SilverStone ST75F-PT 750W Power Supply Review

SilverStone is a long time favorite of many HardOCP readers and editors. We have more than a few in service in the Underground Bunker. Today SilverStone serves up a 750 watt PSU that puts it in the middle of the most competitive PSU enthusiast segment there is.

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Overview

The first thing we are going to look at with the SilverStone ST75F-PT is its packaging, accessories, and documentation. While normally none of these items is a make or break item for a power supply the packaging quite often contains a lot of information about the product we are purchasing. The inclusion of an owner’s manual that provides actual information about our product is also of great help. Accessories are almost unnecessary with a power supply as the unit is self contained, unless it is modular, but there are cases where a manufacturer can include useful accessories to make installation, routing, and use more efficient.

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The packaging for the ST75F-PT is identical, save for the specific capacity changes and such, to the packaging of the ST55F-PT we recently reviewed. Once more, fully 1/3 of the front of the packaging is a "Platinum" band that you aren't going to miss on a store shelf. Also as before, we see a number of features advertised such as "strict 3% voltage regulation," "compact design with a depth of 140mm for easy integration," "100% modular cables," and that it has an "ultra silent 120mm fan with intelligent semi-fanless operation." We also see an 80 Plus Platinum seal on the front of the package and, when we check the 80 Plus website, we do indeed see that this unit has been certified by ECOS/ECOVA as meeting that standard. When we flip to the rear of the packaging, we see the same coverage of pictures and text that we saw with the ST55F-PT. When we move to the sides of the box we find the power table (reproduced below) and the connector count (reproduced below). As always, well it seems like as always, we have to dig out the length of the warranty and it is again just 3 years. As always, the warranty length is still inferior to what you get from just about any of SilverStone's competitors on a comparable product. It shouldn't be surprising that this unit has the same warranty length as the ST55F-PT as they are from the same product line released at the same time, but we have mentioned this warranty length issue a number of times now over the years and nothing has changed (*tap* *tap* *tap* is this thing on? ).

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When we look at the power table for the ST75F-PT, we again see a modern power supply as judged by its power distribution. The ST75F-PT is advertised as having a total 12v capacity of up to 62.5A or ~100% of the unit’s total capacity if necessary. The minor rails feature 5v and 3.3v capacities of up to 22A each with a combined cap of 120W (a small increase over what we saw with the ST55F-PT). Coupled with this output, we find that the ST75F-PT has a total of four PCIe connectors, six Molex connectors, and eight SATA connectors. Overall, these connectors represent an increase in just two PCIe connectors over what we saw with the ST75F-PT. In general, this unit should be fine for the majority of users who are looking for a 750W power supply. However, it certainly could have had a few more SATA connectors. Then again, with SilverStone targeting a shorter overall length users who flock to this unit are probably going to be using smaller cases and, in that case, may have no use for more SATA connectors.

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Once we open the ST75F-PT packaging we find the exact same things as what we saw with the ST55F-PT. There are the unit, cables, power cord, mounting screws, some zip ties, some Velcro straps, and the user manuals. One of the manuals that comes with this unit is 9 pages long in English only and the other is a the booklet of installation instructions and pinouts that we see with just about every SilverStone unit in 11 languages. As before, among this documentation we find the pinout guide, power label, installation instructions, some troubleshooting steps, and the very complete electrical specifications that are actually the most complete we see from any vendor these days. These factors cover the ST55F-PT, ST65F-PT, and the ST75F-PT. As we have stated before in other reviews of SilverStone products, one of the things we don’t find normally in this documentation is the warranty length but today we do find it tucked away in a single vague line. In addition to that, one thing that we have to continue to commend SilverStone for doing is including very complete electrical specifications with their powers supplies. Most brands these days do not show nearly this amount of effort or pride in their work. So, when we see such things from SilverStone it is greatly appreciated. Let's move on to the unit itself now.