Installation
Installing the Celsius S24 is very simple. Start by positioning the backplate on the motherboard and use the screw pillars to hold it in place. Now, apply some thermal paste in preparation for mounting the pump.
Position the pump and slide the bracket over the screw pillars. Then, using the included thumbscrews, tighten the pump down onto the CPU. Once that is done, plug the pump into the CPU fan header and attach the fans to the radiator and plug them into the built-in fan controller.
I would rate its installation a 9 on a scale of 1 (hardest) to 10 (easiest).