TAOKE Thermal — Active Semiconductor Cooling Base for NVIDIA DGX Spark
TAOKE Thermal is an active semiconductor (thermoelectric) cooling base designed for NVIDIA DGX Spark. A copper cold plate sits directly under the chassis and is driven by a 300 W-class TEC module with forced-air heat rejection, while a closed-loop industrial controller holds a target temperature you set — instead of simply reacting to whatever the ambient air allows.
The mounting concept is deliberately non-invasive: a widened black-anodized tray, a 4 mm bent-aluminum side clamp tightened by two M4 screws, and zero blockage of the front intake, rear exhaust and bottom fan intakes.
| Product | TAOKE Thermal active cooling base |
| Designed for | NVIDIA DGX Spark (150 × 150 × 50.5 mm) |
| Cooling method | TEC (Peltier) active cooling + forced-air heat rejection |
| TEC module | 300 W class, 48 VDC (ENMG HETD-153-300-48VDC cold-plate module) |
| Controller | ENMG ETC80-HB, H-bridge, RS485 Modbus RTU |
| Tray | 180 × 420 × 7 mm, black anodized aluminum |
| Clamp | 4 mm bent aluminum, ~65 g, 2 × M4 |
| Front / rear blockage | 0% (ports and handles fully accessible) |
| Assembly height | Approx. 159 mm |
| Status | Engineering evaluation stage — controlled A/B testing in progress |
Why Active Semiconductor Cooling
Air alone hits a physical limit
A compact AI machine running sustained workloads eventually warms the air around it. Once chassis exhaust approaches ambient-plus, passive metal and airflow can only hold a difference — they cannot push surface temperature below ambient.
Full power is not the answer either
Running a TEC flat-out wastes energy and risks condensation. Real thermal control needs modulation, not an on/off switch.
Control is the answer
TAOKE Thermal treats cooling as a control problem: measure, decide, modulate — with a hardware safety layer underneath.
Thermal Architecture — From Conduction to Active Cooling
Heat path
| 1 · Spread | Widened cold plate under the DGX Spark chassis |
| 2 · Pump | TEC modules actively move heat across the plate |
| 3 · Reject | Dual high-static-pressure fans exhaust from the base |
| 4 · Sense | Cold-side, hot-side, ambient temperature and humidity inputs |
Design notes
The base does not rely on the DGX Spark bottom surface as a primary heat path — the machine's own front-to-back airflow stays exactly as designed. The cold plate adds a parallel active path that can hold the chassis base near a target temperature.
All airflow entries (front foam intake, rear exhaust, bottom fan intakes) remain open. The assembly adds no obstruction to the machine's native cooling.
Intelligent Temperature Control
ETC80-HB TEC controller — appearance rendering, black anodized finish. Shipped unit may differ.
Industrial TEC controller (ENMG ETC80-HB)
| Type | H-bridge MOSFET, PWM power modulation |
| Drive capacity | 48 V / 30 A class output stage |
| Communication | RS485, Modbus RTU 9600 8N1 |
| Command range | −1000‰ to +1000‰ (negative = cooling) |
| Control | 1 kHz PWM + continuous PID, 500 ms cycle |
| Protection | E1−E2 ≥ 5.0 °C interlock, sensor-failure cutoff |
Four-layer control stack
| Layer 1 · Hardware | Controller built-in protections (always on) |
| Layer 2 · Local loop | Controller PID holds the setpoint |
| Layer 3 · Host feed-forward | Our program previews workload and pre-positions temperature (in development) |
| Layer 4 · Adaptive strategy | Learning-based scheduling (planned) |
Engineering guardrails (hard-coded in software)
Dew-point guard: TEC power is capped so the cold plate never approaches the ambient dew point. Fan-failure interlock: TEC output is disabled when airflow stops. Ramp-rate limits and sensor plausibility checks run before any command is sent.
Mechanical Design — Ports Stay Free
Clamp that leaves your ports alone
| Front / rear blockage | 0% — cables, handles and airflow untouched |
| Installation | Two M4 screws into the widened tray ears |
| Clamp | 4 mm bent aluminum (Ω shape), ~65 g |
| Contact | Silicone-lined cross bar presses the DGX top edge |
| Adjustment | Slotted holes allow ±2.25 mm alignment |
| Tray finish | Black anodized aluminum, 180 × 420 × 7 mm |
Why side clamping
The DGX Spark needs its front panel for intake, its rear for exhaust and I/O, and its bottom for fan intake. That leaves only the left and right edges for mechanical retention — so the clamp is a lightweight bent-aluminum bridge pressing down on the top edge from the sides, keeping every original airflow path untouched.
