10/14/2026
AIO or custom loop: what does water cooling actually cost?
An AIO is the cheapest, simplest way to water cool a CPU. Pump, block and radiator come in one sealed unit, it installs like an air cooler, and ours start at $39.99.
A custom loop built from parts starts around $316 for a CPU loop, every part in stock: a HEATKILLER IV BASIC block, an Alphacool NexXxoS ST30 360mm radiator, an Eisstation DDC pump and reservoir, 16/10mm tubing, six compression fittings and a liter of ModWater. Add a current-gen GPU block and it comes to about $576.
The loop costs more, and in return it cools your graphics card, lets you pick every part, and grows with your build.
Want the middle ground? Alphacool Eisbaer AIOs have a quick-lock on one hose, so you can add a GPU block or another radiator later.
The guide has the full parts list with links, plus where to save and where to spend. Want us to check your parts list? Send it over and we will make sure it all fits together.
https://modmymods.com/news/aio-or-custom-loop-water-cooling-cost/?utm_source=facebook&utm_medium=social&utm_campaign=guide-aio-loop