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Seasonic are using a Hong Hua 135mm fan, Model number HA13525H12F-Z – the same fan fitted into the PRIME 1000W Platinum power supply. 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. Larger fans of similar quality are able to push more air at the same speeds, likely often spinning slower to reduce noise emissions. This fan is rated at around 150,000 hours at 25c.
Below - a High Resolution Gallery of the internal layout of the Seasonic PRIME 1000W Gold
The overall build quality is very high, as we would expect from Seasonic. Soldering quality is stellar and there are several little heatsinks in key positions to help deal with the heat. Due to the high efficiency rating of this particular unit there really is no need to over populate the internals with an array of heatsinks.
Seasonic are using high grade 105c rated Japanese capacitors in both primary and secondary stages. The two primary capacitors are rated 400v 560uF and 400v 470uF, to give a total of 1030uF.
When we look back at our review of the more expensive PRIME Platinum 1000W supply the two primary capacitors are rated 400v 450uF, along with a bigger 400v 560uF model from the same family. This gives a total of 1010uF.
Yes, it would appear the less expensive PRIME Gold 1000W unit has a slightly higher uF output, when compared to the Platinum model.
It is interesting to note that the 850 watt Titanium PRIME model (reviewed in August 2016 HERE) has actually a greater uF output than either 1000W Platinum or GOLD models. The Titanium 850W model used a 650uF and a 450uF capacitor in the primary stage for a total output of 1100uF.
All things considered, Seasonic do tend to greatly over specify their power supplies. We reviewed a Super Flower 1000W gold unit recently and it was equipped with two 470uF capacitors for a total of 940uF. Very few 1000W power supplies we have reviewed in recent months ship with a total of 1000uF in the primary stage.
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