VR2-0416
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Compute Tray: Thermal - Line hint:
509
Context Before
Source: Nvidia VR NVL72 Component BoM and Power Budget Model ↗
Evidence
Hence, the cold plate will be attached at the L6 assembly level right after the PCBA process
Context After
Compute Tray: Power Delivery
At the compute tray level, 50VDC power enters the compute tray via the busbar clips at the back of the chassis. Then power travels to the middle of the chassis via the internal busbar cables. From the internal busbar cables, the power path is split into three destinations. The first and second path goes to the left and the right Strata Board, where the internal busbar cable feeds 50VDC power to the Strata Board directly. The third path goes to the power distribution module at the front of the chassis. 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. This differs from Grace Blackwell, where 50VDC power goes directly to the PDB. Then, the PDB feeds 12VDC to all the boards in the compute tray.
② Atomic Claim
因此 cold plate 會在 PCBA process 之後、L6 assembly level 就先安裝。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"attribute": "UNSPECIFIED_ATTRIBUTE",
"context_nodes": [
{
"id": "04_knowledge_base/PCBA",
"label": "PCBA"
}
],
"entity": {
"id": "04_knowledge_base/Cold plate",
"label": "cold plate"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [],
"value_text": "因此 cold plate 會在 PCBA process 之後、L6 assembly level 就先安裝。"
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| entity | cold plate | 04_knowledge_base/Cold plate |
| context_0 | PCBA | PCBA |
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。