MSI’s refresh of its AMD 800-series motherboard lineup brings a critical, if understated, upgrade: a move from 32MB to 64MB BIOS chips. The MAG WiFi Motherboard Offers 5G LAN and White Aesthetic at $260 Price Point”>WiFi Motherboard Offers White Aesthetic and 5G LAN at a $260 Premium”>B850 Gaming Plus Max WiFi, a revision of the original non-“Max” model, embodies this change while presenting a striking visual overhaul. Priced at $260, this ATX motherboard aims to balance aesthetics with functionality for builders targeting AMD’s Ryzen 7000, 8000, and 9000 series processors, but its value proposition is challenged by component choices that feel dated for its price bracket.
Specifications and Packaging
The core specifications of the MAG B850 Gaming Plus Max WiFi remain consistent with its predecessor. It supports DDR5 memory with official overclocking profiles up to 8200+ MT/s, features one PCIe 5.0 x16 slot, and provides three M.2 slots (one PCIe 5.0 x4 and two PCIe 4.0). Networking is a standout, with a Realtek RTL8126 5G LAN controller and WiFi 7 with Bluetooth 5.4. The rear I/O includes 17 USB ports, though notably lacks any USB4 or 20 Gbps connections.
Unboxing reveals a standard accessory bundle. Included are a quick installation guide, one SATA cable, an EZ M.2 Clip II and its remover tool, a WiFi antenna, a 1-to-2 EZ Conn-Cable for combining fan and RGB headers, a front panel cable, and cable stickers. The absence of the more comprehensive 1-to-3 connector cable and the EZ front panel assembly found on higher-tier MSI boards is a minor but noticeable cost-cutting measure.
Design and Build Quality
MSI has flipped the script on the color scheme. Where the original model used a black PCB with white heatsinks, the Max version features a white PCB and matching white heatsinks, accented with sleek black diagonal lines. This creates a more cohesive and premium aesthetic, ideal for white-themed builds. The board maintains a clean look with no onboard RGB lighting, relying instead on dedicated headers for user-added lighting.
The construction uses a 6-layer PCB with 2oz copper, employing MSI’s “PCB Fabric Technology” to minimize signal loss. Protective features like overvoltage and overcurrent protection are present, as is MSI’s method for suppressing electromagnetic interference. A key addition is an external Base Clock (BCLK) generator, which allows for more granular overclocking of the CPU and memory without desynchronizing other system clocks.
Power Delivery and CPU Support
The motherboard uses the AM5 socket (LGA1718) and derives its power from a 12+2+1 phase design, with each phase rated for 50 amps. The choice of discrete MOSFETs, rather than the more modern and efficient DrMOS or SPS designs common at this price, is a point of contention. These components, identified as Sinpower SM4337 (high-side) and SM4503 (low-side) MOSFETs controlled by Richtek RT3672EE and RT3678BE PWMs, can run warmer and offer less overclocking headroom compared to integrated solutions.
Power enters via dual 8-pin EPS connectors using MSI’s solid-pin design. The accompanying VRM heatsinks use a stacked fin design with 7W/mK thermal pads but lack a connecting heatpipe. This setup is theoretically sufficient for even high-core-count Ryzen 9 chips, but thermal performance under sustained load may be a limiting factor for enthusiasts.
Memory, Expansion, and Storage
Four DDR5 DIMM slots support up to 256GB of RAM. While the board lists support for speeds up to 8200 MT/s, practical support aligns with AMD’s recommendations: 6000 MT/s to 6400 MT/s for optimal performance with Ryzen 7000/9000 series CPUs. The board supports CUDIMMs but only in a clock driver bypass mode that negates their primary speed benefit.
For expansion, the primary PCIe 5.0 x16 slot features an EZ PCIe release button for easier GPU installation but lacks steel reinforcement. Three secondary slots (one PCIe 4.0 x4 and two PCIe 3.0 x1) share bandwidth. Storage options are robust, with three M.2 slots and four SATA 6Gbps ports. However, cooling is only provided for the primary PCIe 5.0 M.2 slot via a single-sided heatsink with an EZ release clip. Users will need aftermarket solutions for other high-speed drives.
Connectivity and Audio
The networking suite is arguably the board’s most premium feature. The 5G LAN port offers multi-gigabit wired speeds, while the WiFi 7 and Bluetooth 5.4 module (requiring Windows 11 24H2) provides cutting-edge wireless connectivity. This contrasts sharply with the audio solution, which uses the aging Realtek ALC897 codec. While MSI’s “Audio Boost” implementation with dedicated PCB layers and high-quality capacitors may mitigate some limitations, the choice of codec is disappointing at this price, where competitors often offer the newer ALC4080 or 4082.
USB connectivity is plentiful but not cutting-edge. The 17 total ports lack any USB4 or 20 Gbps variants, with the fastest being 10 Gbps Type-A and Type-C ports. Internal connectors are comprehensive, including multiple fan and ARGB headers, a TPM header, and a unique Direct OC Jumper for BCLK adjustments via software. An extra 8-pin PCIe power connector supports the ATX 3.1 standard for additional GPU power excursion.
Performance and Thermals
In testing with a Ryzen 9 9950X, the board delivered performance perfectly in line with expectations for the platform. Synthetic benchmarks like Blender, Cinebench 2024, Corona, and V-Ray showed results consistent with other B850 boards. Gaming performance in titles like Cyberpunk 2077, Far Cry 6, and Starfield was also standard, indicating no performance penalty from the board’s design.
Power consumption was measured at 105W idle, 112W during gaming, and 355W under a full multi-core Cinebench load. The VRM temperatures, however, reached a peak of 64°C during stress testing, which is warmer than some competing offerings and can be attributed to the discrete MOSFET design. Boot times were a respectable 22 seconds in the test configuration.
Value and Competition
The MSI MAG B850 Gaming Plus Max WiFi occupies a challenging position in the market. Its $260 MSRP places it in direct competition with feature-rich boards from ASRock and MSI’s own B850 Tomahawk Max WiFi. The board’s strengths are its distinctive white aesthetics, the inclusion of 5G LAN, and several quality-of-life features like the EZ M.2 clips, PCIe release button, and BCLK generator.
Yet, these are counterbalanced by cost-cutting measures that are hard to ignore at this price: the discrete VRM design, the older ALC897 audio codec, the lack of high-speed USB, and limited M.2 cooling. For a builder committed to a white theme who specifically values 5G LAN, this board presents a viable, if not optimal, option. For those purely seeking performance or the most features per dollar, several competing motherboards offer more compelling packages, often with better power delivery, modern audio, and faster USB connectivity for similar or lower cost.
The motherboard succeeds as a cohesive component for a specific visual build and offers reliable, baseline AM5 platform performance. However, its stunted value becomes apparent when scrutinizing its individual parts against the asking price. It serves as a reminder that in the mid-range market, a compelling aesthetic and one or two premium features must be supported by a well-rounded specification sheet to truly justify the investment.
