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Seasonic Snow Silent 1050W PSU Review (XP3)

The Seasonic Snow Silent 1050W Power Supply is certainly eye catching. The white paint, subtle branding and silver accenting is attractive. The enthusiast audience using a windowed LED lit white case from the likes of Corsair or NZXT will find this unit particularly appealing.

Technically, the Seasonic XP3 design has been proven bulletproof in 2014 and the new Snow Silent model is no exception. Seasonic don't skimp on the internal components, opting for highest grade Japanese grade 105c rated Nippon Chemi Con capacitors. This unit adopts a new Fluid Dynamic Bearing 120mm fan for quiet operation.
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In the real world the power supply is very quiet, right up until a full 800watts is demanded. The fan starts to actively spin to compensate for rising temperatures. That said, even at a 1000 watt load it remains reasonably quiet. Realistically we would recommend if you need a constant 800-1000 watts that you budget for a 1200w or 1250w unit. Ideally you want to be running between 40-70 percent load to achieve excellent efficiency and cooler running temperatures.

The Seasonic Snow Silent 1050W uses three Nippon Chemi Con 105c 330uF 420V capacitors and in our tests it was actually able to deliver 1,200Watts of power before shutting down. This is a remarkable result and bodes well if you are running close to the 1000W redline under load. Seasonic are clearly over specifiying these units which is commendable, especially as we often see corners being cut by competitors.

Technically, these high grade Platinum units from Seasonic are class leaders. Load regulation is stellar, ripple suppression is excellent and the unit copes well with demanding cross load tests.
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You can pick up the Seasonic Snow Silent 1050W power Supply from Overclockers UK for £199.99 inc vat. It is an expensive unit, but if you are powering a high level multi GPU system then it would be uneducated to skimp on the quality of the power delivery.

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  • built to the highest standards.
  • Nippon Chemi Con 105c rated primary capacitors
  • pure modular design.
  • hysteresis system works great.
  • low noise fluid dynamic bearing fan.
  • 8 PCIe connectors and 14 SATA connectors.
  • 7 year warranty.


  • Silver stickers didn't seem adhered too well on our sample unit.

Kitguru says: Another stellar high grade power supply from the Seasonic team. We think it looks great in white too!

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Rating: 9.0.

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