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Fanless Power Supply PC Build Guide

Cases|Damping | Do-It-Yourself Systems | Power | Silent PC Build Guides
A high efficiency fanless PSU is a great starting point for an ultra quiet yet powerful modern PC. In our latest system build guide, we explore case and configuration options, share our observations about how a fanless PSU changes PC airflow, and walk you through the fine details of a full fledged PC build with a fanless Seasonic X series PSU.

Fanless PSUs: Kingwin Stryker STR-500 & Silverstone ST50NF

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We review and compare two fanless 500W ATX12V power supplies from quality brands. One has 80 Plus Platinum efficiency; the other sports Silver. In other ways, they appear similar, with the exo-heatsink design of so many passively cooled devices.

Kingwin Lazer Platinum 550W Power Supply

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The only 80 Plus Platinum level PSU on the market, with over 92% maximum energy efficiency, is also said to be one of the quietest. We analyze the Kingwin LZP-550 for efficiency, electrical performance and noise.

Corsair Gold: AX850 Power Supply

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Corsair's new AX850 has 80 Plus Gold certification for 90% efficiency, totally modular cables, a hybrid passive/active cooling for silent operation, and is backed by a 7-year warranty. It's perfect for a Silent Gaming Rig in a thermally advanced case.

Cougar GX-700: 80 Plus Gold from a new brand

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A German affiliate of HEC, Cougar is offering the 80 Plus Gold rated premium GX series only in the EU at this time. How does the GX-700 fare against other Gold PSUs?

Antec TruePower New TP-750

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The TruePower series has been bread-and-butter for Antec for many years, but the line has recently received a refresh. Partly modular cabling, high efficiency, lower noise, and high quality parts are all promised in these new Seasonic-made models. How do they fare against the SPCR short list?

Fanless PSU Torture Test Roundup

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A roundup torture test of samples from every fanless power supply line in the marketplace instigated by the Seasonic X-400 Fanless, which cruised through 15 hours of full-load operation at nearly 60¬įC temperature in the "case". Which fanless PSUs can actually deliver rated power with virtually no forced airflow?

Seasonic X-400 Fanless PSU

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The Seasonic X-400 Fanless is based on the successful, 80 Plus Gold X-series platform introduced late last year. Company reps say the new fanless PSU was years in the making; ultimately, they had to await the development of a super-efficient platform. It was worth the wait.

Enermax Modu87+ 500W 80Plus Gold

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The most efficient ATX12V power supply in the world with a sensible power rating is the Enermax Modu/Pro 87+ 500W. It's also the quietest, by a slim margin. Alas, finding one to buy is a challenge.

Nexus NX-5000 Silent PSU

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Nexus has had PSUs in SPCR's silent circle before. The NX-5000, a modest 530W model with fairly high efficiency, is the latest to enter the select winners circle.

Corsair CX400W Power Supply

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The well-known memory brand morphed in recent years to become a major player in retail power supplies. While Corsair offers kilowatt PSUs, a 400W model rounds out the opposite end of its line.

Enermax Eco80+ 500W PSU

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In Enermax' seven (!) lines of power supplies, the Eco80+ is one of two tagged as "eco". The "Love our Earth" tagline on the packaging attests that "eco" stands for ecology, but its position at the low-end of Enermax' lineup suggests that "economy" might also be a relevant tag. How fares this modest PSU in these times of silent, 90% efficiency, $200 models?

Winmate DD-24AX DC-DC Module for Silent, Efficient Power

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Power solutions continue to evolve in this era of ubiquitous computing. Electrodacus offers the PC enthusiast a picoPSU alternate: A silent, 88% efficient DC-DC converter module with full regulation to 130W output... at a price made for ultra SFF hobbyists. A close look the Winmate DD-24AX under the SPCR power microscope.

X-650: Seasonic hits Gold

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The X-series power supplies achieved 80 Plus Gold nearly a year ago, and they're finally on the market now. Is Seasonic's best also SPCR's most highly recommended? Yes. Read all the details here.

Antec CP-850: Unique PSU with Top Performance

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The CP-850 is 1.2" too tall to fit into all but three of Antec's top cases, so its popularity has to be be unnaturally limited. But the electrical and acoustic performance is superlative, especially in those cases, and it comes at an amazingly low price. White elephant or futuristic visionary?
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