VR2R-0156
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Rubin Oberon Rack: NVL72 not NVL144 nor NVL36 - Line hint:
125
Context Before
The key difference between the Blackwell and Rubin Oberon architecture is the number of SKUs offered to customers. As Blackwell Oberon was the first ever mass deployment of a rack scale solution with rack power density over 100KW for the GB200 NVL72 SKU, many datacenters did not have the infrastructure ready to support 100kw+ per rack. Nvidia offered two SKUs of Blackwell Oberon: GB200 NVL72 and GB200 NVL36x2.
Evidence
The latter being a lower density SKU offered for customers who did not have the infra ready to handle the thermals of a single high density rack.
Context After
Unlike Blackwell, Rubin is only offered in the VR NVL72 SKU. The set up is very similar to that of GB200/GB300 NVL72. Each VR NVL72 system consists of:
② Atomic Claim
後者是較低 density 的 SKU，提供給 infrastructure 尚無法處理單一 high-density rack thermal load 的 customers。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "The latter 指涉 VR2R-0155 的 GB200 NVL36x2",
"numeric_mentions": [],
"temporal_mentions": []
},
"reason": "LATTER_REFERS_TO_NON_CANONICAL_GB200_NVL36X2",
"statement": "GB200 NVL36x2 是 lower-density SKU，面向無法支援 single high-density rack thermals 的 customers。"
}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。