The AMD AM4 socket (PGA 1331) is one of the most successful CPU platforms in history, supporting multiple generations of Ryzen processors from 2016 through 2024. Unlike the newer AM5 socket, AM4 uses a Pin Grid Array (PGA) design, where the pins are located on the processor itself rather than the motherboard.
PCIe Lanes: Direct connections for high-speed components like discrete graphics cards and NVMe SSDs.
Resources: Detailed, community-leaked spreadsheets and AM4 Socket Diagrams can be used to identify exactly what function a damaged pin served. am4 pinout diagram exclusive
VDDCR_SOC: Voltage for the System-on-Chip (SoC) components, including the memory controller and integrated graphics.
has been the backbone of the Ryzen revolution, supporting generations of processors from the original 1000 series up to the powerhouse 5000 series. Whether you're a custom motherboard designer or a DIYer trying to rescue a CPU with a broken pin, understanding the "exclusive" pinout details is the key to mastering this platform. AM4 at a Glance Unlike the newer LGA (Land Grid Array) AM5 socket, AM4 uses PGA (Pin Grid Array) The AMD AM4 socket (PGA 1331) is one
THERMTRIP_L: A critical safety pin (A19) that triggers a shutdown if the CPU exceeds thermal limits. AZ_RST_L: Reset signal line for onboard audio. Practical Recovery & Repair
Legend:
VDDCR_SOC: Supplies power to the System-on-Chip (SoC) components, including the memory controller and integrated graphics.
This is the lifeblood of your processor. Whether you're a custom motherboard designer or a