Disabled PCIe devices (sysfs enable==0) carry no data traffic; their link state has no operational impact. Switchtec PCIe switch management endpoints on NVIDIA HGX H100 baseboards (and similar fabric controllers) train at reduced speed intentionally and were producing spurious warnings. Check is vendor-agnostic: reads enable attribute via existing helper, no vendor/device ID hardcoding. Documented in bible-local/decisions/2026-06-12-pcie-disabled-device-link-warning.md. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Architectural Decision Log
One file per decision, named YYYY-MM-DD-short-topic.md.
| Date | Decision | Status |
|---|---|---|
| 2026-03-05 | Use NVIDIA proprietary driver | active |
| 2026-04-01 | Treat memtest as explicit ISO content | active |
| 2026-04-29 | Treat embedded submodules as read-only | active |
| 2026-06-12 | Skip PCIe link-speed warnings for disabled devices | active |