Aquacomputer Cuplex Kryos NEXT sTRX4 FC - Acryl (21820)

The Aquacomputer Cuplex Kryos NEXT sTRX4 FC - Acryl (21820) is a full cover CPU water block for AMD sockets sTRX4 and sTR5/SP6. It has an acrylic glass case in a black anodized aluminum frame, a nickel-plated copper base and 15 built-in addressable RGBpx LEDs.

Properties

Sockets

sTR5, SP6, sTRX4, sWRX8, TR4, SP3

Top

Acrylic glass, frame aluminum, black anodized

Base

Copper, nickel-plated

Ports

2x G1/4, 69 mm distance between threads

Dimensions

approx. 117 x 77 x 16 mm (without screws)

Full cover for third generation Threadripper

As already mentioned in the name, FC means Full Cover: the copper base covers the entire processor. Aquacomputer adapted the block to the revised chip layout of the third generation of Threadripper CPUs. Thermal energy is concentrated in certain areas of the chip, so an optimized internal coolant flow aims maximum cooling performance at the areas where it is generated.

Base part with microstructure

All parts are CNC machined at Aqua Computer's headquarters in Germany. The huge cooling structure covers 51 x 45 mm and has the finest structure size that Aqua Computer has to offer, a spacing of less than 0.2 mm. Aquacomputer names it as one reason for what it calls exceptional cooling performance. The contact area is machined with increased precision, polished, then nickel plated.

Retention system and thermal paste

Aquacomputer calls the mounting system ingenious, and it makes installation look very easy. On the processor, retractable springs and screws with a defined stop ensure even contact pressure. Thanks to the Kryonaut heat conducting paste from Thermal Grizzly, 1 gram in a syringe with a plastic spatula, the assembly is efficiently rounded off. The paste has a high thermal conductivity and, due to its low viscosity, spreads thin and evenly.

Acrylic glass and RGBpx lighting

In contrast to the metal parts, acrylic and RGBpx LEDs round off the optical system. The acrylic panel not only offers a view of the interior, but also lets the addressable lighting shine. The 15 LEDs sit below the frame and connect to an Aqua Computer device with an RGBpx output. The connector is on the long side, to the left, and a 50 cm RGBpx connection cable is included. Further RGBpx components can be added in a daisy chain on the short side connector.

Compatibility

Aquacomputer lists these products with an RGBpx output:

• D5 NEXT (41118)
• farbwerk 360 (53279)
• farbwerk nano (53280, 53281)
• OCTO (53286)
• QUADRO (53256)

For common motherboard headers for addressable LEDs there is a separate RGBpx adapter (53285).

What the loop needs

Two G1/4 threads take two fittings. Supply the coolant through the upper fitting: a reversed flow direction significantly decreases cooling performance. Aquacomputer requires Double Protect Ultra as the coolant, for corrosion inhibition.

Notes

• Run the water cooling system first with no other PC components on the mains supply, and check the block and fittings for leakages.
• Spread a thin layer of the grease with the spatula; seat each screw one or two revolutions, then tighten all four alternately.

In the box

• 1x Water block
• 1x Mounting material (screws, springs, etc.)
• 1x Thermal compound Thermal Grizzly Kryonaut, approx. 1 gram in syringe
• 1x Plastic spatula
• 1x RGBpx cable
• 1x Instruction manual

Aquacomputer's manual covers mounting, flow direction, the RGBpx connection and the approved coolant; the technical data and the scope of delivery are listed above.