OCP MCRPS-Compliant Acoustic & Vibration Test Service
High-Power 48V Server PSU Noise and Structural Vibration Testing
In AI server and hyperscale data center architectures, high-power 48V power supplies have become critical infrastructure components.
The OCP Multi-Channel Redundant Power Supply (MCRPS) specification requires not only high efficiency and redundancy, but also controlled acoustic performance and structural stability under high load, high-speed fan operation, and dense rack environments.
Omniulabs provides professional third-party OCP MCRPS-compliant acoustic and vibration validation services, helping PSU manufacturers, server OEM/ODMs, and data center equipment providers perform design verification and risk evaluation.
What is OCP MCRPS ?
OCP Multi-Channel Redundant Power Supply (MCRPS) is a high-power 48V server power architecture specification defined by the Open Compute Project (OCP).
Key characteristics include:
- High output power (2kW to 5kW or higher)
- Multi-channel power architecture
- N+1 / N+N redundancy design
- High-speed fan cooling systems
- High-density rack integration
Under these conditions, fan noise and structural vibration become critical design challenges.
Why MCRPS Requires Professional Acoustic and Vibration Validation？
High-power PSU systems often encounter the following issues in real deployments:
- Narrowband tonal noise generated by high-speed fans
- Noticeable acoustic peaks in the 2–8 kHz frequency range
- Fan hunting caused by dynamic load changes
- Acoustic stacking when multiple PSUs operate simultaneously
- Structural resonance amplifying vibration
- Rack-transmitted vibration affecting overall system noise
Without proper engineering validation, these issues may lead to:
- Data center acoustic compliance failures
- Tonality complaints from customers
- Structural fatigue and reduced reliability
- Shortened fan lifespan
- Increased overall system noise
Our MCRPS Acoustic Testing Capabilities
Our testing services follow the Acoustic Requirements defined in the OCP HW Specification and applicable international standards.
Referenced standards include:
- ISO 7779
- ECMA-74
- ISO 3744 (for sound power measurements if required)
Acoustic Test Items
-
A-weighted sound pressure level (dBA) at 1 meter
-
Acoustic performance curves across load conditions (20%–100%)
-
Narrowband FFT spectrum analysis
-
Tonality evaluation
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Multi-PSU simultaneous operation testing
-
High inlet temperature testing conditions
-
Fan control behavior analysis
MCRPS Structural Vibration Validation
High-power PSU units may generate significant structural vibration, which can be amplified through rack structures.
Referenced vibration standards include:
- IEC 60068-2-6
- IEC 60068-2-64
- GR-63-CORE (for NEBS-related applications)
Vibration Analysis Scope
- Random vibration profile verification
- Operational vibration measurement under load
- Resonance frequency identification
- Accelerometer-based vibration analysis
- Shock and transient response analysis
- Structure-borne vibration evaluation
Operational Condition Validation
Testing scenarios include:
- 50% / 100% load conditions
- High inlet temperature environments
- Redundant mode vs full-load operation
- AI server dynamic load simulation
- Acoustic behavior analysis after rack installation
FAQ
Q: What is OCP MCRPS acoustic validation?
It is the engineering analysis and verification of noise & vibration performance for high-power 48V server PSUs under the OCP architecture.
Q: Why is tonal noise important in data centers?
Even if overall dBA levels meet limits, narrowband tonal peaks may still cause compliance issues or user complaints.
Q: Can multiple PSUs be tested simultaneously?
Yes. Rack-level simulation tests can be performed.
Q: Do you provide operational vibration testing?
Yes. Vibration validation can be conducted under real operating load conditions.
Contact Us
Start your OCP MCRPS validation today to ensure that your high-power 48V PSU meets data center requirements for acoustic performance and structural stability.
Contact Omniulabs for testing planning and technical consultation.
Email: service@omniulabs.com
Phone: +886-2-7730-6037
Address: 6F., No. 8-8, Ln. 169, Kangning St., Xizhi Dist., New Taipei City, Taiwan