Installation
When installing the A40 Ultimate, simply position 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 in whichever orientation you prefer for the airflow fan. Then, using the included thumbscrews, tighten the pump down onto the CPU. With it secured, you can install the airflow fan.
With that done, install the fans and connect the pump and fans to the CPU fan headers and you're good to go.
The mounting hardware included with the CRYORIG A40 Ultimate is very easy to work with. I would rate its installation a 9 on a scale of 1 (hardest) to 10 (easiest).