VR2R-0274_r1

VR2R-0274

① SA Source

• Source: 開啟完整 SA 文章
• Section: Evolution from Blackwell
• Line hint: 238

Context Before

All of these modules in the VR NVL72 compute tray, while not exactly the same, are found in the compute tray of GB200/300. The only difference is the midplane module as it is a new component introduced to eliminate internal cables form the compute tray.

Evidence

Also, the modules at the front of the chassis (daughter modules) are much longer than their equivalent in Blackwell to connect the signal from the midplane to the front I/O ports via PCB.

Context After

In the sections below we will discuss the cableless design, the changes in thermal design, and the changes in mechanical design in the compute tray.

② Atomic Claim

此外，chassis 前端的 daughter modules 比 Blackwell 中的對應模組長得多，以便透過 PCB 把 midplane 的 signal 接到前端 I/O ports。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/Blackwell",
        "label": "Blackwell"
      },
      "role": "reference_generation"
    },
    {
      "node": {
        "id": "04_knowledge_base/Midplane",
        "label": "midplane"
      },
      "role": "source_interconnect"
    },
    {
      "node": {
        "id": "04_knowledge_base/PCB",
        "label": "PCB"
      },
      "role": "routing_medium"
    }
  ],
  "qualifiers": {
    "condition_text": "daughter modules and front I/O ports are plain text in source claim",
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "relation_type": "LONGER_DAUGHTER_MODULES_ROUTE_SIGNAL_TO_FRONT_IO"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
reference_generation	Blackwell	Blackwell
source_interconnect	midplane	Midplane
routing_medium	PCB	PCB

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。