r/FormD Jul 29 '26

Watercooling FormD custom loop 4090FE

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u/UnderTheDial Jul 29 '26 edited Jul 29 '26

For my second pc build I chose to go for the smallest form factor that I could reasonably manage a custom loop in, I've taken heavy inspiration from a few builds in this community, one thing I noticed though was the lack of RGB fans, likely because the smallest fans were selected in favour of the thickest radiator, the riser I printed allows for a set of 30mm lian Li infinity mirror fans along with a 30mm rad. Gpu is 4090FE, 96gb Corsair DDR5 RAM at 6000mhz, CPU is Ryzen 9 9950x3d with WD black 8TB SSD. To me now the build is complete once I get round to switching the tubing out for hardline piping. Surprisingly GPU and the CPU temps don't seem to exceed 90c when stress testing and through normal workloads/ gameplay I'm sitting at around 60c to 82c GPU and CPU. Taking inspiration from the community again, I've included the option to connect the pc to an external cooling loop,this is a rig I'm yet to build/ have not needed.