AlexTzone
I design minimalistic – but not boring – PC stuff
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THOR ZONE
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That's good to hear it was given fixed, however 0.5-1mm does seem incredibly tight still. This might've been answered earlier, but was there any reason to keep 23mm of space under the mobo even though a 240mm aio proved to be less effective than a 120mm aio + air flow fan?
I understand the design drawings are finished so changes might be hard to push, but even if we dropped the mobo frame down a millimeter, that, in addition to your changes could give a ~2mm tolerance for the riser which feels a lot more comfortable. This would make the clearance under the mobo 22mm, which might lose support for the Silverstone TD02-slim (22mm rad) due to zero fit tolerance but it still keeps support for the XSPC TX radiator series (20mm) for those who really want to push for their own custom 240mm cooling solutions.
It may seem tight, but leads to big reduction in friction ? Previous distance was ~0, where a tolerance of +0.125mm meant noticeable friction (like in the prototype, where the riser had to be properly pushed in before inserting it into the Shell). 0.5-1mm clears the riser from the friction-zone, since that distance is larger than the worst-case tolerance scenario.
23mm under the mobo is a lot easier to work with, especially if you're not methodical about cable management.