VR2R-0400_r1

VR2R-0400

① SA Source

• Source: 開啟完整 SA 文章
• Section: Compute Tray: Power Delivery
• Line hint: 334

Context Before

The internal busbar cables will feed 50VDC power to a busbar device that travels under the PCB midplane to connect to the power distribution board (PDB) on the other side of the PCB midplane.

Evidence

This differs from Grace Blackwell, where 50VDC power goes directly to the PDB.

Context After

Then, the PDB feeds 12VDC to all the boards in the compute tray.

② Atomic Claim

這與 Grace Blackwell 不同；在 Grace Blackwell 中，50VDC power 會直接送到 PDB。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/NVIDIA Grace",
        "label": "Grace"
      },
      "role": "reference_cpu"
    },
    {
      "node": {
        "id": "04_knowledge_base/Blackwell",
        "label": "Blackwell"
      },
      "role": "reference_gpu_generation"
    }
  ],
  "qualifiers": {
    "condition_text": "PDB is plain text in source claim; Grace Blackwell receives 50VDC directly at PDB",
    "numeric_mentions": [
      "50VDC"
    ],
    "temporal_mentions": []
  },
  "relation_type": "POWER_PATH_DIFFERS_FROM_GRACE_BLACKWELL"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
reference_cpu	Grace	04_knowledge_base/NVIDIA Grace
reference_gpu_generation	Blackwell	Blackwell

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。