Most generic pinout diagrams available online are low-resolution or contain errors regarding PCIe lanes and power delivery (VDDCR_CPU vs. VDDCR_SOC). Our (see below) has been verified against AMD’s confidential technical reference manuals and real-world multimeter readings from X470 and B550 motherboards.
: Unlike standard ground, these are critical for detecting if the CPU is properly seated and for precise voltage regulation. am4 pinout diagram exclusive