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Seasonic are using a Hong Hua 135mm fan, Model number HA13525H12F-Z – the same model featured in the PRIME 850W, 1000W and 1200W Platinum supplies. This is a Fluid Dynamic Bearing Fan selected for low noise characteristics. Regular readers may recall that the Seasonic Snow Silent 750W unit shipped with a smaller 120mm fan from the same company so its a good move that Seasonic are adopting larger fans.
Below - a High Resolution Gallery of the internal layout of the Seasonic PRIME 650W Platinum
Soldering quality throughout is excellent and Seasonic have reduced clutter inside thanks to their new cable free connection design. Due to the very high levels of efficiency there is no need to include a plethora of heatsinks throughout the design, so we are left with a couple of heatsinks in key placements which should be more than adequate.
No surprise, but Seasonic are using high grade 105c rated Japanese capacitors in both primary and secondary stages which is always reassuring to see. No TEAPO garbage in this supply.
The two primary Nippon Chemi Con capacitors are 105c rated and 400v 220uF to produce a total of 440uF. Checking back with our review of the Titanium PRIME 650W power supply from August 2016, we can see Seasonic massively over specified that unit, with two 450uF primary capacitors in the design to deliver a total of 900uF!
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