A Detailed Look
The SilverStone 750W Platinum power supply enclosure features a matte black, scratch resistant finish. The ST75F-PT uses a 120mm Globe Fan (S1202512L) on the bottom for cooling that incorporates a Fluid Dynamic Bearing (FDB) for long life and quiet operation.
The fan speed is automatically controlled by an intelligent fan speed controller that enables fanless operation at low power levels (below 20% load).
The back panel includes an AC receptacle and master power On-Off power switch. The open honeycomb grill allows exhaust air to exit the power supply with minimal resistance and turbulence.
The front panel incorporates nine modular cable connectors, all nicely labeled. The two blue 8-pin connectors are for the PCI-E cables.
The SilverStone ST75F-GS power supply comes with a basic assortment of modular, cables and connectors. The cables are all a flat ribbon-style and black to help facilitate installation with a clean look. Some users may also be looking for a second 8-pin EPS cable/connector or six PCI-E connectors instead of the basic four at this power level.
Note: A detailed description of the cables, connectors and cable lengths were listed in the previous Specifications section.
Under the Hood
Here are a few pictures showing the layout and components inside the ST75F-PT power supply. SilverStone is once again using High Power (Sirfa) as the OEM for the ST75F-PT. The overall layout looks clean with good soldering on the PCBs.
The ST75F-PT uses one Nippon Chemi-Con electrolytic capacitor on the primary side with a mix of Nippon Chemi-Con and Teapo caps on the secondary.
The ST75F-PT power supply is based on a modern LLC resonant circuit design with synchronous rectification and two DC-to-DC converters on the secondary to create the +3.3V and +5V rails from +12V. The two VRMs are located on a small daughter board (located behind the output wiring in the photo below).