VRM Analysis
The X870-P WiFi is an ATX motherboard featuring a standard 8-layer PCB, typical of most boards in this form factor. Despite being a more mid-range offering compared to higher-end models, it boasts a robust 14+2+1 phase design, which ensures solid performance for both gaming and productivity tasks.
The power delivery is handled by the Infineon ASP2308 PWM controller, which is tailored for boards with slightly fewer phases but still offers excellent efficiency and stability. Unlike some of the higher-end ASP2205 or ASP2206 controllers used on premium boards, the ASP2308 focuses on delivering reliable power at a more cost-effective level, making it a great choice for this tier. It ensures clean and stable voltage regulation, supporting both overclocking and demanding workloads without compromising system stability.
For all power phases, ASUS has opted for the Vishay SiC629 80A power stages. These power stages integrate the driver IC and MOSFETs into a single package, reducing the footprint and improving thermal efficiency. This setup not only simplifies the board’s layout but also enhances power efficiency by reducing electrical resistance, resulting in lower heat output. This is especially useful for a 14-phase VRM configuration, as it maintains a balance between performance and cooling, which is essential for ensuring long-term reliability.
As in many other ASUS boards, the Richtek RT3672EE synchronous buck controller handles the miscellaneous phases. This controller, known for its precision, ensures the various components on the board receive stable power, and it remains a go-to solution in ASUS’s motherboard lineup due to its compatibility with AMD’s SVI3 requirements.
