VR2R-0449
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Rack Level Infrastructure: Thermal - Line hint:
378
Context Before
The pressure envelope is expected to be unchanged versus GB200, with maximum operating pressure of 72 psig (5 bar) and minimum burst pressure of 217 psig (15 bar), aligning with OCP’s MGX rack-level liquid-cooling specification.
Evidence
In practice, cooling follows straightforward physics.
Context After
To cool a system, you must deliver sufficient water/coolant at the appropriate temperature and pressure through the loop. If you want to increase the cooling capacity of a CDU, you increase flow rate while managing pressure, which in this case implies around a 2.0-2.5x flow increase, depending on how far outlet temperatures are actually pushed by operators.
② Atomic Claim
實務上，cooling 遵循直接的物理原理。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"reason": "GENERAL_COOLING_PHYSICS_STATEMENT_WITHOUT_CANONICAL_ENTITY",
"statement": "In practice, cooling follows straightforward physics."
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| — | — | — |
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。