AMD engineers, during a tour of their lab, showed the Gamers Nexus YouTube channel interesting and somewhat unusual devices for testing the functionality of AMD 600-series chipsets for AM5 platform motherboards.
The devices shown are presented as expansion cards that can be stacked on top of each other, creating any configuration of input and output interfaces, thereby mimicking almost all AMD 600-series chipsets and their capabilities that motherboard manufacturers offer as part of their solutions. .
According to AMD engineers, these cards with chipsets are installed on a reference test platform (motherboard) with a socket AM5 processor socket, which does not have its own chipset, but is equipped with a PCIe slot. A similar expansion card is installed in it. Each of these expansion cards has an adapter at the top that allows you to install an additional expansion card with a different chipset, thus expanding the set of available external connectors supported by one or another set of AMD system logic. In addition, each expansion card with chipset is equipped with many different connectors. The set includes multiple SATA connectors, multiple versions of USB, M.2 for SSD, LAN and other ports.
A chipset add-on card makes testing the capabilities of the latest AM5 platform and Ryzen 7000 processors much easier. By using several of these add-on cards, AMD can simulate different I/O port configurations. For example, one card emulates the B650 and B650E chipsets, while two already embody the X670 and X670E chipsets. Engineers can perform performance checks on all of these configurations. In addition, these expansion cards allow AMD to test new chipsets without changing the main test platform (motherboard), which reduces the overall cost of development and increases its speed.
The most interesting thing is that these external chipset expansion cards can theoretically be stacked “infinitely” on top of each other, creating more complex I/O configurations that are not officially foreseen in the AM5 platform standards. AMD hasn’t explained exactly how many such expansion cards can be stacked on top of each other, but apparently the limitations only relate to the capabilities of the PCIe 4.0 interface through which they connect.
AMD’s multi-chipset approach used by the AM5 platform (the same X670 and X670E are nothing more than two B650s installed on the motherboard and connected in series) has already won the hearts of some manufacturers. For example, ASRock previously unveiled a prototype PCIe expansion card that allows you to turn an AMD B650 motherboard into a more advanced AMD X670 motherboard. While this product has not yet gone on sale and it is not known if it will.
It has also been previously reported that AMD initially considered using a vapor chamber in the lids of the Ryzen 7000 processors, but ultimately abandoned the idea.