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Buyer Beware: Certain AMD Ryzen B550 boards are stripping off PCIe 4.0 for only PCIe 3 – Neowin

PCIe lanes |by way of HP

At its Computex 2022 event, AMD’s CEO Dr. Lisa Su confirmed that the now 5-yr previous Socket AM4 will nonetheless be round for A wright hereas. While That is certainly a praiseworthy transfer, it appears like consumers will nonetheless Want to Watch out when buying for A mannequin new AM4 mcompletely differentboard.

That is as a Outcome of sure B550 chipset mcompletely differentboards are dropping PCIe 4.0 assist in favor of simply PCIe Gen3. The MSI Professional B550M-P GEN3 mannequin is one such mcompletely differentboard as noticed by Twitter consumer MEGAsizeGPU:

AMD launched PCIe 4.0 assist with its 500-collection mcompletely differentboards and each the flagship X570 and the primarystream B550 chipsets have formally been specced to assist PCIe Gen4. Solely the entry diploma A520 chipset Does not assist the 4th Gen PCIe regular.

The spec sheet of the MSI Professional B550M-P GEN3 mcompletely differentboard confirms that PCIe 4.0 assist is lacking on these boards:

We seemed round And located completely different MSI boards labelled as “Gen3” That are only PCIe 3.0. For event, right here is the spec sheet of a B550 GAMING GEN3 mannequin which additionally lacks PCIe Gen4:

While most graphics playing cards with The complete 16 lanes And even 8 lanes Ought to not be held again by the throughput provided by PCIe 3.0 (8Gbps), storage mannequins Might be handicapped significantly as NVMe know-how is shifting forward actually quick with PCIe 5.0 stuff …….

Source: https://www.neowin.net/news/buyer-beware-certain-amd-ryzen-b550-boards-are-stripping-off-pcie-40-for-only-pcie-3/

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