VR2R-0413::SPLIT01
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Nvidia's Christmas Present: GB300 & B300 - Reasoning Inference, Amazon, Memory, Supply Chain - Line hint:
537
Context Before
Read full story ↗
Power sloshing between Vera and Rubin is still present, a feature carried over from GB300 that we covered in our article above. 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.
Evidence
For the modules at the front of chassis - CX-9,BlueField-4, and management - the PDB feeds 12VDC of power to each of the modules. 50VDC l down to 12VDC at the PDB then, via a coper busbar device, the PDB feeds 12VDC to its neighboring modules. The power connector of CX-9 is located near the Paladin HD2 at the top of the modules.
Context After
Compute Tray: Mechanical
The mechanical components of the VR NVL72 compute tray are slightly more sophisticated than that of the Grace Blackwell. At the front of the chassis, there is a mechanical structure that separates the front into three sections, with the left and right sections housing the Orchid modules and the middle sections housing the BlueField-4, the power delivery and the management modules. Each of the modules will also have a small metal chassis. The mechanical structure provides a simple guiding mechanism that guides the modules to a blind mate process with the midplane and the internal manifolds.
② Atomic Claim
The PDB supplies 12VDC to the front-chassis CX-9 module.
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"attribute": "PDB_POWER_DESTINATION",
"context_nodes": [
{
"id": "04_knowledge_base/ConnectX-9",
"label": "CX-9"
}
],
"entity": {
"id": "04_knowledge_base/VR NVL72",
"label": "VR NVL72"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [
"12VDC"
],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [
"12VDC"
],
"value_text": "The PDB supplies 12VDC to the front-chassis CX-9 module."
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| entity | VR NVL72 | 04_knowledge_base/VR NVL72 |
| context_0 | CX-9 | ConnectX-9 |
⑤ V2 Draft（需要修正時直接編輯）
Inline repair
只編輯以下三個 Draft 區塊。完成後將
review_action設為REQUEST_REPAIR，再手動執行 Repair Preview。
執行腳本前，Draft 不會寫入 Claim Store 或 Graph。
V2 Atomic Claim Draft
The PDB supplies 12VDC to the front-chassis CX-9 module.
V2 Semantic Frame Draft
{
"attribute": "PDB_POWER_DESTINATION",
"context_nodes": [
{
"id": "04_knowledge_base/ConnectX-9",
"label": "CX-9"
}
],
"entity": {
"id": "04_knowledge_base/VR NVL72",
"label": "VR NVL72"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [
"12VDC"
],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [
"12VDC"
],
"value_text": "The PDB supplies 12VDC to the front-chassis CX-9 module."
}
}V2 Revision Metadata Draft
{
"epistemic_mode": "ASSERTED",
"mapping_status": "COMPLETE"
}⑥ 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。