Intro to LIQTech TR4 II With Threadripper Gen 2 on the horizon, CPU cooling is becoming a subject of importance. Enermax introduced the LIQTech TR4 as a solution for the large IHS on the chip. Now, AMD isn’t the only company with a redesign. The LIQTech TR4 II can support 500W+ TDP of cooling, which should help with overclocking as well. The pump has a 450 l/h flow rate, a huge amount for a CLC unit. All around, the features are great for Threadripper, but I theorize that these same features could improve cooling performance for all CLCs.