Here we see the standard PSU in place. As you can see it is now possible to reach the mainboard with the IDE cable. It looks messy but the wiring is very easy to keep clean (in terms of wiring) and routing is pretty simple.

Right, mainboard installed, PSU problem solved, watercooling is running... we can fire it up and are ready to go.

Even with all that messy wiring it still does look good huh?

Underneath the drive bays we can see the Power button and the power and HDD LED. There is no reset button to be found here. The LEDs are small yet clearly visible.

If you have some sort of lighting in your PC you can do really fun stuff.