1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your OEM Supermicro PWS-201-1H Power Supply. This internal power supply is designed to deliver stable and efficient power to compatible computer systems, featuring 80 PLUS efficiency and active Power Factor Correction (PFC). It operates within an AC input range of 100-240 V and provides 200 Watts of output power.
Please read this manual thoroughly before installation and keep it for future reference.
2. Safety Information
WARNING: Electrical shock hazard. Always disconnect power before installing or servicing the power supply.
- Ensure the power supply is installed by qualified personnel.
- Do not operate the power supply in wet or damp conditions.
- Do not open the power supply casing. There are no user-serviceable parts inside. Opening the unit will void the warranty.
- Verify that the input voltage range (100-240 V AC) is compatible with your local power grid.
- Ensure proper grounding to prevent electrical hazards.
- Avoid blocking ventilation openings to prevent overheating.
3. Setup and Installation
- Preparation:
- Turn off and unplug your computer system from the wall outlet.
- Open the computer case according to its manufacturer's instructions.
- If replacing an existing power supply, carefully disconnect all cables from the motherboard, graphics card, drives, and other components. Remove the old power supply.
- Mounting the Power Supply:
- Insert the PWS-201-1H power supply into the designated power supply bay in your computer chassis. This model is designed for rack-mountable systems, specifically 1HE (1U) form factor.
- Secure the power supply with the appropriate screws provided with your chassis or power supply.
- Connecting Cables:
- Connect the main 24-pin ATX power connector to the motherboard.
- Connect the 4+4 pin (8-pin) EPS12V CPU power connector to the motherboard.
- Connect SATA power connectors to your storage drives (HDDs, SSDs).
- Connect PCIe power connectors (if applicable) to your graphics card(s).
- Ensure all connections are firm and correctly seated. Do not force connectors.
- Final Steps:
- Organize cables to ensure proper airflow within the chassis.
- Close the computer case.
- Connect the AC power cord to the power supply and then to a grounded wall outlet.
4. Operation
Once properly installed and connected, the PWS-201-1H power supply will provide stable DC power to your computer components. It features an 80 PLUS efficiency rating, indicating high energy efficiency, and active Power Factor Correction (PFC) for improved power quality and reduced energy waste.
- Turn on your computer system using the power button on the chassis.
- The power supply will automatically adjust to the input voltage within its specified range (100-240 V AC).
- Monitor your system for stable operation.
5. Maintenance
The PWS-201-1H power supply is designed for reliable, long-term operation with minimal maintenance. However, periodic checks can help ensure optimal performance and longevity.
- Dust Removal: Periodically, and with the system powered off and unplugged, use compressed air to gently clear dust from the power supply's fan and ventilation grilles. Excessive dust can impede airflow and lead to overheating.
- Cable Management: Ensure internal cables are neatly managed and do not obstruct airflow.
- Environmental Conditions: Operate the power supply in a clean, dry environment with adequate ventilation. Avoid extreme temperatures.
Do not attempt to open the power supply unit for cleaning or repair. This can expose you to dangerous voltages and will void the warranty.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| System does not power on. |
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| System powers on but is unstable or shuts down randomly. |
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| Loud fan noise from PSU. |
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If troubleshooting steps do not resolve the issue, please contact your vendor or OEM technical support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | ASC141970ATE01 (PWS-201-1H) |
| Brand | OEM (Supermicro) |
| Form Factor | Internal, Rack-mountable (1HE) |
| Output Wattage | 200 Watts |
| Input Voltage | AC 100-240 Volts |
| Efficiency | 80 PLUS certified |
| Power Factor Correction (PFC) | Active PFC |
| Connector Type | EPS12V |
| Compatible Devices | Personal Computer |
| Item Weight | 2.51 pounds (approx. 1.14 kg) |
| Date First Available | April 20, 2012 |
8. Warranty and Support
For warranty information and technical support, please refer to the documentation provided by your system integrator or the original equipment manufacturer (OEM). Warranty terms typically cover defects in materials and workmanship under normal use.
Keep your proof of purchase for warranty claims. Do not attempt to repair the unit yourself, as this will void the warranty.
For further assistance, contact your product vendor or the OEM's customer service department.





