Watercool HEATKILLER® IV PRO (AMD, AM4 ready) ACRYL CLEAN CPU Water Cooling Block

A CPU water block for AMD AM4 and AM5 with a clear acrylic top (PLEXIGLAS® GS) and a nickel-plated copper base. The Watercool HEATKILLER® IV PRO (AMD, AM4, AM5) ACRYL CLEAN is the PRO version of the block, mounts with Watercool's tool-free EasyMount system and takes 16/10 and 19/13 fittings.

Properties

• Sockets: AMD AM4, AM5
• Top: PLEXIGLAS GS / PMMA acrylic, clear
• Base: Nickel-plated copper
• Ports: 2x G1/4, 25 mm apart
• Size: 66 x 59 x 17 mm

The HEATKILLER IV series

"Made from enthusiasts for enthusiasts" is how Watercool describes the line. It places the water coolers of its HEATKILLER® CPU series among the most popular and top-selling CPU water coolers. Ever since the launch of the first HEATKILLER CPU water cooler in 2001, the series has been constantly improved and optimized. So far, the HEATKILLER® IV is the one that presents the most extensive alterations.

• Now even more powerful: thanks to a completely revised cooling structure, up to 3 °C temperature decrease compared to its predecessor
• Real high flow design: a bigger jet structure and receptacles give higher flow performance
• Improved reliability: no jet plate in the cooling structure, since the jet is now directly integrated into the cooler
• Mounting is a child's play with the tool-free Easy-Mount-System
• Improved fittings compatibility: the thread distance of 25 mm makes 16/10 and 19/13 fittings possible

Cooling structure and flow

The new cooling structure was the focus of innovation. Its finer micro fins greatly enlarge the contact surface of cooling liquid and cooler, while the flow characteristics became optimized as well. These changes increased the cooling performance by up to 3 °C over the predecessor. Supported by large-volume receptacles, the flow efficiency benefits too. The block features what Watercool calls a real high flow design, making it perfectly suitable also for lower performing pumps.

By the way, the cooling structure completely does without a separate jet plate. This improves the cooler's reliability, because less dust particles can accumulate within it.

EasyMount and fittings

The HEATKILLER® IV also comes up with an improved feature set, which includes the comfortable Easy-Mount-System. After the initial installation, the cooler can be mounted or de-mounted tool-free at any time, without the need to dismount the mainboard as well. The mounting brackets do now precisely define the contact pressure, thus mounting errors virtually do not appear.

If you prefer big fittings, you will be glad to hear of the enlarged distance between the two G1/4 threads, which is now 25 mm. This makes the block compatible with all common thread types up to the size of 19/13. Two ports means two fittings, for example 3/8" ID x 5/8" OD compression fittings (16/10) or 1/2" ID x 3/4" OD compression fittings (19/13).

The HEATKILLER® IV is a product "made in Germany", manufactured on what Watercool calls state-of-the-art CNC machines at the Watercool headquarters in Waren.

Notes

• Watercool's manual has a page of important information on the orientation of the block on the CPU; read it before you mount.
• Use the correct washers at the positions the manual shows: a metal washer between spring and mounting bracket, and the plastic spacer (4 mm on AM4, 5 mm on AM5). Tighten the studs and knurled nuts evenly and crosswise.

In the box

• HEATKILLER® IV PRO (AMD, AM4, AM5) ACRYL CLEAN
• Mounting Material
• Manual