Full custom watercooling loop on rather old midrange hardware.
The case was changed, the old hardware was put on water, and RGB lighting was added.
Asus ROG Strix B450-I Gaming
AMD Ryzen 5 2600X
Sapphire Radeon RX 590 Nitro+ "OC" 8GB
Corsair Vengeance LPX 32GB (2x16GB) DDR4 3200MHz C16
Sabrent Rocket 2TB PCIe 3.0 NVMe 3D TLC SSD
Corsair TX750M modded with new fan
New cooling hardware:
MetallicGear Neo-G Mini V2
Arctic F14 PWM, F12 PWM and P12 PWM
Aquacomputer QUADRO, high flow sensor and water temperature sensor
Bykski combo DDC pump+reservoir, CPU and GPU copper waterblocks, 240mm/40mm copper radiator, and all the fittings...
Mayhems Ultra Clear 10/16mm tubing
EK-CryoFuel Mystic Fog
New RGB hardware:
Aquacomputer farbwerk 360
Phanteks Halos Digital Lux
ARGB strips on the Bykski waterblocks and pump