Hello, I have recently got a lenovo thinkcentre m91p small tower, I was planning to get a powersupply, and an R9-280x to be able to game as the CPU in this thing is still capable, but I have regret buying it after looking into the internet and seeing that a lot of people complained about the GPU not working, I really hope they are wrong, as if this happenes I would be extremely annoyed, thanks a lot in advance.