SilverStone SX1000

SilverStoneTek is a company best known for its high-quality cases but its product lines extend into other components such as cooling, power supplies (of various model lines that range from 300W to 1350W in DC output), fans, and storage solutions. SilverStone has built up this impressive product repertoire since its founding in 2003. For this review, we are looking at the SX1000 (model number SST-SX1000-LPT) which is one of SilverStone’s SFX (small form factor)-L products. It is produced in conjunction with Enhance.

Enhance Electronics Co. Ltd. was founded more than 30 years ago in 1986. While a major power supply OEM Enhance is not nearly as well known to most users as some other OEMs as its core business focus has been outside of the desktop market in areas such as servers, embedded, and telecom markets. However, its products have started to surface in the US consumer realm in the last year or so under the likes of SilverStone, Silverpower, Antec, Cooler Master, and GIGABYTE, as well as the occasional Enhance branded model.

SilverStone SX1000 1000W SFX-L Power Supply banner

10lbs In A 5lb Sack? How About 1000W’s In A SFX-L Sack?

The SilverStone SX1000 is the first SFX-L unit we have seen from SilverStone. However, we have seen three standard SFX units from SilverStone before here at TheFPSReview. So, while we have seen small units with huge capacities from SilverStone before, we have not seen this slightly larger SFX-L form factor before.

This particular unit is probably a bit more interesting than the most recent SFX unit we saw from SilverStone on that basis alone. However, there is a second big surprise from this unit; 1000W of power! Now, since this product is coming to us from what is SilverStone’s wheelhouse, we have great expectations from this tiny power supply and what SilverStone can wring out of it. However, before we get too far ahead of ourselves, let’s first see what SilverStone has to say about this unit:

■ SFX-L form factor for use in small form-factor computers

■ 1000W continuous power output rated for 24/7 operation

■ Class-leading single +12V rail with 83.3A

■ High efficiency with 80 PLUS Platinum certification

■ Silent running 120mm dual ball bearing fan with advanced semi-fanless operation

■ 100% modular short cables with flexible flat arrays

■ Strict ±3% voltage regulation and low ripple & noise

■ 24/7 continuous power output with 50℃ operating temperature

■ High-quality construction with all Japanese capacitors

If you have never heard of the SFX-L form factor before, this special form factor has a longer depth than SFX power supplies.

Let’s move on now and see what we can expect when a user purchases the SilverStone SX1000 power supply in retail in terms of documentation, accessories, cable count, rail layout, output characteristics, and general build quality.

Paul Johnson

Paul is a long time PC hobbyist and tech enthusiast having gotten his start when he broke his first C64 quickly followed by breaking his first IBM XT. Most notably however, for 12 years, he served as the...

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5 Comments

  1. Excellent review as always Paul! I have a question though. When you wrote:

    In addition to that, we saw efficiency that ranged from 8 88.90% to 91.02% efficient at 120v AC input and 87.18% to 90.18% efficient at 100v AC input. These numbers would be very good for any unit, but this is not just any unit it is a 1000W SFX-L unit! On the flip side, this unit did miss its advertised 80 Plus Platinum levels by up to 1%.

    Doesn’t that constitute a fail for testing?

  2. Excellent review as always Paul! I have a question though. When you wrote:

    Doesn’t that constitute a fail for testing?

    Seems like many, if not most, units miss their 80 plus rating in real life testing. The rating is probably done under very ideal and known conditions.

    That, and 1% could very well just be instrument and testing error.

  3. Seems like many, if not most, units miss their 80 plus rating in real life testing. The rating is probably done under very ideal and known conditions.

    That, and 1% could very well just be instrument and testing error.

    Oh, I’m not saying that the unit is bad at all, but just pointing out the fallacy in their marketing being a reason to fail the unit.

  4. Seems like many, if not most, units miss their 80 plus rating in real life testing. The rating is probably done under very ideal and known conditions.

    That, and 1% could very well just be instrument and testing error.

    There is also component variations and such that once all of those stack you get different numbers from different units in the same batch even.

  5. I’m still wondering what the use-case is.

    I mean really, who did they build this for?

    On the one hand, you have an efficient delivery of 1000w of DC in a compact size.

    On the other: you have 1000w of power delivery available that you’d very likely not want to try to cool in a small space

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