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Welcome to the home of the CBC (The Comic Book Cast)
Example memory pin functions:
Despite having 1331 pins, many are VSS (Ground) or VDD (Power) for signal integrity. am4 pinout
are available in AMD’s confidential BIOS and hardware design guides (NDA only). Publicly, community-documented pinouts exist for specific motherboard models. Example memory pin functions: Despite having 1331 pins,
| Feature | Detail | |---------|--------| | | PGA (Pin Grid Array) – pins are on the CPU | | Pins | 1331 pins (often referred to as Socket AM4, 1331) | | Pin Arrangement | 32×32 grid with missing pins in central area | | Pitch | 1.0 mm | | Keying | One corner has a missing pin (triangle marker) | | Feature | Detail | |---------|--------| | |
TR-2024-AM4-01 Date: October 26, 2023 Subject: Pin Configuration, Layout Analysis, and Functional Zoning of the AM4 PGA Interface
One of the notable aspects of the AM4 socket is its compatibility with multiple generations of Ryzen processors. However, this compatibility often requires BIOS updates on the motherboard to support newer processor models. The socket supports a wide range of chipsets, from the X470 and B450 to the newer X570 and B550, each offering different features and capabilities.