Introduction and Features

Seasonic’s new X Series PSUs come with all modular cables and deliver excellent voltage regulation, high efficiency and can operate in silent, fan-less mode. Check out our review to see if the X Series 560W is the PSU to own for your next HTPC build.
Introduction
   
Seasonic X Series 560W Power Supply Review - Cases and Cooling 41

Seasonic continues to expand their popular X Series power supply line up with the introduction of four new models: 560W, 660W, 760W and 850W targeted towards users looking for performance, high efficiency and quiet operation.  These new power supplies complement the original X Series (750W and 850W) along with the X Series fanless 400W and 460W units.  Seasonic’s new X Series line brings several major advancements to the standard PC PSU platform.

•    Proprietary circuit design delivers High efficiency (80 Plus Gold certified)
•    Full modular DC connector module features integrated VRMs (3.3V and 5V)
•    Hybrid Silent Fan Control2 (3 modes of operation: Fanless, Silent and Cooling)
•    High-quality Sanyo Denki San Ace dual ball bearing fan with PWM
•    High-reliability 105° grade A capacitors and solid polymer capacitors

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Seasonic X Series 560W Power Supply

Here is what Seasonic has to say about their new X Series 560, 660, 760 & 850 watt Power Supplies: “Versatility best describes these mid range power output 80 Plus Gold certified power supplies. These fully modular units provide enough juice to run just about any system configuration you build. Manufactured with top-grade components such as the Sanyo Denki – San Ace fan, governed by Seasonic’s semi-passive Hybrid Silent Fan control, these units will just keep on working day in and day out.”

Seasonic X Series 560W PSU Key Features:

•    560 watt continuous power output (up to 50°C)
•    80Plus Gold certified super high efficiency
•    Full modular DC connector module features integrated VRMs (3.3V and 5V)
•    Hybrid Silent Fan Control2 (3 modes of operation: Fanless, Silent and Cooling)
•    High-quality Sanyo Denki San Ace dual ball bearing fan with PWM
•    New proprietary circuit design delivers High efficiency (80Plus Gold certified)
•    High +12V output (46A/552W)
•    Tight voltage regulation (±3%)
•    Green Innovations (long life cycle, high quality components, high efficiency, and value)
•    Supports high-end graphic cards with two 6/8-pin PCI-E connectors
•    High-quality Japanese capacitors for maximum durability (105°C)
•    Solid conductive polymer aluminum capacitors for enhanced stability
•    Dual sided PCB layout
•    Active PFC with Universal AC input
•    5-Year warranty


PSU Testing Methodology

Establishing an accurate load is critical to testing and evaluating a PC power supply.  PCPerspective’s power supply test bench can place a precise 2,000 watt DC load on the PSU under test.  Each power supply is tested under controlled, real-world conditions up to its maximum rated load, using both 115 VAC and 240 VAC line voltage.  Our current suite of tests includes:

•    DC Load Regulation
•    DC Line Regulation
•    DC Cross-load (unbalanced load)
•    AC Ripple and Noise
•    Power Factor
•    Efficiency
•    Differential Temperature
•    Noise

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The Seasonic X Series 560W power supply was evaluated on both features and performance.  A full range of equipment was used to test the power supply under controlled load conditions. 

•    (2) CSI3710A Programmable DC load (+3.3V and +5V outputs)
•    (4) CSI3711A Programmable DC load (+12V1, +12V2, +12V3, and +12V4)
•    (2) 200W Precision resistor load bank (+12V5 and +12V6)
•    Switchable precision resistor load bank (-12V and +5VSB)
•    Extech MultiMaster MM570 digital multimeter (Accuracy ±0.02%)
•    Extech 380803 Power Analyzer (Accuracy ±0.5% of full scale)
•    DS1M12 “StingRay” digital oscilloscope (20M S/s with 12 Bit ADC)
•    Powerstat Variable Autotransformer, 1.4 KVA, 0-140 VAC
•    Extech Model 407738 digital sound level meter (Accuracy ±1.5 dB)
•    Custom PC60 enclosure to simulate real-world operating conditions




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