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History / Hardware PCIe Subsystem

Revisions

  • Refer to Gen2 as what the unlocker does, not as a branch Gen2 shipped in master on 2026-07-29, so anyone who installs the unlock gets Gen2 and only a card with no unlock reports Gen1. The state tables readers use to identify their card still said 'after the Gen2 branch'. Rewrites those columns across the physical mods, PCIe subsystem, overview, status board, Gen3/Gen4, LLM inference, performance, P2P, glossary, troubleshooting and Gen2 pages. Also closes open question 1.7: reproduction of Gen2 at x16 is settled, so it now asks for the one thing still missing, error counters after days rather than 90 minutes. History pages are deliberately untouched. The branch lineage analysis, timeline and dead-ends record describe what happened on branches, and rewriting them would falsify the history rather than update the guidance.

    Consensus Protocol committed Jul 31, 2026
  • Convert 555 mkdocs admonitions to GitHub alerts GitHub wikis do not implement mkdocs '!!!' syntax, so every admonition on every page rendered as literal '!!! warning ...' text with its body flattened. GitHub does render its own alert blockquotes, verified on this wiki before converting. mkdocs's eight types collapse onto GitHub's five (note/info/abstract/question -> NOTE, tip/success -> TIP, warning -> WARNING, danger -> CAUTION). Custom titles have no slot in a GitHub alert, so each becomes a bold first line inside it. Also removes the temporary render-test page.

    Consensus Protocol committed Jul 31, 2026
  • Correct PCIe AC-coupling capacitor voltage rating: 6.3 V, not 16 V The BOM said "16 V or higher" with 10 V given as the loosest reported floor. Both figures were wrong. Ground truth is page 2 of the circulating a100-unlock.pdf, whose Component Inventory reads: 24pcs - 0402 Capacitor 6.3v .22uF - MAASJ105SB7224KFCA01 Twenty-four parts, matching the capacitor count exactly, from the x16 lane mod that demonstrably worked. Why this was missed: all four pages of that PDF are flat scanned images with no text layer, so the corpus extraction pulled zero characters from it and the wiki was built from the chat logs alone. Where the wrong numbers came from: - 16 V was an incidental property of the Samsung CL05B224KO5NNNC that a builder bought as a substitute. It was never a requirement. That part is now listed as a reported-working substitute rather than the canonical one. - 10 V traces to the CMP 100 guide, a different card, and was mislabelled here as a 170HX owner's floor. Removed. - The only 16 V part in the PDF's inventory is the 10 uF 0805 electrolytic for the VRM, unrelated to the PCIe lanes. Also records why 6.3 V is sufficient: these sit in series with a differential pair and PCIe bounds transmitter DC common mode to 3.6 V.

    Thanos420NoScope committed Jul 29, 2026
  • Publish CMP 170HX wiki: 55 pages plus sidebar Generated from the MkDocs source in docs/. Page content is byte-identical to the source apart from link targets, which are rewritten from relative paths to flat wiki page names. Navigation is in _Sidebar.md. Start at Home. Regenerate with to_github_wiki.py rather than editing pages here directly, so the wiki and the source in docs/ do not drift apart. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

    Consensus Protocol committed Jul 28, 2026