VR2R-0409_r1

VR2R-0409

① SA Source

• Source: 開啟完整 SA 文章
• Section: Compute Tray: Power Delivery
• Line hint: 340

Context Before

As the Strata board draws around 4800W of power (equivalent to the TDP of half a general server rack) versus Bianca at 3000W, it is necessary to deliver power to the board at a higher voltage. The benefit of moving 50VDC-12VDC conversion closer is to the reduce current and increase transmission efficiency. 96 Amps at 50V has 17x lower power loss than 400A at 12V due to the quadratic relationship between power loss and current.

Evidence

Power sloshing between Vera and Rubin is still present, a feature carried over from GB300.

Context After

This enables more efficient power planning by sharing the 4800W provided amongst both GPU and CPU. In GPU demanding loads, 2300W goes to each GPU leaving 200W for the CPU. Vera can then dynamically boost to higher power when GPU demand drops to help minimize GPU idle time while not overprovisioning power.

② Atomic Claim

Vera 與 Rubin 之間仍保留 power sloshing，這項 feature 從 GB300 延續而來。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/Vera Rubin",
        "label": "Rubin"
      },
      "role": "accelerator"
    },
    {
      "node": {
        "id": "04_knowledge_base/GB300",
        "label": "GB300"
      },
      "role": "reference_system"
    }
  ],
  "qualifiers": {
    "condition_text": "Vera is plain text in this source claim",
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "relation_type": "POWER_SLOSHING_CARRIED_OVER_FROM_GB300"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
accelerator	Rubin	04_knowledge_base/Vera Rubin
reference_system	GB300	GB300

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。