Introducing the EK-Quantum Momentum² ROG Maximus Z790 Extreme D-RGB – Special Edition, a premium Ultrablock-class product designed and produced by EK, the leading manufacturer of high-quality PC liquid cooling gear. This state-of-the-art product belongs to the Quantum Line and is specifically engineered for the ASUS® ROG Maximus Z790 Extreme motherboard, ensuring perfect compatibility.
Equipped with the award-winning EK-Quantum Velocity² cooling engine, it offers direct cooling for essential motherboard components, like the primary M.2 drive, while it also boasts numerous premium features, including:
- Direct connection to the Vector² GPU water block and Active Backplate Sets via bypass valves
- Temperature sensors
- Liquid flow meter
- Direct connection to the ROG water-cooling zone
- Optional direct die CPU cooling
It’s worth noting that this Momentum² monoblock is also EK–Matrix7 compliant.
Advanced Design
The EK-Quantum Momentum² ROG Maximus Z790 Extreme D-RGB – Special Edition is perfect for those who want to experience the very epitome of high-end liquid cooling technology. This exceptional monoblock represents the ultimate all-in-one solution, meticulously engineered to deliver outstanding cooling performance for a diverse range of CPUs, including the 13th Gen Intel® Core™ and 12th Gen Intel Core processors. Exclusively designed for the LGA 1700 socket-based ASUS ROG Maximus Z790 Extreme motherboard, the monoblock sets new standards across the water-cooling landscape.
This Ultrablock-class product is built from two parts. The first is a massive aluminum heatsink, CNC-machined from a massive aluminum brick of roughly 188mm x 167,5mm x 50mm in size. This heatsink is attached to and cooled by the second part of this product via thermal pads. The second part is the actual monoblock that brings a plethora of advanced features. The monoblock base is made of nickel-plated electrolytic copper, while the top is made of high-quality cast acrylic material.
The monoblock utilizes a reliable pogo-pin connection to the PCB found on the heatsink to ensure seamless integration with the motherboard and eliminate the need for additional cables, minimizing clutter in your setup.
The compatibility with delidded CPUs elevates its versatility, enabling you to unlock even greater performance capabilities and unleash your system’s full potential with this remarkable liquid cooling powerhouse.
This special edition EK monoblock takes cooling to the next level compared to a standard monoblock solution. Its intricate water block design offers optimal cooling for the CPU, Voltage Regulation Module (VRM), LAN controller, and primary m.2 drive, ensuring maximum stability and performance of these critical components. Furthermore, it comes equipped with a built-in integrated temperature sensor and a sensor for real-time measurement of coolant flow, providing valuable information for monitoring and fine-tuning the cooling system.
ROG Water-Cooling Zone
The EK-Quantum Momentum² ROG Maximus Z790 Extreme D-RGB offers a direct connection to the ROG water-cooling zone, allowing for seamless integration and the convenience of comprehensive parameter readouts from the ROG Water-Cooling Zone, providing essential information even for the most demanding users.
With all the relevant data easily accessible, you’ll have complete control over your liquid cooling setup. The monoblock features two integrated temperature sensors that precisely monitor both inlet and outlet temperatures, allowing accurate measurement of temperature differentials.
Additionally, the integrated flow sensor provides precise measurements of coolant flow, empowering you to fine-tune your pump speeds, resulting in the perfect balance between performance and acoustics.
Integrated Bypass Valves for More Loop Possibilities
The monoblock features four ports, two of which are equipped with integrated bypass valves. This innovative feature opens a world of new possibilities for your build, allowing you to choose from three different ways to build your setup and tailor it to your preferences.
Approach No. 1
In the first setup, the valves are closed, and the monoblock functions in a standard manner providing efficient cooling performance exclusively to the CPU.
However, removing the valve plugs allows you to unlock two alternative configurations that offer increased flexibility.
Approach No. 2
In the second setup, you can establish a direct connection between the monoblock and the EK-Quantum Vector² GPU water block. Coolant flows through the monoblock into the GPU block and through it back to the monoblock. It’s important to note that the ports are compatible with all EK GPU water blocks except for the Strix 40 series GPU blocks which require additional fittings – 2 x 21mm double rotary offsets plus a regular 90-degree rotary fitting.
Horizontal GPU mount
Regular (horizontal) setup is also compatible with Vector² Active Backplate Sets. It requires two 90-degree rotary adapters, two 14mm Male-Female extenders, and four fittings for Vector² GPU water blocks, and for ABP set no Male-Female extenders are needed. To use the ABP set, an additional product – EK-Quantum Momentum² ROG Maximus Z690/Z790 Extreme I/O Cover – Black is required.
Vertical GPU mount
Vertically mounting the ABP set is not supported. Vertical GPU water block setup requires 4x 90-degree rotary adapters, two 7mm Male-Female extenders, and four fittings for Vector² GPU water blocks.
