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To study how chips really work, MIT researchers built their own operating system

The new "Fractal" operating system kernel, developed at MIT, gives researchers a clearer look at how computer chips work internally. It was used to study the branch predictors inside Apple's M1 processor, where it revealed a potential vulnerability to major speculative attacks.

To study how chips really work, MIT researchers built their own operating systemhttps://news.mit.edu/2026/to-study-how-chips-really-work-mit-researchers-built-their-own-operating-system-0610Open linkView original on piefed.social

AMD ‘had to re-engineer’ the Ryzen 7 5800X3D for a re-release — 10th Anniversary Edition chip had ‘a whole body of engineering work’ put into it

cross-posted from: https://lemmy.today/post/55011369

AMD’s David McAfee, VP and general manager of Radeon and Ryzen, says that “a whole body of engineering work” went into the re-release, as the original bonding process TSMC used for the Ryzen 7 5800X3D was no longer available.

[...]

“It completely changed the characteristics of how those two pieces of silicon are bonded together and how they were stacked together, and so when that first-gen facility really kind of went offline, then it meant there was a whole, you know, body of engineering work that had to be done to understand if we could even migrate the 5800X3D to the new, second-generation stacking process,” McAfee said.

Well, a facility that can handle that process going offline explains why the processor stopped being produced even though it's been in high demand for a while.

AMD ‘had to re-engineer’ the Ryzen 7 5800X3D for a re-release — 10th Anniversary Edition chip had ‘a whole body of engineering work’ put into ithttps://www.tomshardware.com/pc-components/cpus/amd-had-to-re-engineer-the-ryzen-7-5800x3d-for-a-re-release-10th-anniversary-edition-chip-had-a-whole-body-of-engineering-work-put-into-itOpen linkView original on lemmy.today