Our load tests utilize a couple of FAST ATE active load testers, and a variety of other equipment such as an oscilloscope, power conditioner, temperature probe, and a power consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there, and progressively load down the PSU up to the power supply's limits, or 1000W; whichever comes first. Since our test equipment's limits are higher than that of the SilverStone ST30SF 300W power supply, we can test it to the maximum.
The above tests represent typical loads that we have measured from various systems, and are meant to give a rough idea of where your computer might fall in line with our tests. Please keep in mind that each system is different, and actual loads can vary greatly, even with similar hardware.
Let's start by taking a look at the voltages, to see how well this unit did during testing. Starting with the 12V rail, we see 1% regulation from start to finish, with a total drop of .03V. The 5V rail managed to stay within 1% of specification, with a total drop of .03V from start to finish. Moving towards the 3.3V rail, we see that regulation was within 1% of specification, with a total voltage drop of .02V.
DC Output quality for the SilverStone ST30SF 300W was good, and well within specifications. During Test One, we saw 16mV of noise on our scope at 75% load. When we increased the loads in Test Two, the ripple climbed to 26mV at full load.
The SilverStone ST30SF 300W is rated for 80 PLUS Bronze efficiency. This means that the power supply must perform at 82% /85% / 82% efficiency, at 20% /50% / 100% loads respectively. As you can see, the ST30SF-G 300W passed on our bench without issue.
The SilverStone ST30SF is the smallest unit that we've ever taken a look at here at TweakTown. While we primarily focus on enthusiast type equipment, it is important to not forget about the smaller items. There are quite a few enthusiasts who will get great use out of a unit such as the SilverStone ST30SF, whether it be in low power office machines, HTPCs, or low power gaming rigs for friends and family.
The ST30SF is a great representation of the quality SilverStone encapsulates in all of their products. Even though it is a low wattage unit, it still performs just like any other SilverStone unit. Voltage regulation is within 1% of specification across the board, just like we expected, and the DC output quality is just as good. The efficiency of the unit is also right where it is expected to be for an 80 PLUS Bronze rated unit, and we wouldn't expect any different.
Rounding out the power supply is the price of the unit. Yes, there are cheaper units on the market, but it is often difficult to find a power supply that has ANY resemblance of quality to it when you look at low wattage units. The premium that you pay over a no-name unit is well worth it. The peace of mind that this unit entails over something you've never heard of, is often worth a few extra bucks, no matter how hard earned they are.
What all this boils down to is another great power supply unit from SilverStone. It is a great unit without a doubt. The sad thing about it all is that the power supply is sure to have limited use. There are still many who are stuck on the concept that you need massive amounts of power for a modern computer, when the truth of it is that 500W is more than enough for a single high-end GPU and CPU. As there are literally hundreds of thousands of people who have neither, and require much less than they are led to believe, I can only hope that this article reaches a great majority of them, so that they can realize there are many more options than they realize at their fingertips.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction, Specifications, Availability and Pricing]
- Page 2 [Packaging]
- Page 3 [Inside the Box]
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