek waterblocks.

The rgb worked fine (cpu and gpu Block as well as 3 rgb fans and pump) until I changed the non rgb fans. I changed 6 fans from normal to pmw ones to controll their speed.

I recognised that the rgb did not work so I connected the rgb cable to the hub on the mainboard. Now to my problem. The rgb from cpu block and pump work but the fans don't light up anymore (just 1 led on one fan) as well as the gpu Block does not work either.

If I connect the fans to the splitter cable the leds from pump and cpu dimm until I disconnect the fans. The gpu Block does not work neither with or without the fans.

 

Here are my specs:

Mainboard: aorus z 390 pro WiFi

 

Cpu: 8700k

 

Gpu: asus tuf rx 6900 xt

 

Wstercooling is entirely from ek.

 

Psu is a 1000w be quiet platinum.

 

I don't think the rgb header is overloaded since it worked the day before just fine... did I maybe short the MB by connecting the cable while still turned on?