iAboodz :
You need what is wrong with the gpu. It could be your case not giving good air flow, it could be your thermal paste and it could also be a faulty gpu that needs to be RMAed. So what is your gpu and try giving more information
It's not the airflow, as the GPU used to remain around 40 degrees with everything in the case the same as it is now. The fans are running, and the GPU appears to be functioning correctly (except for the temperature). It's a Radeon R9 290