During the build several things adapted as the holders for the reservoir eventually turned out to be a little too big.
For the graphics card, the idea was to use the Cooler Master Vertical Graphic Card Holder, so the video card was very close to the motherboard.
Finally the vertical position of the case used (single slot) here fit the Sapphire RX480 perfectly after a few adjustments. The waterblock of the RX480 is single lock.
Finally, the dragon of MSi placed (thanks goes to Leonard alias 5erveD). The Ryzen 5 1600 replaced by the Ryzen 3700X after a bios update.
This build is sold to a cliënt.