Your setup is exactly what I'm planning to build down to the mobo, RAM, AIO, and GPU so you're giving me hope. I didn't want to return the Tridents so I was wondering if the AIO tubes would fit by routing them up towards the mobo-side fan followed by pinching them between the RAM and AIO fan. I ordered a couple of Noctua 12x15 fans to maximize that overhead space. Three questions:
1) Would you be able to share pics along the path of the tubes near the RAM, fans, and PSU as well as the orientation of the block (I think I get yours but want to be sure)?
2) Do you think that I'd get extra clearance from the low profile fans?
3) You mentioned that the radiator is sitting freely. If you could mount it, would it be to the top panel with protruding screw caps? Would a low profile fan allow for secured mounting by brackets?
Sorry I didn't see this earlier. Been running for a month now without problems
1. Don't have any pics right now, as I'm waiting for a 3080 to come in so I can do a final 'complete' showcase. The tubes actually fit on the right side closest to the ram going upwards, and just over the ram locking hinges. So out the right side of the block, directly upward along the trident sticks, then right across the hinges, dipping downward then back upward. I didn't use the long rad brackets, just the smaller ones as the right one interfered with the pump port. On second though, could have gone the long rad support on the GPU side, and shorter one on the PSU side of the case (I think, might consider this when I put the new GPU in to screw down the rad properly).
2. Fan above the mobo closest to the power cable can be a 25mm fan, no problems. HEAPS of clearance. Fan below the radiator is a low profile, and I would be using that TBH. I believe you can use a stock 25mm unit, but the clearances made it a little bit tight given how I currently have the tubes routed ram side, and not shroud side (buckling of cables etc).
3. I actually saw that its possible to mount it via the top, but avoided it for aesthetic purposes. its close enough that it doesn't annoy me.
Depending on your cable management, I might also suggest a slim fan filter for both fans. Dirty little VRM cable likes to hit the 25mm fan from memory unless taped down properly, and some of the power cables out of the PSU like to creep occasionally. I tied them all down so it's not an issue, but if I were to clean it up i'd go that way in future.