So my old graphics card, an HD 6870 finally blew up after about 4 years of use. I bought a substantial upgrade, an R9 390 (thank you newegg deals) and installed. Immediately I noticed that temps were way too high for the card under most circumstances. Some research told me it should be running around 30-35 degrees idle and 68-72C under load. This thing is idling about 40c and regularly going over 90 under load, even games that absolutely should not be taxing this beast like World of Warcraft on medium settings or Dota 2. I've also noticed substantially longer load times for a variety of applications which might be due to the heat within the case but I am pretty clueless at this point. I upgraded my power supply just to be sure that wasn't an issue and since I likely needed a new one anyway. Not really sure where to go from here but XFX support is taking forever getting back to me.
CPU: Intel I5 2500k
Motherboard: Biostar T Series
Hard drive: Seagate Barracuda 1TB
GFX Card: XFX Radeon R9 390
PSU: Corsair 750W