If you install this perfectly in line with the motherboard, the plastic power switch won't be able to flick all the way into the "on" position when fit into the shell. Ultimately I had to offset this switch to the right on all 3 units I installed it on to even get it to function. Even then, it's a bit stiffer than the OEM switch and can get momentarily stuck between on and off. Fine if it's your only option but probably best to go get an OEM switch.
