Hey all, i bought a pre-built PC around 3 years ago from PC World, the PC is an asus M32bf. I have already changed the power supply from a 350 watt to a 600 watt, and i was planning on adding an rx 480 and an i5 4690 since i have also bought a new motherboard. My main concern is the fans as it only has 1 fan in the back so im worried my GPU will overheat whilst gaming. But the positives are that i dont have to do a complete rebuild since i only have to change CPU and GPU. Should i add the GPU and CPU to this PC or buy a new case and build a new PC?