hello! i have a msi gt73vr 7re titan pro with a nividia 1070 gpu i7 7820. i wanna increase my fps during 4k gaming. i was thinking of getting the 2080 super but from what ive been told its a different size from the 1080 and 1070mxm and it wont fit. this is also my first attempt at modifying my laptop so im not sure if this is correct. from what ive researched this laptop is sli compatible, meaning it has a slot for another gpu AND ive managed to find someone who not only sells a 1070mxm but also the modified cooling system ill need, but after calling the manufacturer he mentioned something about firmware not supporting sli because thats not the type i originally purchased. i dont know anything about firmware so if someone could explain to me what he meant that would be awesome. because im a little upset that my pc literally has a slot for a second gpu but im being told i cant do it because of firmware. this same guy also was the one who said the 2080mxm wouldnt fit, but from the comparison photos ive seen online they look the same size and have the same measurements. any help and advice on this would be appreciated.