I just set up my first Plex server and found that I have to convert all of my totally legally obtained MKVs to MP4s to run on Plex.
Right now I'm encoding them with HandBrake and it's taking ~30 mins per file and using 100% of my CPUs capacity (running around 80 degrees C).
Is this how most of you guys do it? or am I missing something? I'm concerned about hurting the lifespan of my CPU. Would using my GPU to encode be a better option?
80°F is fine, i don't think you should worry about it. 185°F would be a bit concerning for a really prolonged use, so unless you messed up your units and it was actually 80°C, i wouldn't worry about that personally.
80 C isn't that crazy either, but I wouldn't want to go more than 5° higher than that. You could edit your fan curve or look into an aftermarket air cooler + new thermal paste if you have a desktop. Cheap ones here: https://yewtu.be/watch?v=8NsFuNqINww