Hi there folks. I have a 4790k on an ASUS Maximus VII Hero mobo with the Corsair H100i all in one liquid cooler. The CPU is clocked to 4.4Ghz using 1.26V. I have the SP fans that came with the H100i kit sucking air from outside the case and pushing it through the radiator. My pump speed is 2147 RPMs, and the H100i temp is 45°C at idle. This problem has been ongoing for some time but with the cold winter air It wasn't too bad. Now that it's getting warm I'm starting to have problems with the CPU temps. I was just hitting 90°C when trying to play battlefield 1 and had to quit the game immediately. The CPU temp hovers around 55°C at idle. My room is 72°F. The cooler is 3 years old. I used to use a 4770k with this H100i and had no problems. Could the cooler be at fault, is 3 years too long to use it? I have tried re-seating the waterblock 4 times now, and have the same results every time. I checked the backplate and it seems to be mounted correctly. I am using artic silver 5 with the rice method, and tighten down using the X pattern until finger tight, and then 1 more rotation with the screwdriver. I am about at my wits end here and I am considering buying a Noctua air cooler or a new H100i, because I've tried everything I know to do. Does anyone have any suggestions, or know of a step that I am missing?