Lab Companion Fast Temperature Change Chambers | Empower Reliability Testing for AI GPUs & Server Motherboards

Booming Shanghai AI Computing Industry Brings New Thermal Testing Challenges

As a core hub for AI chip R&D and computing infrastructure in China, Shanghai’s Zhangjiang and Caohejing industrial clusters have witnessed explosive growth in domestic high-performance AI chips. Since 2026, local leading enterprises have achieved remarkable market breakthroughs: Biren Technology has successfully listed on the Hong Kong Stock Exchange with an oversubscription ratio exceeding 2,300 times and a peak market value of HK$100 billion. Muxi Technology debuted on the STAR Market with a nearly 700% first-day surge, pushing its market value up to RMB 350 billion. OriginAI has completed IPO counseling and is accelerating its listing process. Three of China’s top four domestic GPU developers are rooted in Shanghai, forming a leading industrial cluster for high-end AI chip innovation.

The regional industrial advantages continue to expand. Hygon AI’s regional headquarters has settled in Pudong Zhangjiang, while Yuntiantianxin advances the industrialization of high-power inference chips. As Shanghai’s AI computing hardware rapidly upgrades in performance, extreme heat generation has become a critical bottleneck for reliability validation.

High-computing AI chips produce massive instantaneous heat during parallel computing tasks. Without rigorous thermal cycling verification in R&D and mass production phases, devices are prone to frequency reduction, performance degradation and premature hardware failure. Traditional thermal test equipment can no longer adapt to the high-power, large-scale, high-precision testing requirements of modern AI chips and server systems. To address these industry pain points, Lab Companion has developed high-acceleration fast temperature change chambers, delivering standardized, high-reliability environmental test solutions for global AI computing hardware manufacturers.

Three Core Testing Pain Points of High-Power AI Chips

Compared with traditional consumer electronics chips, AI GPUs, server motherboards and full rack servers feature ultra-high power consumption, severe thermal accumulation and oversized test specimens, bringing three major technical challenges to temperature cycling tests.

1. Severe Thermal Accumulation Causes Unstable Test Data

The thermal design power (TDP) of a single mainstream AI GPU reaches hundreds of watts. A multi-GPU server delivers a peak power consumption of over 10kW, while high-density racks exceed 50kW to 100kW — 3 to 5 times higher than traditional servers. During temperature cycling tests, the self-heating of DUTs (devices under test) distorts the internal temperature field of the chamber, causing significant deviations between the set temperature and the actual ambient temperature around specimens. This results in poor repeatability and authenticity of test data, failing to meet international reliability standards.

2. Traditional PID Control Leads to Temperature Overshoot & Specimen Damage

Qualified fast temperature change tests require smooth heating and cooling processes without overshoot or delay. However, conventional PID control struggles with high-heat-load AI devices. It provides insufficient power during heating and generates severe temperature overshoot when approaching the target value due to sudden heat release from high-power chips. Excessive temperature deviation not only violates IEC and JESD test specifications but also damages expensive engineering samples, raising R&D costs significantly.

3. Limited Chamber Volume Fails Full-System-Level Testing

Modern AI reliability testing has evolved from single IC testing to system-level verification of GPU motherboards, multi-GPU modules and complete server racks. Standard temperature change chambers cannot accommodate large-size DUTs. Forced placement blocks internal airflow, destroys temperature field uniformity, and fails to support full-system reliability validation for AI servers.

Lab Companion Core Technologies for High-Heat-Load AI Testing

Lab Companion TC/TH/ESS/CW series fast temperature change chambers are tailor-made for high-power, large-size AI computing hardware. With exclusive optimized control algorithms and structural design, the equipment supports full-scenario testing from single chips and modules to complete server racks.

1. Wide Temperature Rate Coverage with Linear & Non-Linear Modes

Lab Companion chambers feature a temperature range of-70℃ to +150℃, with temperature fluctuation ≤±0.5℃ and temperature deviation ≤±2℃. It supports multiple temperature change rates from 5℃/min to 25℃/min, with optional linear and nonlinear operation modes. Liquid nitrogen auxiliary cooling is available for ultra-fast cooling up to 30℃/min.

Linear temperature variation ensures constant and smooth temperature gradients, perfectly matching standardized compliance tests that require strict rate consistency. Nonlinear mode simulates real-world operating conditions such as equipment startup/shutdown and load fluctuation, reproducing actual thermal shock environments for more credible test results.

2. Patented Adaptive Thermal Load Control Algorithm Eliminates Overshoot

To solve the overshoot problem caused by high self-heating of AI chips, Lab Companion adopts a patented cold-end adaptive control system, upgrading traditional PID logic. The system collects real-time data from multiple temperature sensors inside the chamber and on specimen surfaces, dynamically identifies the real-time power load of DUTs, and intelligently adjusts compressor output and heater compensation to offset self-heat interference.

Even under high-speed temperature cycling above 15℃/min, the equipment achieves smooth temperature transition with strictly controlled overshoot range. It ensures the thermal stress applied to specimens fully complies with international standards, guaranteeing test accuracy and protecting high-value test samples.

3. Large Walk-In Chambers for Full-Rack System-Level Testing

Lab Companion walk-in fast temperature change chambers cover a volume range from 1m³ to 10m³, with customizable oversized dimensions to accommodate standard 42U AI server racks and complete system equipment. The series supports ultra-high thermal load testing, bearing 1,000kg aluminum ingots plus 50kW continuous heat load, with expandable load capacity for customized demands.

