Introduction and Features

The new Platinum-860 and Platinum-1000 are Seasonic’s newest and most advanced PSUs to date and the Platinum-1000 is their first 1kW unit.

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 Platinum-860 and Platinum-1000 are Seasonic’s newest and most advanced PSUs to date and the Platinum-1000 is their first 1kW unit. 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 two 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 San Ace dual ball bearing fan with PWM
• High-reliability 105°C grade A capacitors and solid polymer capacitors

Continue reading our review of the Seasonic Platinum 80 Plus 1000W Power Supply!!

Here is what Seasonic has to say about their new Platinum-860 and Platinum-1000 power supplies:

"80Plus Platinum The Platinum Series, certified in accordance to the 80PLUS organization’s highest standards, offers the newest technology and innovation for performance and energy savings with up to 92% efficiency and a true power factor of greater than 0.9 PF.

Full Modular Design (DC to DC) The Platinum Series features a high-tech LLC/full-bridge circuit topology with a unique integrated DC Connector Panel with an embedded Voltage Regulator Module. This design contributes to a near-perfect DC-to-DC conversion that optimizes efficiency by reducing current loss and impedance.

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."

Seasonic Platinum-860 and Platinum-1000 PSU Key Features:

• 860/1000 watt continuous power output (up to 50°C)
• 80Plus Platinum certified super high efficiency
• 7-Year warranty
• Full modular DC Connector Panel features integrated VRMs (3.3V and 5V)
• Hybrid Silent Fan Control (3 modes of operation: Fanless, Silent and Cooling)
• High-quality Sanyo Denki San Ace dual ball bearing fan with PWM
• High +12V output (71A/83A)
• Tight voltage regulation (±2%)
• Supports high-end graphic cards with four/six 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
• High current Gold plated terminals with Easy Swap connectors
• Active PFC with Universal AC input

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

The Seasonic Platinum-1000 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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