Am4 Pinout Diagram Exclusive

AM4 socket

The (also known as PGA 1331) is a OPGA (micro-Pin Grid Array) interface featuring exactly 1,331 pins . Unlike the newer LGA-based AM5, AM4 places the pins directly on the underside of the processor, making the pinout diagram a critical reference for diagnosing broken or bent pins. Exclusive Pin Map Breakdown

Data Lines (DQ):

AM4 supports dual-channel DDR4 memory. The pinout includes dedicated lines for: For actual data transfer. am4 pinout diagram exclusive

6.1 Minimum signals for POST (excluding power)

Key Signal Groups (by pin region)

technology. This means the 1,331 pins are located on the CPU itself, making it more robust against motherboard damage but more susceptible to "bent pin" disasters during installation. The Anatomy of the 1,331 Pins While a standard AM4 Pinout Diagram AM4 socket The (also known as PGA 1331)

Step 3 – Verify with the diagram.

After straightening, compare the pin height to its neighbor. For example, pin A1 (VSS) should be exactly level with pin A2 (VDDCR_SOC). A height difference of 0.5mm will cause no contact. Pins: Scattered near the edge (e

• Pins: Scattered near the edge (e.g., pin B2, Y3).
• Function: 1.8V for PLL (Phase-Locked Loop) clock generation; 3.3V for standby power (SB). If your motherboard RGB lights turn on but the CPU fan doesn’t spin, check the VDD33 standby pin for damage.

🧩 What is a Pinout Diagram?

| Use | Lanes | Pin range | Notes | |------------|------------|----------------|-------------------------------------| | PEG (x16) | 16 lanes | D1–D10, C1–C6 | Direct to PCIe x16 slot 0 | | M.2 CPU | 4 lanes | B1–B4 | For primary NVMe (CPU direct) | | GPP (chipset) | 4 lanes | A31–A35 | To X370/B350/X470/B550/A520 FCH |