Final Thoughts and Conclusions

Seasonic’s new PRIME Platinum Series hits the sweet spot for high-end users looking for a good balance of high quality components and high performance operation at an attractive price. Top that off with 80 Plus Platinum certified efficiency and a 12-year warranty and who wouldn’t be impressed.

The overall electrical performance of the PRIME 1000W Platinum PSU is excellent with tight voltage regulation (=1% on the three primary rails thanks to Seasonic’s Micro Tolerance Load Regulation) and excellent AC ripple and noise suppression. We really like the ability to choose whether or not to run in fanless mode or not (I personally like to have the fan spinning at all times to keep a little air moving). The PRIME Platinum Series also features fully modular cables and a large, quiet cooling fan with a Fluid Dynamic Bearing. Our only minor gripe is with the PCI-E cables, not having some dedicated PCI-E connectors instead of having two connectors daisy-chained onto each cable, particularly given the 18 AWG wire size.

In addition to excellent performance, the PRIME 1000W Platinum power supply offers a full complement of safety and protection features: OPP,OVP,UVP,SCP,OCP and OTP.

The Seasonic PRIME Platinum Series power supplies are currently available and selling for prices that are hard to beat (July 2017).

•    MSRP for PRIME 650W Platinum $129.90 USD
•    MSRP for PRIME 750W Platinum $149.90 USD
•    MSRP for PRIME 850W Platinum $169.90 USD
•    MSRP for PRIME 1000W Platinum $199.90 USD
•    MSRP for PRIME 1200W Platinum $229.90 USD

•    High efficiency – easily meets 80 Plus Platinum certification requirements
•    Tight voltage/load regulation (=1% is excellent)
•    Very good AC ripple and noise suppression
•    Premium Hybrid Fan Control (allows fan-less operation at low power)
•    Quiet, high quality 135mm  FDB fan
•    Fully modular cable design
•    High-quality components and excellent build quality
•    Multi-GPU technologies supported
•    Gold-plated high-current terminals
•    Protections: OPP,OVP,UVP,SCP,OCP and OTP
•    12-Year warranty
Minor Weaknesses :
•    No dedicated PCI-E connectors (two connectors daisy-chained on each cable)

Seasonic PRIME 1000W Platinum Power Supply

Our thanks to Seasonic for sending over another great power supply for us to review!

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