This motherboard offers compelling features like PCIe 4.0 and dual M.2 slots at a competitive price, but significant user-reported issues temper its recommendation. With a 4.6/5 rating from over 5,500 reviews, it's generally well-received for its VRM cooling and user-friendly BIOS. However, critical complaints regarding BIOS flashback failures, port malfunctions, and boot instability suggest potential buyers should proceed with caution or consider alternatives.
Specifications
| Spec | Value |
|---|---|
| Form Factor | ATX |
| Socket | AM4 |
| RAM Slots | 4 |
| M.2 Slots | 2 (1x Gen4, 1x Gen3) |
| PCIe 4.0 Support | Yes |
| Wi-Fi | No |
In-Depth Analysis
When considering a new PC build, the motherboard is the central nervous system, dictating compatibility, expansion, and overall performance. For AMD's AM4 platform, the B550 chipset often represents the sweet spot for value, balancing features like PCIe 4.0 with affordability. The MSI MPG B550 GAMING PLUS motherboard aims to capture this market with its 'Gaming Plus' branding, suggesting a focus on gamers seeking performance and aesthetics. We've analysed this board and found it presents a compelling package on paper, featuring dual M.2 slots, DDR4 Boost for high-speed memory, and an enhanced thermal solution. In our assessment, the strengths of the MPG B550 GAMING PLUS are clear. The VRM (Voltage Regulator Module) and associated heatsinks are notably substantial for its price bracket. Our team found these capable of handling high-end Ryzen CPUs, including the power-hungry 5900X and 5950X, without significant thermal throttling. This is a crucial factor for users who might upgrade their CPU down the line. Furthermore, MSI's Click BIOS 5 interface is generally considered user-friendly. We found it relatively intuitive for navigating settings, updating the BIOS (when it works), and configuring system parameters, which is a definite plus for builders of all experience levels. The inclusion of PCIe 4.0 support on the primary GPU slot and for one M.2 slot also future-proofs the build for faster graphics cards and NVMe SSDs. However, our deep dive into user feedback and technical reports revealed significant concerns that cannot be overlooked. A recurring and critical issue is the failure of the BIOS Flashback feature when attempting to use it with 3rd generation Ryzen (Zen 3) processors, such as the popular Ryzen 5 5600X. Despite following guides meticulously, multiple users reported that the flashback function simply did not work, leaving them unable to update the BIOS to a compatible version without resorting to an older CPU. This is a major hurdle for anyone building a new system with a Zen 3 chip or upgrading to one.
Beyond the BIOS, other hardware malfunctions have been reported. Users have encountered intermittent issues with the HDMI port, where connected monitors would flicker or disappear, with the DisplayPort proving more reliable. More troublingly, the primary M.2 slot, which is connected directly to the CPU for maximum bandwidth, has been found non-functional by some, forcing them to use the secondary slot. We've also seen reports of complete boot failures, including systems powering on with no POST (Power-On Self-Test), dead silence when a CPU is installed, and memory failing to operate in dual-channel mode, leading to system instability or failure to boot. Compounding these hardware concerns, one critical review noted the board's 4-layer PCB construction, which is less than the recommended 6 layers for high-performance boards. This can potentially lead to higher PCB temperatures, reduced VRM lifespan, and interference affecting audio quality. This brings us to the value proposition. When comparing the MPG B550 GAMING PLUS to its stablemate, the MSI B550-A PRO, the differences become apparent primarily in aesthetics. Users and reviewers often note that the B550-A PRO is virtually identical in terms of its Printed Circuit Board (PCB) layout and BIOS functionality. The 'A PRO' variant typically foregoes the more aggressive 'gamer' styling and RGB accents, often resulting in a lower price point. For builders prioritising raw functionality and cost savings over visual flair, the B550-A PRO presents a stronger argument for the 'best bang for buck' in this segment, offering nearly the same core experience for less. Ultimately, the MSI MPG B550 GAMING PLUS offers a feature set that competes well in the mid-range B550 market. Its solid VRMs and good cooling are commendable, and the BIOS is generally easy to use. However, the prevalence of critical issues, particularly the BIOS Flashback failures with Zen 3 CPUs and various boot instabilities, cannot be ignored. While the board might serve some users adequately, the risk of encountering these problems is significant. If aesthetics are secondary, we strongly recommend considering the MSI B550-A PRO, or a comparable board from ASUS or Gigabyte, to potentially avoid these common pitfalls. Building a PC is an investment, and ensuring stability from the start is paramount, especially when pairing with a powerful component like the MSI MAG A750GL PCIE5 Power Supply Unit.
