Lenovo ThinkCentre M900 M800 M700 P310 SFF Power Supply Unit PSU 54Y8942

Lenovo ThinkCentre M900 M800 M700 P310 SFF Power Supply Unit PSU 54Y8942

Is your Lenovo ThinkCentre or ThinkStation failing to power on? Are you experiencing random shutdowns, system instability, or a complete failure to boot? If so, the solution is simple: replace your failing power supply with the Lenovo 54Y8942 210W Power Supply.

This genuine OEM power supply is the perfect drop-in replacement for your Lenovo Small Form Factor (SFF) system. Designed specifically for Lenovo’s compact business desktops, this unit delivers reliable, stable power to get your system back to peak performance.

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What Is the Lenovo 54Y8942 Power Supply?

The Lenovo 54Y8942 is a 210-watt power supply designed specifically for Small Form Factor (SFF) systems . It serves as the direct replacement for part number 54Y8942 and is also compatible with part numbers 54Y8941, 5P50V03219, FSP210-20TGBAA, and HK310-71PP .

Manufactured by trusted names like Lite-On, Huntkey, FSP, and AcBel, this power supply is engineered to meet Lenovo’s exact specifications . As a result, you get a perfect fit, reliable power delivery, and long-term durability.

Whether you’re using your desktop for office work, business applications, or daily computing tasks, this power supply delivers the stable energy your system needs to run smoothly every day.

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Why Choose the Lenovo 54Y8942 Power Supply?

Genuine OEM Quality

To begin with, this is not a generic “compatible” power supply—it is a genuine Lenovo OEM component. This means it is built to Lenovo’s exact specifications, ensuring proper fitment, reliable power delivery, and long-term durability. Consequently, you can trust this unit to perform exactly as your original power supply did.

Reliable 210-Watt Output

Moreover, with 210 watts of continuous power, this power supply provides sufficient energy for standard desktop computing tasks . It is engineered for efficiency and stability, making it ideal for daily use in office and business environments.

Broad Voltage Support

Furthermore, the 54Y8942 features 100-240V auto-switching input, making it suitable for use in many regions worldwide without manual adjustment . This flexibility ensures compatibility regardless of where you are located.

80 PLUS Bronze Efficiency

In addition, this unit features 80 PLUS Bronze certification, meaning it operates at up to 82% efficiency or higher . This translates to lower electricity bills, reduced heat output, and a smaller environmental footprint—all without sacrificing performance.

Essential Connectors

This PSU includes all the necessary connectors to power your Lenovo system:

• Proprietary 10-Pin ATX Connector – Main motherboard power (Note: this is NOT standard ATX!) 

• 4-Pin P4 CPU Connector – Dedicated power for the processor 

Small Form Factor Design

Finally, the power supply follows the SFF design, measuring approximately 82 x 65 x 150 mm (3.2 x 2.6 x 5.9 inches) . As a result, it fits perfectly into your Lenovo SFF chassis.

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Is the Lenovo 54Y8942 Compatible with Your System?

This power supply is designed specifically for Small Form Factor (SFF) versions of Lenovo systems . Here are the confirmed compatible models:

ThinkCentre Series

• ThinkCentre M700 SFF 

• ThinkCentre M800 SFF 

• ThinkCentre M900 SFF 

• ThinkCentre M910s SFF 

• ThinkCentre M710s SFF 

• ThinkCentre M70s SFF 

• ThinkCentre M75s SFF 

• ThinkCentre M720s SFF 

• ThinkCentre M725s SFF 

ThinkStation Series

• ThinkStation P310 SFF 

• ThinkStation P320 SFF 

• ThinkStation P330 2nd Gen SFF 

Additional Compatible Models

• Lenovo S500 SFF 

• Lenovo V520 SFF 

• Lenovo V530 SFF 

• Lenovo IdeaCentre 300S SFF 

• Lenovo IdeaCentre 510S SFF 

Part Number Cross-Reference

Look for any of these numbers on your current power supply:

• 54Y8942 

• 54Y8941 

• 5P50V03219 

• FSP210-20TGBAA 

• HK310-71PP 

• PA-2221-3 

• PCE025 

• SP50D92832 / SP50H29451 / SP50H29452 / SP50H29453 

• 00PC749 / 00PC753 / 00PC779 / 00PC775 / 00PC746 

⚠️ Critical Compatibility Note: This power supply uses a proprietary 10-pin connector designed specifically for Lenovo motherboards . It is NOT compatible with standard ATX motherboards. Furthermore, it is designed for the Small Form Factor (SFF) chassis—it will NOT fit tower models . Please verify your chassis type and connector before purchasing.

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Technical Specifications

Here is a detailed breakdown of everything you need to know about this power supply.

Product Overview

The Lenovo 54Y8942 is an internal SFF power supply manufactured by trusted suppliers like Lite-On, Huntkey, FSP, and AcBel for Lenovo ThinkCentre and ThinkStation systems.

• Part Number: 54Y8942 

• Manufacturers: Lite-On, Huntkey, FSP, AcBel 

• Form Factor: Small Form Factor (SFF) 

• Dimensions: 82 x 65 x 150 mm (3.2 x 2.6 x 5.9 inches) 

Power Output Specifications

• Maximum Power: 210 Watts 

• Input Voltage: 100-240VAC (auto-switching) 

• Input Frequency: 50-60 Hz 

• Input Current: 0.3A 

• Efficiency: 80 PLUS Bronze certified (up to 82% efficiency) 

DC Output Specifications

The 54Y8942 provides stable power across multiple output rails:

• +12V at 17.5A – Primary power rail for the processor, drives, and peripherals 

• -12V at 0.2A – Supports legacy serial ports and audio circuits 

Connector Configuration

The power supply includes a proprietary connector set for your Lenovo system:

• One 10-Pin Proprietary ATX Connector – Main motherboard power 

• One 4-Pin P4 CPU Connector – Dedicated power for the processor 

Note: The 54Y8942 variant features shorter cables, while the 00PC747 variant has longer cables .

Cooling

The unit features an integrated fan that keeps your system cool while operating quietly. Moreover, it is designed for energy efficiency, reducing electricity consumption and extending the life of your PC.

Safety and Compliance

The Lenovo 54Y8942 meets rigorous safety and environmental standards. For instance, the unit includes built-in protections to safeguard your system’s components from electrical damage. Furthermore, it is 80 PLUS Bronze certified for efficiency and meets RoHS compliance standards.

Why Buy From Compvate?

At Compvate, we understand that finding the right replacement part can be frustrating. That is why we make the process simple and stress-free.

• Genuine OEM Parts – We source authentic Lenovo components, never generic “compatible” units that can fail prematurely

• Expert Technical Support – Our team knows Lenovo systems inside and out. If you’re not sure about compatibility, we are just a message away

• Fast Shipping – We know downtime costs money. That is why we ship orders quickly so you can get your system back online

• Competitive Pricing – Quality replacements at prices that make sense for your budget

• Satisfaction Guaranteed – We stand behind every product we sell

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