Hi, I recently moved parts out of my Alienware X51-r2 to a different case and replaced the GPU from a 960 to a 1050 TI. I then tried to boot up the pc but was met with no signal from my monitor. I moved the parts back to the alienware case and put the 960 back in but to the same result. After trying to rebuild the pc 3 times I gave up and put back together the pc that was in the other case and was given no signal to the monitor as well.