Thermal diode pins that monitor CPU temperature and trigger emergency shutdowns if the processor overheats.
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AMD AM4 socket features a Pin Grid Array (PGA) design with 1,331 pins am4 pinout diagram
Because an interactive visual grid of 1,331 individual points is highly complex, the AM4 pinout map is traditionally broken down into distinct functional zones. The processor's pins are indexed using an alphanumeric coordinate system (Rows A to AZ, Columns 1 to 39), excluding letters that could cause confusion like I, O, Q, and U.
1.0mm (the distance from the center of one pin to the center of the next). Thermal diode pins that monitor CPU temperature and
Having a pinout diagram is not just for academic interest; it has several real-world applications:
Dedicated to the primary discrete graphics card slot (x16). 4 Lanes: Dedicated to the primary M.2 NVMe SSD slot. If you share with third parties, their policies apply
An AM4 pinout diagram is a visual map showing the function of each of the 1,331 pins on AMD’s AM4 processor socket. Introduced in 2016, the AM4 platform supports multiple generations of Ryzen CPUs and APUs. Understanding this grid layout is essential for hardware developers, custom builders, and technicians diagnosing broken or bent pins.
These pins handle high-speed communication with your graphics card and NVMe SSDs. Most AM4 CPUs provide 24 PCIe lanes (16 for GPU, 4 for NVMe, and 4 for the chipset).
These pins handle clock speeds, resets, and error checks. Why Do People Need the Diagram?
| Pin ID | Signal name | Type | Purpose | |--------|---------------|-----------|-----------------------------| | H3 | VDD | Power | Core voltage (cluster) | | L3 | VSOC | Power | SoC voltage | | AL6 | SVI2_SCLK | I/O | VRM clock | | AL7 | SVI2_SDATA | I/O | VRM data | | AN4 | THERMTRIP_L | Output | Overheat shutdown (active low) | | AJ10 | REFCLK_CPU_P | Clock | 100MHz diff pair (+) | | AJ11 | REFCLK_CPU_N | Clock | 100MHz diff pair (-) | | A3 | DQ0 | I/O | DDR4 channel A, bit 0 | | U1 | PCIE_TX0_P | Output | PCIe lane 0, positive |