FSP VITA GM 850W PSU Review

FSP have adopted a Yate Loon rifle bearing fan. Model D12SH-12, 12V 0.30A. These fans are not known to be as good as some on the market from companies such as Hong Hua (who manufacture some good fluid dynamic bearing models). I was quite surprised to see this fan adopted and will analyse the performance and cooling profile later in the review.

FSP are similar to Seasonic, in that they design and manufacture their own supplies, omitting the need for a third party ‘OEM'. The design inside is well put together, and clean in layout. As some of the photographs above highlight, the secondary capacitors have plenty of exposed airflow from above.

This is a fairly commonplace half bridge topology on the primary side with an LLC resonant converter generating lossless switching. A pair of PWM controllers generate the minor rails. Soldering quality on the PCB is really very good overall.

The Primary capacitor is a TK (Toshin Kogyo) – a quality Japanese brand. It is rated 105C 450V at 680uF output. It also offers OCP, OVP, SCP, OPP. UVP and OTP protections.

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