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Seasonic X-460 Fanless 460W 80Plus Gold Silent Powersupply Review

Seasonic X-460 Fanless 460W 80Plus Gold Silent Powersupply Review - PCSTATS
Abstract: In this review PCSTATS is testing out an entirely fanless, silent 460W power supply from Seasonic's modular "X" series. There aren't very many fanless power supplies on the market so this is a bit of a treat.
 80% Rating:   
Filed under: Power Supply Published:  Author: 
External Mfg. Website: Seasonic Aug 09 2012   Max Page  
Home > Reviews > Power Supply > Seasonic SS-460FL

Modular Cables and a Look Under the Cover

All cables from the Seasonic X-460 Fanless are wrapped in black wire loom sleeves, the ends are zip tied and covered with heat shrink tubing. The main ATX power connector is ~60cm long, the other cables vary from 60cm to 65cm in length to the first connector on the daisy chain.

Plugging the modular cables into the Seasonic X-460 is easy. The connectors themselves are secured by a plastic retention tab that notches inside the modular cavity. In certain system cases attaching and detaching cables can become an issue since there won't be much room to grip them with your hands.

The cable count adds up to two SATA power cables (five power connectors total), two molex power cables (five power connectors total), one PCI Express power cable (twor connectors, each can be used with eight or six pins), a single motherboard cable, one CPU cable (either 8-pin or two 4-pin) and a molex to two FDD power converter.

Polymer Aluminum Capacitors Inside

The Seasonic X460 Fanless power supply supports over/under voltage, over current, over power and short circuit protection in order to protect you, the power supply and the PC system from damage. The X-460 Fanless is designed to operate in temperatures between 0-50 degrees Celsius and in relative humidity between 20-80%. The power supply is fully 100-240VAC, 50/60Hz compliant (max 90-264VAC) so it can be used anywhere in the world. The fuse is not user replaceable.

The first thing that's immediately obvious upon opening Seasonic's 80 Plus Gold rated X-460 Fanless power supply is the total lack of internal wiring. This puppy is just cleanly laid out with plenty of space between components for good airflow. The circuit boards are all dual layer PCB and Seasonic use solid state polymer aluminum capacitors and Japanese made 105 Celsius Grade 'A' rated electrolytic caps for the power filter (larger, brown wrapping). The main 120V power socket (pictured at upper right) is fully RF shielded too.

Another interesting innovation with the X-460 Fanless is the circuit board where all the modular cables connect. It's actually the DC-to-DC converter - basically the circuit that takes the main DC supply and breaks it off to the different voltage levels required by the various power cables that hook up to the motherboard. An aluminum heatspreader covers the power MOSFETs that form part of the +3.3V and +5V voltage regulator on that daughterboard.

Finally, it's time for the power supply load tests and final thoughts on this fanless PSU.

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Contents of Article: Seasonic SS-460FL
 Pg 1.  Seasonic X-460 Fanless 460W 80Plus Gold Silent Powersupply Review
 Pg 2.  Appearance and Physical Specifications
 Pg 3.  — Modular Cables and a Look Under the Cover
 Pg 4.  Power Draw Tests and Conclusions

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   09 / 22 / 2019 | 8:05AM
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