just found out it wasn't the gpu, haha woops.
At first sounded like it was gpu, then at a clsoer inspection i thought it was the hdd, i unplugged the hdd and the noise continued. So that means the noise is coming from the front of the case where there aren't any fans or noise producing equipment.
So maybe it is a bios beep?
It starts at the same time as the beep when you turn you computer on.