Seasonic 1050 Snow Silent Platinum power supply review

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Certification, Specs and Features

Certification

So Seasonic introduced the new 1050W Platinum series with an 80+ Platinum certification, tested by the 80PLUS organization (the people that certify and test efficiency). But what does such a certification entail?

Enermax Platimax

Well, we have standard, bronze, silver, gold, and platinum certifications (recently Titanium as well). A PSU that is certified 80 PLUS Gold or 80 PLUS Platinum is more efficient than a normal unit. Below youll find a table that shows what efficiency levels a PSU has to achieve at a given load to make the grade for a specific certification level.

 Efficiency at 20% LoadEfficiency at 50% LoadEfficiency at 100% Load
80 PLUS 80% 80% 80%
80 PLUS Bronze 82% 85% 82%
80 PLUS Silver 85% 88% 85%
80 PLUS Gold 87% 90% 87%
80 PLUS Platinum 90% 92% 89%

The power supplies are certified by the 80PLUS organization to deliver an 92% energy efficiency at 50% load (which equals with a Platinum label) and also comply with the ErP (Energy Related product) directive to ensure less than 1W of power is used in passive standby and off modes.

Specs and Features

This baby is 80Plus Platinum certified and comes with one big single +12V rail, it has a 120mm fan and is fully modular. Pricing and availability is TBA. The unit is 80PLUS Platinum certified, has a unique design + 12V rail, and most of the mechanisms of modern electrical and thermal protection. The unit is fully modular with a 8-pin EPS, 24pin ATX, five Molex connectors and Berg, fourteen SATA, eight 6 + 2 pin PCI-Express. The device is cooled by a 120 mm fan which is also white. There is a hybrid fan control fully powers the fan under a threshold load.

The 1KW unit has one big slash huge single 12V rail, which is rated at a stunning 87 amps, so if you multiply that by 12 Volts then we see an available peak of 1044W on the 12V rail alone.

Special Features 

1. 80PLUS® Platinum Certified Super High Efficiency
2. DC Connector Panel with Integrated VRM [Voltage Regulator Module]
3. DC to DC Converter Design
4. Dual Copper Bars
5. Active Power Factor Correction [99% PF Typical]
6. Conductive Polymer Aluminum Solid Capacitors
7. Highly Reliable 105°C Japanese Aluminum Electrolytic Capacitors
8. Gold Plated High Current Terminals
9. Ultra Tight Voltage Regulation
10. High +12V Output
11. Dual Sided PCB Layout
12. Seasonic Patented Hybrid Silent Fan Control
13. Ultra Ventilation [Honeycomb Structure]
14. Full Modular Cabling Design
15. Multi-GPU Technology Support
16. All-in-One DC Cabling Design
17. Easy Swap Connector
18. Universal AC Input [Full Range]
19. 7 Years Warranty

As such the power supply can be compatible with a wide range of CrossFireX and SLI setups as well as with all the upcoming high performance CPUs, including solutions built on top of the AMD Bulldozer and Intel Sandy Bridge-E architectures.

We'll be testing the 1050W model today with four GPUs. With prices of 235 EUR for the 1050W model these PSUs can be considered top of the line, yet affordable within its class .

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