I was playing Sleeping Dogs, because its a damn good game and you should check it out- but thats beside the point. I went to the bathroom, and when I came back I continued playing like usual. Then I had a blue screen. I'm running a rig with a Phenom II 955 Black Edition, a GTX 760, and a Hyper 212 Evo with 2 fans on it. I'm overclocked to 3.7 running at about 32 celsius average, so a system hang is not very common. I reboot to check my system temps in the BIOS (like I do every time i get a bsod- like i said, not very common) and my system was noticeably louder. I look at the temps and lo and behold- my CPU is at a nice chilly temp of 83 celsius (around 180 fahrenheit). I start flipping out, turn off the "smart fan speed" shit in my BIOS and shut down my machine. My case was hot to the touch and I'm REALLY fucking lucky that my CPU didnt die. Turns out all of my system fans weren't running (minus my single molex fan) and the Evo was running fanless. If you couldnt tell already that's not very good. I'm kinda scared to use my machine now... I think next upgrade I'm gonna get a AIO cooler... I hope my motherboard isnt dying.
take the side panel off the case and have a fun blowing into the case. That should provide enough airflow to let you troubleshoot the problem. AKA mess about with whatever fan control you are running.
Im not having any issues now, but a few hours after this shit went down the air conditioner screws up. Now I gotta use my laptop because its 90 something degrees in my room and its doing nothing but taking in hot air and blowing out hotter air and taking in the hotter air again... so not a cool thing (no pun intended).