This is making it very difficult for me to complete the end game dungeons and people are getting mad that I keep dying when it's out of my control.

At completely random intervals my game will completely freeze for about 5 seconds. I have no idea what could be causing this. I thought it was because I'm overclocking my GPU (which I've been doing for months now) but after turning the overclock off, I noticed I'm still getting the freezes.