This setup features one tube coming into the CPU monoblock inlet port, while the monoblock connects to the GPU block through the outlet bypass valve, and after that, the GPU water block connects to the distro plate. Additionally, this setup supports both vertical and regular-mounted GPUs and is also compatible with Vector² Active Backplate Sets in regular orientation. Again, no compatibility with vertically mounting the ABP set.
Approach No. 3
Alternatively, in the third approach, you can explore an alternative setup using a distribution plate, such as the Hyperion Distroplate, to create a captivating and intricate liquid cooling arrangement, adding a touch of uniqueness to your system.
This setup features one tube coming into the CPU monoblock inlet port, while the monoblock connects to the GPU block through the outlet bypass valve, and after that, the GPU water block connects to the distro plate. Additionally, this setup supports both vertical and regular-mounted GPUs and is also compatible with Vector² Active Backplate Sets in regular orientation. Again, no compatibility with vertically mounting the ABP set.
ANIME MATRIX™ LED DISPLAY Compatibility
The monoblock’s aftermarket heatsink perfectly accommodates the motherboard’s original ANIME MATRIX™ LED DISPLAY over the I/O shield. This thoughtful addition preserves the motherboard’s stunning lighting and enhances the overall aesthetic appeal of your Republic of Gamers motherboard.
Hybrid M.2 Cooling
The nickel-plated copper cold plate is in contact with the heatsink of the primary M.2 SSD, providing hybrid cooling to unlock your SSD’s full potential. The special plate acts as a heatsink for the SSD and is connected to the monoblock coldplate, which is actively cooled by the liquid passing through it, effectively making this a hybrid cooling solution for the SSD.
This hybrid cooling feature is integrated into the monoblock design; hence it does not require additional fittings or complex tube routings.
ILM Replacement Kit
The monoblock features the ILM replacement kit with a backplate and contact frame, which can be used to replace the motherboard’s stock ILM, bolstering the structural rigidity of the socket, motherboard, and even the CPU.
The replacement process is simple, involving the removal of a few screws to replace the ILM. Additionally, the kit allows for frame installation while keeping the CPU in the socket, protecting the pins from accidental damage.
Direct Die Kit and Delidding Compatibility
With this monoblock, you have the opportunity to transform your cooling into a direct-die type. This involves a process known as Delidding, where you remove the Integrated Heat Spreader (IHS) and cool the silicon die directly via your CPU water block. An LGA 1700 delidding tool is included in the package.
For enthusiasts seeking enhanced performance, this kit includes various components such as a replacement coldplate, protective foam, jetplate, a new set of screws, and a black-anodized backplate with an attached ILM Direct Die replacement frame. These elements work together to provide improved cooling capabilities and unlock the full potential of your CPU when using direct die cooling.
EK-Matrix7
The good news for true liquid cooling enthusiasts is that EK-Quantum Momentum² ROG Maximus Z790 Extreme D-RGB – Special Edition is an EK-Matrix7 compatible product.
The EK-Matrix7 product raster sets a new standard across the liquid-cooling landscape. With it, the EK is adding a new dimension to PC liquid cooling, where the height of products and the distance between ports are managed by increments of 7mm. This improves product alignment and reduces the time spent planning the loop and bending tubes – ultimately making the building process easier and more user-friendly.
EK-Quantum Momentum² ROG Maximus Z690/Z790 Extreme I/O Cover – Black
The elegant shield is meticulously crafted from black ELOX aluminum to seamlessly blend with your motherboard’s aesthetics. The purpose of this product is to replace the stock motherboard I/O cover and allow mounting of the Vector² ABP (Active Backplate) sets.
The I/O shield is fully compatible with ROG Maximus Z690/Z790 Extreme motherboards and the ROG Maximus Z690 Extreme Glacial.
For those seeking to use their GPU with an EK-Quantum Vector² ABP set on the above mentioned motherboards, the EK-Quantum Momentum² ROG Maximus Z690/Z790 Extreme I/O Cover will be available as a standalone product.
D-RGB LED Lighting
This product features rich D-RGB LED lighting that is compatible with ASUS Aura Sync RGB control software.
Availability and Pricing
The EK-Quantum Momentum² ROG Maximus Z790 Extreme D-RGB – Special Edition Ultrablock and I/O Cover are made in Slovenia, Europe, and are now available for pre-order through EK Webshop and Partner Reseller Network. These products will start shipping in mid-August 2023. The table below shows the manufacturer-suggested retail price (MSRP), VAT included.
| Name | MSRP (incl. VAT) | |
| EK-Quantum Momentum² ROG Maximus Z790 Extreme D-RGB – Special Edition | 799,90€ | |
| EK-Quantum Momentum² ROG Maximus Z690/Z790 Extreme I/O Cover – Black | 79,90€ |
