ASUS ROG Crosshair X870E Glacial: the new AM5 peak is an exercise in power and total white design

Over the years, ASUS's Glacial series has built a well-defined reputation: extreme, scenic, and technologically advanced products, often characterized by a total white design and oversized cooling solutions.

With the ROG Crosshair X870E Glacial, this philosophy decisively lands on the AMD platform, marking an important symbolic shift in a market that in recent years has seen Ryzen processors - especially the X3D variants - gain favor among enthusiasts.

Another gem from ASUS

This is not just a new model: with this motherboard, ASUS redefines the pinnacle of its AM5 offering, effectively replacing the previous Crosshair X870E Extreme as its flagship and inserting itself into the most exclusive segment of the market, where it competes directly with solutions like the MSI MEG X870E GODLIKE.

This motherboard likely represents one of the most ambitious proposals ever made for the AM5 socket. It is not just a high-end product but a true exercise in engineering style, capable of combining aesthetics and functionality in an almost extreme way.

The design is dominated by an icy white that covers practically every surface, accompanied by massive heatsinks, a complete backplate, and a sizable 5-inch LCD display integrated into the I/O shield, one of the largest ever seen on a motherboard. The non-touch panel is completely customizable via software and can display system parameters, animations, or custom content. Moreover, as you can see in the photos, the display can slide to the right to avoid obstructing the rear fan.

The construction is typical of a compromise-free product: E-ATX format, extensive use of removable magnetic elements to cover slots and connectors, and a backplate that not only stiffens the structure but also actively contributes to the cooling of VRM, chipset, and USB4 controller.

The technical specifications are equally impressive. Support for the latest generation Ryzen processors comes with a 24+2+2 phase power subsystem based on Infineon solutions rated for 110A, providing a theoretical capacity exceeding 2600A on the VCore: numbers that far exceed the needs even of enthusiast CPUs, but that guarantee ideal operating margins for extreme overclocking. Not surprisingly, the board offers a complete arsenal of tools for advanced tweaking, including onboard buttons, LN2 mode, measurement points, and a dual BIOS of 64 MB.

DDR5 memory officially reaches up to 256 GB, with frequencies that can go up to 9600 MT/s (depending on the CPU used), although support varies significantly between Ryzen 7000, 8000, and 9000, especially in terms of memory controllers and available PCIe lanes.

The management of PCIe lanes represents one of the most complex and interesting aspects of the platform. The Ryzen 7000/9000 processors provide 24 PCIe 5.0 lanes: 16 dedicated to graphics slots, 4 for USB4, and 4 for direct storage. These are complemented by the lanes offered by the dual Promontory21 chipset, typical of X870E solutions, which greatly expands possibilities but also introduces inevitable compromises.

Regarding expandability, there are two PCIe 5.0 x16 slots (configurable up to x16/x0 or x8/x8), but with significant limitations when using Ryzen 8000 CPUs, which considerably reduce bandwidth and the version of the standard. Notable is the presence of the PCIe 2-Way Release Switch system, which allows for physically releasing the installed GPUs in the two slots without manual intervention.

Storage is one of the most spectacular points of the Crosshair X870E Glacial. In addition to the three onboard M.2 slots (of which two are PCIe 5.0 with compatible CPUs), ASUS includes accessories like the ROG Hyper M.2 Card and the DIMM.2 module. In total, it is possible to accommodate up to seven M.2 SSDs, with a total capacity potentially exceeding 50 TB using high-density drives.

The Hyper M.2 Card allows for the installation of two PCIe 5.0 x4 SSDs but takes lanes from the GPU, reducing it to x8 operation. The DIMM.2 module, on the other hand, offers two PCIe 4.0 slots (one limited to x2), improving accessibility and cooling. Here as well, trade-offs related to resource sharing come into play, particularly with the USB4 controller.

Cooling attention is one of the distinctive traits of this model. ASUS has adopted imposing heatsinks, multiple heatpipes, and even a vapor chamber for the SSDs, along with more peculiar solutions like the fully tool-less RAM cooling system with a 55 mm magnetic fan powered by direct contacts. The result is generally excellent, although some lower areas of the board are less optimized.

Magnetic panels and peculiar solutions

From a construction standpoint, the Glacial introduces numerous solutions designed to enhance the user experience. Removable magnetic panels allow for hiding cables and connectors, maintaining a clean look without sacrificing accessibility. The PCIe Q-Release system simplifies GPU removal, while the AIO support via pogo-pin connector represents one of the most interesting innovations: a single contact point manages power, fans, and display of the new compatible ASUS solutions.

Connectivity matches the price range. It features two 10 Gbps Ethernet ports based on Realtek controllers, a choice debatable for some but consistent with the 'no compromise' philosophy. There’s also Wi-Fi 7 with a MediaTek module, Bluetooth 5.4, a very high number of USB ports (including USB4 at 40 Gbps and USB 3.2 Gen2x2 with Power Delivery up to 60W), and a high-end audio section with Realtek ALC4082 codec accompanied by ESS Sabre ES9219 DAC.

The UEFI firmware has also shown significant evolution. ASUS introduces a new graphical interface in light mode, with a redesigned EZ Mode, Essential Mode for quick access to main functions, and full Advanced Mode for overclocking. Also interesting is the new dashboard that allows for real-time visualization of connected devices and their operational status.

Naturally, there are some constraints derived directly from the platform, such as bandwidth sharing between PCIe slots and USB4 or restrictions on the simultaneous use of multiple PCIe 5.0 SSDs. Other aspects are more specific: the second slot of the DIMM.2 module limited to two lanes, the impact of the Hyper M.2 Card on the GPU, and certain choices like dual 10 Gbps Ethernet, which further increase complexity and cost.

A motherboard for demanding people

With a starting list price just above €1,000 and it can easily reach around €1,200 on the market, the ROG Crosshair X870E Glacial is clearly aimed at a niche of users who want the best without compromises and who have already built a system of equal stature.

In conclusion, we are looking at one of the most spectacular and complete motherboards ever made for the desktop market. The ROG Crosshair X870E Glacial is not only the highest point achieved by the AM5 platform but also a technological showcase that anticipates solutions and ideas that, in a more accessible form, we will likely see in future generations.