I also had this problem. I bought the PWM fan adapter for the VGA fan and wanted to reconnect it. Unfortunately, this didn't work, so I used the tweezers to pull the cable out of the back of the graphics card and used the internal connector. I also had to add a splitter (luckily I still had one lying around) so I could plug in other fans. The only problem is that you can't change the minimum speed. Maybe there is a controller for it, then I would install something like that, but at least the whining is gone with the other fans. Optimal for me would be to let the fans run at ~400-500 rpm in idle and only at a game start to go up to 1000 rpm at default and from there further temperature controlled.