VR2R-0485_r1

VR2R-0485

① SA Source

• Source: 開啟完整 SA 文章
• Section: Rack Level Infrastructure: Power Delivery
• Line hint: 404

Context Before

Evidence

In the GB200 article from 2024, we discussed the previous evolution on power delivery from node level PSU (power supply unit) to centralized rack level power shelf.

Context After

As VR NVL72 rack TDP reaches 180kW-220kW per rack from 120kW-140kW for GB200 and GB300, the power delivery infrastructure has evolved yet again. In the section below we will discuss the power delivery infrastructure at the rack level of the reference design and the power delivery at the compute tray level for VR NVL72.

② Atomic Claim

在 2024 年的 GB200 文章中，SemiAnalysis 討論過 power delivery 從 node-level PSU 演進到集中式 rack-level power shelf。

• Epistemic Mode: ASSERTED
• Mapping Status: COMPLETE

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/GB200",
        "label": "GB200"
      },
      "role": "platform_context"
    },
    {
      "node": {
        "id": "04_knowledge_base/PSU",
        "label": "PSU"
      },
      "role": "legacy_power_component"
    },
    {
      "node": {
        "id": "04_knowledge_base/Datacenter power shelf",
        "label": "power shelf"
      },
      "role": "centralized_power_component"
    }
  ],
  "qualifiers": {
    "condition_text": "described as prior evolution in the GB200 article",
    "numeric_mentions": [
      "2024"
    ],
    "temporal_mentions": [
      "2024"
    ]
  },
  "relation_type": "POWER_DELIVERY_EVOLVES_FROM_NODE_PSU_TO_RACK_POWER_SHELF"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
platform_context	GB200	GB200
legacy_power_component	PSU	PSU
centralized_power_component	power shelf	04_knowledge_base/Datacenter power shelf

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。