I Pumped Water Directly Onto a Running GPU - YouTube Watch On“In my pursuit of the perfect water block, I realized, why do we need metal at all?” “Why can't we just pump water directly over the bare silicon? It was measured up for a 3D printed water block which would direct the coolant directly over the GPU die. Stay On the Cutting Edge: Get the Tom's Hardware Newsletter Get Tom's Hardware's best news and in-depth reviews, straight to your inbox. Follow Tom's Hardware on Google News, or add us as a preferred source, to get our latest news, analysis, & reviews in your feeds.