Equipped with a multi-point three-dimensional air supply system, high-power centrifugal fans and adjustable deflectors, the chamber forms a full-domain forced convection circulation. Under full-load conditions, the temperature uniformity ≤±1.5℃ and fluctuation ≤±0.5℃, fully meeting GJB and IEC requirements for large-scale specimen reliability testing.

4. Precise Humidity Control Prevents Condensation & Corrosion

Extreme temperature differences during AI chip thermal cycling easily cause surface condensation during temperature recovery, leading to short circuits, circuit corrosion and performance failure. Lab Companion’s integrated boiler humidification system provides accurate humidity control ranging from 20%RH to 98%RH, stably maintaining low humidity conditions of 45%RH at 0℃. It effectively eliminates condensation risks and ensures safe and stable testing of high-precision AI chips.

5. Independent Intelligent Control System with Full Data Traceability

Lab Companion’s self-developed C100 PID control system integrates fuzzy logic algorithms with bilingual (Chinese/English) visual operation interfaces for simple and efficient parameter configuration. The system automatically coordinates refrigeration, heating, dehumidification and humidification subsystems to achieve high-precision full-range temperature and humidity control. It supports intelligent fault self-diagnosis with real-time fault prompts and historical record storage for rapid maintenance.

Equipped with Ethernet and IoT remote monitoring functions, the equipment allows engineers to check operating status and test progress via mobile terminals anytime. All test data, temperature curves and fault records can be exported and backed up, fully complying with IATF 16949, ISO 17025, GJB and IEC data traceability standards.

Typical Application Scenarios for AI Computing Hardware

Scenario 1: GPU Motherboard Temperature Cycle Aging Test

A leading Shanghai AI chip designer conducted reliability verification for high-power GPU motherboards per the JESD22-A104 standard. Test conditions: -55℃ to +125℃, 15℃/min temperature rate, 1,000 thermal cycles. Adopting the Lab Companion TC-1000 fast temperature change chamber, the temperature overshoot was strictly controlled within ±0.5℃ with stable field uniformity. After 1,000 cycles, no cracking, welding failure or structural damage occurred on the GPU motherboard, completing successful reliability validation.

Scenario 2: AI Server Full System Temperature-Humidity Coupling Test

A server manufacturer performed extreme environmental reliability tests on fully loaded AI server racks. The test procedure included 48-hour high-temperature and high-humidity storage at 55℃/95%RH, 24-hour low-temperature storage at -20℃, and temperature recovery cycling. The Lab Companion CW2000 walk-in chamber easily accommodated standard 42U racks and supported external liquid cooling pipeline access for real-time monitoring of core hotspot temperatures. The equipment operated stably for over 300 hours without temperature anomalies or thermal load interference, verifying the long-term stability of server heat dissipation and overall structure.

Scenario 3: ESS Environmental Stress Screening for Multi-GPU Modules

An AI module manufacturer required 100% production-line stress screening to eliminate potential manufacturing defects. Lab Companion ESS series chambers adopt dual/triple-chamber alternating design, realizing seamless switching between testing, pre-heating and pre-cooling to match automated production rhythms. With 24 high-precision temperature acquisition channels, the equipment monitors the real surface temperature of each GPU chip, records temperature deviation data, and generates standardized test reports automatically, meeting strict quality control and traceability requirements for mass production.

Global Online Technical Support System

To serve global enterprise clients efficiently, Lab Companion adopts an online-first technical support system (no on-site door-to-door service for overseas users), providing full-cycle professional technical guarantee:

• Fast Remote Response: Professional technical teams provide remote diagnosis, operational guidance and fault troubleshooting with rapid response worldwide.

• Online Technical Training: Offer remote operational training, standardized SOP documents and customized testing process guidance to help teams master equipment operation quickly.

• Regular Remote Maintenance & Calibration Guidance: Provide periodic remote equipment inspection, calibration guidance and system optimization suggestions to ensure long-term high-precision operation.

• Complete Spare Parts Supply: Support global spare parts delivery and remote component replacement guidance to minimize equipment downtime.

Core Technical Advantages

Lab Companion fast temperature change chambers provide professional and reliable environmental test solutions for global AI chip and server manufacturers, with five core strengths:

• High Thermal Load Adaptability: Patented cold-end adjustment technology eliminates temperature overshoot under high-power load, ensuring precise testing and specimen safety.

• Flexible Temperature Change Rates: Support 5–25℃/min linear/nonlinear adjustable rates, up to 30℃/min with LN2 assistance, adapting to diverse international test standards.

• Full-Coverage Test Space: 1–10m³ large-capacity walk-in chambers support 50kW+ high thermal load for full-server-rack system-level testing.

• Independent & Intelligent System: Self-developed control system with full independent intellectual property rights, supporting remote monitoring and complete data traceability.

• Global Online Support: Professional remote technical team provides 24/7 online guidance, training and after-sales support for overseas clients.

Conclusion

With the continuous upgrading of global AI computing hardware, international standards for chip and server environmental reliability testing are becoming increasingly stringent. Lab Companion focuses on high-precision thermal testing technology, providing full-scenario reliability verification solutions from single chips and modules to complete server racks. By delivering stable, standardized and professional environmental test equipment and global online technical services, Lab Companion empowers global AI hardware enterprises to optimize product reliability and accelerate high-end industrialization development.