I cleaned my system, fitted the NVMe waterblock, re-seated my other blocks, and changed the fluid.
Pics:
Before (when it still had EK fans), showing the fluid, which was
Alphacool Eiswasser blue
Drained, you can see how the fluid has stained the distro plate, and completely discoloured the soft tubing (this is after running Mayhems Blitz through the system for around 18hrs)
I pulled the blocks apart and cleaned them with a toothbrush and deionised water, which got rid of most of the staining. Unfortunately, the distro plate cannot be disassembled as there are screws concealed under metal decoration which is glued to the acetal.
Comparison of old tubing (still fitted to the radiator) and new tubing (lying on top)
This is the Corsair Hydro X waterblock for NVMe drives:
And here it is mounted, just below the CPU. You can see the 45-degree fittings I'm using to loop from the drive to the CPU. I didn't want to do a straight route with 90-degree fittings because there's a Z-height difference which made the tube look weird. As it was, I ended up twisting the fittings to create a slightly longer run to give the pipe enough space to complete the 180 degree bend.
Here's the system with the new coolant,
EK Cryofuel Solid Fire Orange
And here with some lighting - my Lian Li fan controller has failed and I'm awaiting a replacement, which is why the fans are not lit up
You can't really see because it's blown out, but the RAM strips are orange at the outer edges with a white centre section. Overall, I'm really pleased with how it's turned out. I love the new colour.
Re-seating the blocks was a great plan. I've done a much better job of mounting the GPU block this time. So with the fans at 50%, and the system running mining software, fluid temp tops out at 36 deg C (11 degrees over ambient). GPU temps 45-55 degrees (-10 deg from prior) and the GPU hotspot (RAM) at 50 degrees (-55 degrees from prior), CPU at 50% load runs at 48 degrees C, and the NVMe drive is running at 38 deg (-14 deg from prior).
So, about 10hrs' work with all the draining, disassembly, flushing, cleaning, flushing, reassembly and refilling, but I'm really pleased with the outcomes, both visually and in terms of thermal performance.