feelinfroggy777 said: You may have an issue with your cooler. AIO’s tend to degrade over time and their performance drops. I RMA’ed a Corsair H115i this year. So I’m in Norway, and ambient temps are pretty low at the moment, so it’s definitely not that. Right now I’m running the pump in performance mode to try and keep the temps down, so its around 3000rpm. When I was running 4,3GHz previously, i had it in quiet mode, which is around 1800rpm, and it was fine then, so something has changed. I am noticing that the difference in pump setting is worth 5-10c though, depending on the load. I’ll have a go at reverting back to stock and see what happens. Thanks for the reply!