Enlight cases are quite popular and have served many people well for many years. I don't personally use one but they are good cases.
This case design is pretty standard of many brands. The O/C fad has spawned the four-hundred fan cases that sound like jet engines and have individual play toys, aka fan speed controls on the front of the case for playing, I mean adjusting fan speed to lower noise.
It may be possible that the side vents on the Enlight case short circuit the airflow that would normally flow from front to back over the CPU heatsink/fan and the graphics card. You could test this with small pieces of yarn taped to the side of the case and see if the air is sucked in or air pushes out the side vents. If air pushes OUT the side vents then this would not be good. You could tape over the side vents and see if the CPU temp drops. ONLY tape the side vents if you have a good air inlet opening at the front of the case by your front fan. This is where most cases take in air.
If you go to this link you will see how the air is suppose to flow thru a case for proper cooling of the CPU. The bottom fan PSU's are NOT desirable in my view as they use hot air from the CPU to (try) and cool the PSU. I prefer instead a conventional single fan 350W high-perf. PSU from PC Power & Cooling, and the additon of a rear fan to draw the cool incoming air across the CPU/heatsink and out the back of the case.
If you do not have enough exhaust fan then you can end up with the hot air just tumbling around the CPU while the cool air goes out the side vents in your case, instead of over the CPU and out the back of the case. Any dead airflow pockets around the CPU will increase operational temps.
Take a good look at the AMD PC System Builders guide for good tips.AMD PC BUILDER GUIDE
If only they knew...