Question One of the Graphics card fans stops if I plug the LED connector after clean up

[int]

Hi there guys!
So, I just bought a Galax Geforce RTX 2080 TI OC white and it was working just fine. The temps were high, so I decided do disassemble it, clean up and change the thermal paste. After reassembling it and starting up the system, I noticed one of the two fans had stoped working.
I disassembled it again, inverted the cables and now the other fan stoped, so it wasn't the fan itself.
I thought the connector in the PCB was faulty, but suddenly I forgot to connect the LED cable in the graphics card and both the fans worked fine.
I tried to plug it in again and, again, the fan stoped.
What the hell? I have absolutely no idea what's going on.
I'm running it with the LEDs of so far...
Thanks in advance!!

 

[Steven chinlung]

Hi there! Is there any chance that you ‘spilled’ the thermal paste nearby the PCB connector? Thermal paste should be conductive but that might be the case tho.. or if u didn’t spilled it then how much thermal paste did u add? if its too much its also no good