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The AM5 Mycro Direct-Die RGB from Thermal Grizzly is a direct-die water cooler for AMD's Ryzen 7000 processors. As the name suggests, the water cooler lies directly on the chiplets of the delidded CPU. Micro fins on the top of the nickel-plated copper cooler are used for optimal transfer of waste heat. Via G1/4-inch connections, the AM5 Mycro Direct-Die RGB is integrated into the circuit of a custom water cooling system. A visually sophisticated appearance is provided by the anodized aluminum cover. Addressable RGB LEDs under the cover visually round off the high-performance water cooler.
Nickel-plated copper radiator with microfin structure
The AM5 Mycro Direct-Die RGB replaces both the motherboard's Socket Actuation Mechanism (SAM) and the heatspreader of the Ryzen 7000 processor. Thus, the processor has to be delidded. On the significantly larger surface of the nickel-plated copper heatspreader compared to the stock heatspreader, there are optimized microfins that dissipate the waste heat extremely effectively into the water circuit of the custom cooling. At the same time, an optimal contact pressure of the CPU into the socket is enabled.
- Water cooler for direct die mounting
- Microfin cooler made of nickel-plated copper
- Replaces SAM and heatspreader
- Anodized aluminum cover
- Addressable RGB lighting
- G1/4 inch connections
- Only for delidded CPUs!
Addressable RGB lighting & stylish cover
On top of the copper cooler, the Mycro Direct-Die RGB has a block of acrylic glass in which the G1/4-inch connections are located. The acrylic glass is subjected to an annealing process after milling. This frees the acrylic glass from internal surface stresses. This ensures that no stress cracks form in the acrylic glass even after a long period of use, as can happen with tempered acrylic glass. The RGB LED lighting is located under the anodized aluminum cover and consists of 13 addressable LEDs. The cable plugs into the 3-pin ARGB header (+5V/- DATA/GND) of the motherboard. The cover of the cooler is magnetically attached to the acrylic block and can be oriented so that the RGB connection cable is either at the top or bottom. The black anodized aluminum cover is visually accentuated by metallic chamfers on the edges.
Maximum cooling performance
In tests**, the AM5 Mycro Direct die RGB in combination with Conductonaut Extreme could establish itself as the high-end solution with the best temperatures. A Ryzen 7900X (5.0 GHz, 1.3 vCore) was cooled down to 64 °Celsius under load during testing. Compared to an everyday solution in the form of a 280 mm AiO, temperatures could be lowered by up to 26 °Celsius in comparable test sections. A comparable water cooler reached via Direct-Die temperatures that were 3 °Celsius higher than the AM5 Mycro Direct-Die. The AM5 Mycro Direct-Die RGB's nickel-plated surface is compatible with traditional thermal pastes and gallium-based liquid metals. The nickel forms a barrier layer between the liquid metal and the copper cooler, preventing liquid metal from diffusing into the copper and minimizing alloying. As a result, multiple applications of liquid metal are generally not necessary. For the lowest maintenance system possible, a KryoSheet graphene thermal pad can be used as the thermal interface between the CPU and the AM5 Mycro Direct Die RGB. Since KryoSheet pads are electrically conductive, a cover is included to protect the electronic components on the CPU package. Temperatures below 70 °Celsius were measured with a KryoSheet in the tests**.**It should be noted that the temperature improvements achieved depend on several factors. Besides the quality of the individual processors ("Silicon Lottery"), test results are influenced by the room temperature and the cooling used, among other things. For an AiO, for example, the cooling performance depends on factors like the pump speed as well as the fans used. The values given are guidelines that can be higher or lower in individual cases.
Scope of Delivery
- 1x AM5 Mycro Direct-Die
- 1x test certificate
- 4x screw
- 1x angle wrench
- 1x Insulation sheet
|Lighting:||digital aRGB LEDs|
|Material:||Acrylic, Aluminium, Nickel-plated copper|