I'm pretty computer-stupid, so I'm sorry in advance. ):
CPU is Intel Core i7 2600
My cpu is running at close to 70 C right on start up after leaving it off for a long time, it then climbs to mid 90s and slows everything down or blue screens when I try to do pretty much anything.
I've reapplied thermal paste twice, after the last application, there's been a burning smell, not sure if it's a coincidence. The thermal paste is 2-3 years old, but I read that it was good for several years if you kept it in the fridge. Not sure if that's entirely true or how to tell if it's gone bad.
There were a couple of fans that had stopped working, so I bought new ones. The cooling that's directly on the cpu is what came with the computer and is just a little blue-green translucent box which I guess is this?
Liquid CPU Cooling System [SOCKET-1155] - ARC Dual Silent High Performance Fan Upgrade (Push-Pull Airflow)
Speccy says it's running at 6500-7000 rpm if that's relevant.
I'm super poor right now, so cost-considerate options if possible would be much appreciated.