[ TOP OF CPU - TRIANGLE INDICATOR AT TOP-LEFT ] +---------------------------------------------+ | █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ | <- Power Delivery (VCC / VDD) | █ █ █ █ | | █ [ DDR4 MEMORY CHANNEL A MEMORY ] █ | <- RAM Control Zone | █ █ | | █ [ DDR4 MEMORY CHANNEL B MEMORY ] █ | | █ █ | | █ [ PCI EXPRESS GEN 3 / GEN 4 ] █ | <- High-Speed Graphics / NVMe | █ █ | | █ [ CHIPSET I/O / USB / AZALIA ] █ | <- Peripheral Connectivity | █ █ █ █ | | █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ | <- Ground Plane (VSS) +---------------------------------------------+ 1. Core Power Delivery (VDDCR_CPU / VDDCR_SOC) Delivers raw electrical power to processing cores.
Today, we are releasing an breakdown. Whether you are a repair technician diagnosing a bent pin, a modder attempting a direct-die cooling setup, or an engineer designing a custom SBC, this guide will map every voltage rail, data lane, and ground pin on AMD’s most successful socket. am4 pinout diagram exclusive
The AM4 platform provides 24 PCIe lanes directly from the CPU. The pinout diagram maps these into: [ TOP OF CPU - TRIANGLE INDICATOR AT
Not all pin breaks result in a dead system. The severity depends entirely on the functional zone of the damaged pin: The pinout diagram maps these into: Not all
Specialized users may use the pinout to find sense pins (like VSS_SENSE_B ) to get highly accurate voltage readings directly from the CPU. Socket Layout Characteristics
design. Unlike Intel’s Land Grid Array (LGA), the 1,331 pins are located on the processor itself, while the contact points are on the motherboard socket. Key Pin Functional Groups
Reading Time: 12 minutes