WATERCOOL HeatKiller GPU-X3 Core Layout and Design
GPU Water Block Layout
The WATERCOOL HeatKiller GPU-X3 Core GPU water block is a universal liquid cooling block. The four mounting screws in each of the four corners of the main GPU area are adjustable, meant to accommodate almost any GPU mounting configuration. The body is constructed of black POW material with capped coolant ports at the top of the block. The product name and corporate logo are clearly marked over bottom center of the block.
The back of the water block houses the copper mount plate and two additional uncapped coolant ports. All coolant ports are standard threaded G1/4 ports. The copper cooling plate is mounted to the POM body with six hex screws flush mounted through the base plate. The base plate itself has been sanded flat and polished to a mirror sheen, ensuring optimal mounting with the GPU core's surface. The hold down screws are held fast with metal nuts that fit into channels cut into the cooler's body at each corner along the outside of the copper base plate.
GPU Water Block Design
When taken apart, the HeatKiller GPU-X3 Core GPU water block is comprised of three main sections – the top port block, the main body, and the copper base plate. The top block and copper base plate are secured to the body with hex screws and sealed with rubber washers.
The unit's top block is constructed of black colored POM material, similar to the body piece. Top mounting screws fit into inset holes in the top of the block, making for a surface flush mount. The top of the block has the WATERCOOL corporate logo centered in white lettering. The bottom of the top block contains pass through holes for the mounting screws as well as inlet and outlet channels for the coolant passage.
The top of the block's main body has threaded holes to secure the mount screws for the top block and pass through holes of the coolant. An inset channel for the rubber washer surrounds the coolant holes to ensure liquid-tight mounting between the top block and main body.
The rear side of the block's main body has six threaded holes to secure the copper back plate to the body as well as pass through holes for the coolant. The liquid holes are elongated to force liquid evenly across the horizontal micro-channels cut into the upper surface of the copper base plate. Surrounding the coolant channels is an inset channel for the rubber washer to ensure a liquid-tight seal between the main body and the copper base plate.
The upper surface of the copper base plate contains a series of horizontal micro-channels cut into its surface. These micro-channels increase the cooling surface area to maximize the liquid coolants potential for heat absorption from the copper block. While micro-channels do add a certain amount of restriction to the coolant flow, they increase the velocity of the coolant through the channels because of the localized increase in pressure caused by the restriction.