AMD’s planned AM5 Raphael CPU socket looks to lack PCIe 5.0 functionality.

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The leak is the result of the Gigabyte ransomware attack.

According to TechPowerUp, AMD’s next generation CPU socket will not support PCIe 5.0. This information is said to have come from Gigabyte’s ransomware attack earlier this month. If Gigabyte didn’t pay up, the attackers threatened to disclose a vast quantity of material, including key AMD documents.

TechPowerUp’s sources familiar with the ransomware attack on Gigabyte provided them with a block diagram of the AM5 socket, showing its connections to other components. AM5 is the socket used for AMD’s upcoming Zen4 Ryzen 6000 CPUs, reportedly codenamed Raphael. The diagram shows many PCIe 4.0 connections, but none of which are 5.0.

Of the 28 PCIe 4.0 lanes in the diagram, 16 are devoted to discrete graphics, four to an m.2 slot for NVME, another four to a USB controller, and another four to the AM5 chipset.

When the RansomExx gang attacked Gigabyte, it threatened to release 112 GB of the company’s data unless it paid a ransom. This includes contacts between Gigabyte and Intel, AMD, and American Megatrends, some of which are still restricted by NDA.

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Earlier this week, CyberNews reported eRansomExx published around 7GB of that data on its website. According to the author of the post that leaked the two-part collection, the first section comprises AMD data – probably including the AM5 schematic – and the second part contains internal papers and the source code for Intel’s Manageability Commander.

AMD intends to release the Zen4 CPUs, coupled with the RDNA 3 graphics chips, next year. PCIe 5.0 will be supported by Intel’s future 12-generation “Alder Lake” CPUs, the first of which should be available later this year.


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