I bought this product last August, but I completed my PC build in Octuber 2021. The cooler worked for about two months (Oct and Nov) but in december my CPU temps started to get progressively higher. Now my PC is about 20ºC hotter than before and the cooler is making a strange noise like if small rocks or bubbles were inside the tubes. I haven't mess with BIOS, OC, nothing. This PC was built for regular office work and casual gaming and is running on its default seettings. When playing a game, my AMD CPU could get to 75º or 80º as a max temp before, now runing the same game it can get to 90º and even +100º. I noticed this problem because of the strange noise and because I started to lose FPS in games and, finallly, my PC crashed a few times with a temp warning. For the time being, I'm not using this PC and I fear the high temps could have damaged my CPU. I wrote to MSI Service and Support but I haven't got a reply yet. Any suggestions?