Intel Eagle Stream CPU cooling
Intel Eagle Stream CPU Liquid Cold Plate
Copper liquid cold plates for Intel Eagle Stream (4th/5th Gen Xeon) dual-CPU servers: two verified designs covering 350 W × 2 and 700 W × 2 configurations, TLP diffusion bonded, CFD validated before tooling and leak tested in production.
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Download datasheet (PDF)
Key specifications
| Model | T-HS202310 / T-HS202309 — Intel Eagle Stream CPU liquid cold plates |
|---|---|
| Heat dissipation | Variant 1: 350 W × 2 CPU · Variant 2: 700 W × 2 CPU |
| Material | Copper (red copper), CNC machined |
| Joining method | Transient liquid-phase (TLP) diffusion bonding |
| Test conditions | 25% EGW coolant, 40°C inlet temperature |
| Flow rate / pressure drop | 1–1.2 LPM at 16 kPa |
| Cold plate surface temperature | ≤52°C (350 W variant) / ≤64°C (700 W variant) |
| Working pressure | 1 MPa |
| Dimensions | 118 × 78 × 25 mm |
| Thermal resistance (plate, rated point) | ≤0.034 °C/W per CPU, both variants — calculated as (surface-temperature limit − coolant inlet) / heat load: (52 − 40)°C / 350 W and (64 − 40)°C / 700 W |
| ΔP–flow curve | Measured ΔP–flow curve is supplied with the prototype test report and DFM review — request it with your drawing |
| Wetted materials | Copper (C1100 / T2) channel and port surfaces; fittings, tubing and quick disconnects per customer specification — confirmed against your coolant during DFM |
| CAD / drawings | STEP model and 2D drawing available under NDA — request with your RFQ |
| Validation | CFD flow and thermal simulation; helium leak and proof-pressure testing |
Intel Eagle Stream CPU Liquid Cold Plate datasheet (PDF)
Full specification table, dimensions, coolant and test conditions, materials and joining method — ready to drop into your thermal review.
ToneCooling manufactures the Intel Eagle Stream CPU Liquid Cold Plate — Variant 1: 350 W × 2 CPU · Variant 2: 700 W × 2 CPU, CFD-validated before tooling and 100% leak tested under ISO 9001 at our Guangdong technical center, with North American customers supported by ToneCooling Texas LLC.
Why ToneCooling
Design, engineering, and manufacturing run in-house at the ToneCooling technical center in Guangdong — one accountable partner from CFD model to leak-tested hardware. Transient liquid-phase gives the assembly durable joints under repeated thermal cycling, and every part ships with the test documentation your qualification process needs. Prototype orders start at 5 pieces with a 7–15 business day lead time, so an evaluation unit reaches your lab fast.
Routine production testing
Acceptance criteria are agreed in writing before quotation, and the inspection results ship with the parts:
Leak testing (100% of units) — helium leak test to ≤1×10−9 mbar·L/s or nitrogen pressure-decay, per the agreed criteria.
Proof-pressure testing — to the project requirement, with burst verification on qualification samples.
Flow-resistance check — verified against the rated pressure-drop window at the specified flow rate.
Dimensional and flatness inspection — at the TIM interface, to drawing tolerances.
Bond inspection — diffusion-bonded parts are ultrasonically C-scanned per ASTM E2375; thermal-cycling qualification per IEC 60068-2-14 on qualification samples.
Real factory test report for the Eagle Stream plate (PDF)
Not a brochure — the actual quality-department inspection record: sealability test at 1 MPa / 5 min, bench-measured flow resistance with the calculation shown, test photos and inspector sign-off. The same report format ships with every order.
CFD validation before tooling
Before any metal is cut, the design is simulated against your operating point. The CFD model answers the questions that decide whether the plate survives qualification:
Channel layout — the flow path is placed over the die hot spots so the coldest coolant reaches the highest heat flux first.
Pressure drop — the channel network is tuned so the plate stays inside your pump budget at the rated 1–1.2 LPM flow.
Surface temperature — predicted case temperatures are checked against the ≤52°C (350 W variant) / ≤64°C (700 W variant) limit before the design is frozen.
The simulation report ships with the DFM review, and the prototype is then verified on the bench: measured ΔP–flow curve and thermal resistance against the CFD prediction, plus helium leak and proof-pressure testing.
Applications
Intel Eagle Stream (Sapphire Rapids / Emerald Rapids) dual-socket servers on direct-to-chip liquid cooling, from standard 350 W parts to 700 W high-TDP configurations.
Intel Eagle Stream CPU Liquid Cold Plate FAQ
Which variant do I need?
The 350 W × 2 design covers standard Eagle Stream parts; the 700 W × 2 design covers high-TDP configurations. Send your CPU SKU and the engineering team confirms the right plate.
Can I mix the 350 W and 700 W variants in one rack?
Yes — both share the 118 × 78 × 25 mm envelope and mounting, so trays stay common while the plate variant matches each node’s CPU SKU. SKUs are confirmed on the drawing during engineering review.
What does the 16 kPa rating include?
It is the plate-level pressure drop at 1–1.2 LPM; hoses, quick disconnects and the manifold add their own share in your loop calculation — measured set-level values ship with the prototype test report.
What coolant should be used?
Rated performance is tested with 25% EGW at 40°C inlet. Data-center loops following ASHRAE W55 water quality are supported; alternative mixtures are reviewed during DFM.
What flow rate does it need?
1–1.2 LPM at 16 kPa under rated load. Your pump budget and manifold layout are checked against this during engineering review.
Can the design be customized?
Yes. Port locations, hose routing, mounting pattern, and surface finish are customized from your drawings. CFD simulation validates the change before tooling.
What is the MOQ and lead time?
Prototype MOQ is 5 pieces with a 7–15 business day lead time from approved drawing and PO; production runs 4–6 weeks.
How is quality verified before shipment?
Helium leak testing and proof-pressure testing on the production line, plus flatness and dimensional checks to the acceptance criteria agreed in writing before quotation.
Request a quote
Send your drawing, heat map, coolant, and flow budget to info@tonecooling.com or use the quote form — the engineering team returns a manufacturable concept with the quotation. MOQ 5 pcs, prototype in 7–15 business days.
Send drawings for engineering review or download the datasheet (PDF)
