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Seasonic G Series 360W Power Supply Review

Manufacturer: Seasonic

Introduction and Features

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Seasonic’s G Series includes four new power supplies ranging in output capacity from 360W up to 650W. The G Series was designed for customers who are building small to mid-size systems and they offer high quality but without all the bells and whistles of Seasonic’s popular Platinum and X Series. The new G Series is available in 360W, 450W, 550W, and 650W models. In comparison to the Seasonic Platinum and X Series, the G Series uses a high quality 120mm Adda fan paired with the S2FC fan control, rather than the super Sanyo Denki SanAce fan and S3FC fan control. The 360W model we are reviewing comes with standard fixed cables while the 450W, 550W and 650W models come with a hybrid combination of fixed and modular cables. All power supplies in the G Series are 80 Plus Gold certified and backed by Seasonic’s 5-year warranty.

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Seasonic G Series 360W Power Supply Key Features:

• 80Plus Gold certified and eco-friendly
• DC-to-DC converter design provides superior dynamic response
• Tight voltage regulation (±3%)
• Smart and Silent Fan Control (S2FC)
• High reliability 105°C electrolytic capacitors
• Conductive polymer aluminum solid capacitors
• High current gold plated terminals
• 12cm Ball bearing cooling fan
• Ultra ventilation (Honeycomb structure)
• Video card support (one or more PCI-E connectors)
• Universal AC input (Full Range) and Active PFC
• 5-Year Warranty

Please continue reading our Seasonic G Series 360W power supply review!

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 DC load on the PSU under test.  Each power supply is tested under controlled, real-world conditions up to its maximum rated load (at 40ºC), using both 115 VAC and 240 VAC line voltage.  Our current suite of tests includes:

• DC Load Regulation
• AC Ripple and Noise
• Efficiency
• Differential Temperature
• Noise

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The Seasonic G Series 360W 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)
• Agilent 34401A digital multimeter (Accuracy ±0.0035% vDC)
• 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)
 

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