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Recent Posts

Recent Posts

Seasonic PRIME Titanium Series Power Supplies

01/16/2017 - 19:11

[inline:files/review/2016-12-31/2-Banner-3.jpg] We are going to kick-off the New Year on a high-note by taking another look at Seasonic’s PRIME Titanium series power supplies. When we first tested the new PRIME 750W Titanium PSU last summer, we...

Final Thoughts and Conclusions

01/13/2017 - 12:29

[inline:files/review/2017-01-13/6a-Nameplate_0.jpg] The overall performance of the new Supernova 850W G3 power supply was phenomenal. It is amazing how far PC power supplies have come in recent years. Voltage regulation and AC ripple suppression are as...

Efficiency, Differential Temperature and Noise

01/13/2017 - 12:24


DC Load Regulation and AC Ripple

01/13/2017 - 12:20

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...

A Detailed Look

01/13/2017 - 12:16

[inline:files/review/2017-01-13/10-Back.jpg] The EVGA Supernova 850W G3 power supply enclosure is painted matte black and measures 150mm (5.9”) long. The same compact chassis is used for all G3 Series power supplies, up to and including the 1000W...

Specifications and Packaging

01/13/2017 - 12:04

[inline:files/review/2017-01-13/5-PSU-bottom.jpg] The EVGA Supernova 850W G3 power supply is rated for a combined, continuous output power of up to 850 watts at 50°C operating temperature. The PSU incorporates a single +12V rail that can deliver up...

Final Thoughts and Conclusions

12/31/2016 - 16:05


Differential Temperature and Noise Levels

12/31/2016 - 16:01

To simulate a demanding environment, some of the warm exhaust air from each PSU under test is recirculated back to the intake through a passive air duct, which allows the PSU air inlet temperature to increase with load, just like it would in a real PC....


12/31/2016 - 15:59

Efficiency is defined by the power output divided by the power input and is usually expressed as a percentage.  If a PSU were a 100% efficient (which none are) 750 watts of AC power going in would result in 750 watts of DC power coming out (with no...

AC Ripple and Noise on the DC Outputs

12/31/2016 - 15:56

The amount of AC ripple and noise present on the DC outputs was checked using a digital oscilloscope.  This AC component may be present in the KHz range where most switching power supplies operate or it may be more prevalent at the 60 Hz line...