VR2R-0284_r1

VR2R-0284

① SA Source

• Source: 開啟完整 SA 文章
• Section: Replacing Internal Cables with Board-to-Board Connectors
• Line hint: 250

Context Before

For the GB200/300, the most valuable cable that is exclusively supplied by Amphenol is the DensiLink OverPass cable set within the compute tray. This cable provides the ethernet connection between the CX-7/8 NIC and the OSFP cages. However, this cable is extremely vulnerable to scratches and damage of the cable termination during assembly, thereby creating many points of failure.

Evidence

There are also several other lower-end PCIe cables in use (MCIO and SlimSAS) that also suffer from the same points of failure.

Context After

These cables involve many other suppliers as well—complicating procurement and vendor management. Given the delicate nature of the cable, workers must be extremely careful while placing the cables in a very dense and compact chassis, which prolongs assembly time.

② Atomic Claim

另外也使用多種較低階的 PCIe cables（MCIO、SlimSAS），同樣存在這些 failure points。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "attribute": "CABLE_ASSEMBLY_FAILURE_POINTS",
  "context_nodes": [],
  "entity": {
    "id": "04_knowledge_base/PCIe",
    "label": "PCIe"
  },
  "frame_type": "ATTRIBUTE",
  "qualifiers": {
    "condition_text": "MCIO and SlimSAS are plain text in source claim",
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "value": {
    "numeric_mentions": [],
    "value_text": "lower-end PCIe cables such as MCIO and SlimSAS suffer from the same failure points."
  }
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
entity	PCIe	PCIe

⑤ Human Review

請在 Properties 逐項確認：

• 原文 → Atomic Claim 是否忠實
• Atomic Claim → Semantic Frame 是否忠實
• Canonical Entity mapping 是否正確
• Epistemic mode 是否保留原文語氣
• 最後選擇 review_action

Review state

Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。