Seasonic seems to be competing against its self with the X-Series

Subject: Cases and Cooling | August 27, 2013 - 12:56 PM |
Tagged: X-650, Seasonic X-Series, PSU, modular psu

Seasonic's X-650 PSU is fully modular, allowing you to choose exactly what cables you use though the ATX power is mandatory.  It has four 6+2 PCIe power connectors and can deliver 648W @ 54A to the 12V rail making this a solid choice for a multi-GPU system.  The performance on [H]ard|OCP's test bench was excellent, the only complaint they've had is that Seasonic really hasn't changed much about their PSUs in quite a while.  That might be a little boring for reviewers but for enthusiasts, great performance at a variety of wattage is a good thing.

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"Seasonic's X-Series computer power supply comes to us boasting a patented fully modular design that minimizes voltage drops and impedance while greatly maximizing efficiency, cooling, and overall performance. Being a Seasonic unit, we can also count on it targeting the users looking for a quiet computing experience."

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Source: [H]ard|OCP

The upper echelon of the Seasonic X-Series, 850W of solid power

Subject: Cases and Cooling | April 15, 2013 - 03:54 PM |
Tagged: seasonic, Seasonic X-Series, 850W, PSU, modular psu

One drawback to impressing [H]ard|OCP with the quality of one of your PSUs is that the bar is now set that much higher for the next model they review.  Seasonic is one such company that has a great reputation that they have to live up to with their new X-850 PSU.  The half dozen PCIe 6+2 power plugs are a good start, as is being able to provide up to 99% of total power to the four 12V rails and the fully modular cabling is always appreciated.  The real question is how it fared on the test bench, so go find out if it just makes it or if it passes the torture test with flying colours.

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Seasonic is a long time favorite of HardOCP editors as you will find a Seasonic PSU in many builds we have done over the years. Today Seasonic pushes its X-Series forward just a bit more building its first gold efficiency rated fully modular enthusiast power supply. But will it blend?"

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Source: [H]ard|OCP
Manufacturer: Seasonic

Introduction and Features

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Seasonic has a well earned reputation for producing some of the best PC power supplies on the planet. Over the years, Seasonic has been the OEM (Original Equipment Manufacturer) of choice for companies like Corsair, PC Power & Cooling, and XFX to name just a few. But Seasonic also markets power supplies under their own brand name. The new X-Series 1050W and 1250W are Seasonic's newest and most powerfull PSUs to date. Both power supplies are based on Seasonic's X-Series line, which has brought several major advancements to the standard PC power supply platform since its introduction three years ago.

• Proprietary circuit design delivers High efficiency (80Plus Gold or Platinum certified)
• Full modular DC Connector Module features integrated VRMs (3.3V and 5V)
• Hybrid Silent Fan Control (3 modes of operation: Fanless, Silent and Cooling)
• High-quality Sanyo Denki SanAce120 dual ball bearing fan with PWM
• High-reliability 105°C grade A capacitors and solid polymer capacitors

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Here is what Seasonic has to say about their new X-Series Gold 1050W and 1250W power supplies:

"The X-1050 and X-1250 are the newest additions to one of our most successful retail lines currently available. Now the X-Series will extend from 400 and 460 watt fanless and then 560, 660, 760, 850 watt and now 1050 and 1250 watts for top end systems; a total of eight X-Series models in all.

80Plus Gold The X-1050W and X-1250W PSUs are certified in accordance to the 80PLUS organization's high standards, offering the newest technology and innovation for performance and energy savings with up to 90% efficiency and a true power factor of greater than 0.9 PF.

Full Modular Design (DC to DC) Common to all X-Series power supplies, the new X-150 and X-1250 feature the unique integrated DC connector panel with onboard VRM (Voltage Regulator Module) that enables not only near perfect DC-to-DC conversion with reduction of current loss/impedance and increase of efficiency but also a fully modular DC cabling that enables maximum flexibility of integration and forward compatibility.

Seasonic Hybrid Silent Fan Control An industry first, advanced 3 phased (Fanless, Silent and Cooling Mode) thermal control balances between silence and cooling. In addition, a selector switch is provided to allow you to select between Seasonic S2FC control, without fanless mode or S3FC fan control with fanless mode.

Sanyo-Denki San Ace Silent Fan The world-renowned Sanyo Denki ball bearing fans are made of the highest quality components to insure maximum quality and performance. The use of spoon shaped high-density plastic fan blades with smoothed leading edges, strict tolerance ball bearings and precision copper axel are just some features to ensure ultra-low noise performance and quality."

Please continue reading our Seasonic X-1250 PSU review!