SilverStone SX1000 1000W SFX-L Power Supply Review


The SilverStone SX1000 packaging is virtually identical to the SX750 packaging. The front of the package is bare of information save for the 80 Plus Platinum seal. When we check the 80 Plus website we find this unit listed so we will take a look at this a little bit later. The rear of the packaging has, again, gone a bit minimalist but it does have a fan noise graph, efficiency graph, and some advertising about voltage regulation.

We also find the power label (reproduced below) and the connector count (reproduced below). The side of the package has some advertising including “Dual Ball(sic) Fan”, “All Japanese capacitors”, “Full modular”, etc. Lastly, the SX1000 carries a 5-year warranty.

SilverStone SX1000 1000W SFX-L Power Supply connector type table
SilverStone SX1000 1000W SFX-L Power Supply voltage and wattage output table

The SX1000 is advertised as being a single 12v rail power supply with a capacity up to 83.3A (or ~100% of the unit’s capacity) if necessary. The minor rails (5v and 3.3v) have a capacity of 25A each and the combined capacity of those two rails is 125W. Combined with these outputs, we find that this unit has 2 EPS connectors, 6 PCIe connectors, 8 SATA connectors, and 3 Molex connectors.

Once we open the SilverStone SX1000 packaging we find the power supply, mounting screws, modular cables, the power cord, and the user manuals. The user manuals come in two parts covering ~14 pages for just this model currently. As usual, SilverStone provides some of the most complete documentation out there with the only real gripe being about the warranty information disclosure being that we have to look somewhere else. Let’s move on to the unit itself now.

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 Power Supply Editor for one of the truly early, groundbreaking, and INDPENDENT PC enthusiast sites ([H]ardOCP) until its mothballing in April of 2019. Paul now brings the same flair and style of his power supply reviews to

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