MojoKid writes: "Over the last few years an increasing number of liquid coolers have been positioned as high-end alternatives to traditional heatsink and fan combinations. This has been particularly true in the boutique and high-end PC market, where a number of manufacturers now offer liquid coolers in one form or another. These kits are a far cry from the water coolers enthusiasts have been building for years. DIY water coolers typically involve separate reservoirs and external pumps. The systems tested here, including Intel's OEM cooler that was released with their Sandy Bridge-E CPU, contain significantly less fluid and use small pumps directly integrated into the cooling block as a self-contained solution. Integrated all-in-one kits may not offer the theoretical performance of a high-end home-built system, but they're vastly easier to install and require virtually no maintenance. The tradeoffs are more than fair, provided that the coolers perform as advertised."