No drilling, no adhesive, no chassis modification. Removing the machine takes under a minute.
Condensation Protection
Cooler is not always better. Smarter cooling is.
Pushing a surface below the ambient dew point condenses water — directly onto electronics. TAOKE Thermal reads ambient temperature and humidity, computes the dew point, and treats it as a hard ceiling for how far the cold plate may go.
| Inputs | Ambient temperature, ambient humidity, cold-side temperature |
| Method | Magnus dew-point approximation, evaluated continuously |
| Action | TEC power capped before the cold side approaches dew point |
| Status | Software dew-point guard — in development, shipping with firmware V1 |
This is also why the product does not chase maximum cooling: the goal is a stable, safe, controllable temperature — not the lowest number on a screen.
Six-Layer Protection
| TEC over-current | Hardware current limit on the controller output stage |
| Hot-side over-temperature | TEC output reduced/cut when the heat-rejection side exceeds limits |
| Sensor failure | Implausible or missing sensor readings disable TEC output |
| Fan failure | Airflow loss triggers a TEC shutdown interlock |
| Communication failure | Host link loss falls back to the controller's local closed loop |
| Condensation risk | Dew-point guard caps cold-side target (see above) |
Layer 1–2 are implemented in the ETC80-HB controller hardware; layer 3–6 logic ships with the TAOKE Thermal control software.
Specifications
| Product name | TAOKE Thermal active semiconductor cooling base |
| Designed for | NVIDIA DGX Spark (GB10, 150 × 150 × 50.5 mm, TDP 140 W) |
| Cooling principle | TEC (Peltier) active cooling with closed-loop modulation |
| Cold-plate module | ENMG HETD-153-300-48VDC, 150 × 400 mm cold plate, 300 W class |
| Rated electricals | 48 VDC, TEC 8.5 A + fans; independent 48 V PSU required (≥500 W recommended) |
| Controller | ENMG ETC80-HB, RS485 Modbus RTU |
| Temperature inputs | Cold side, hot side, ambient temperature, ambient humidity |
| Tray | 180 × 420 × 7 mm black anodized aluminum, ~1.43 kg |
| Side clamp | 4 mm bent aluminum, ~65 g, 2 × M4 |
| Silicone pad | 1.5 mm contact padding |
| Assembly height | Approx. 159 mm total |
| Front / rear clearance | Fully unobstructed |
| Host software | Monitoring dashboard + thermal agent (in development) |
| Measured performance | To be published after controlled A/B testing |
Roadmap
Available now
| Hardware | Cooling base, tray, side clamp, silicone pad |
| Controller | ETC80-HB + RS485 wiring, local closed-loop control |
| Safety | Hardware protection layer + fan/TEC interlock |
In development
| V1 Software | Host dashboard: live temperatures, TEC duty, dew-point guard |
| A/B data | Controlled stock-vs-TAOKE comparison on identical workloads |
Planned
| V2 Smart Thermal | Workload-aware feed-forward cooling |
| AI Thermal Agent | Load recognition, predictive cooling, health trending |
Frequently Asked Questions
Is this officially certified or endorsed by NVIDIA?
No. TAOKE Thermal is an independent third-party accessory. NVIDIA and DGX Spark are trademarks of NVIDIA Corporation; this product is not affiliated with, sponsored or endorsed by NVIDIA. Compatibility is described as “designed for NVIDIA DGX Spark” only.
Do I need to open or modify my DGX Spark?
No. The machine rests on the tray and is held by a side clamp with two M4 screws. No drilling, no adhesive, no chassis modification, fully reversible.
Will it block any ports or airflow?
No. The clamp attaches from the left and right edges only. Front intake, rear exhaust and I/O, and bottom fan intakes remain fully open.
Can it cause condensation?
Condensation is managed, not ignored: the controller and host software compute the ambient dew point and cap cooling before the cold surface can reach it.
How much cooler will my machine run?
We do not publish unverified numbers. Controlled A/B benchmark data (identical workload, ambient and power) will be published on this page once testing completes.
Interested in TAOKE Thermal?
Engineering samples are available for evaluation partners. Tell us about your DGX Spark workload and we will get back to you.
Contact UsTrademark notice: NVIDIA and DGX Spark are trademarks of NVIDIA Corporation. TAOKE Thermal is an independent accessory designed for NVIDIA DGX Spark and is not affiliated with, sponsored or endorsed by NVIDIA. Product appearance and specifications may change during development; performance figures are published only after controlled testing.