SilverStone NJ700

SilverStone is a company best known for its high-quality cases but their 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 SilverStone Nightjar NJ700 700W Fanless PSU model with product number SST-NJ700 in the Nightjar series, which is produced in conjunction with Seasonic.

Seasonic is one of the older companies producing consumer power supplies having been founded in 1975 and entering the PC power supply production market in 1980. During that more than 40 years as a company, Seasonic has cultivated lines of power supplies that are today some of the standard-bearers for efficiency and quiet computing. This focus, and its reputation for quality, has to lead to an explosion in production as Seasonic can be found providing OEM services on various model lines for Antec, XFX, Corsair, PC Power and Cooling, and of course under its own Seasonic brand.

SilverStone NJ700 700W Fanless Power Supply 0dba Fan-less banner

The Strong Silent Type Goes To The Gym

The SilverStone NJ700 is certainly not the first power supply we have seen from SilverStone nor it is the first fanless power supply we have seen. However, it is the largest capacity fanless unit we have seen.

Indeed, today, we see the NJ700 is coming in at 700W which is one of the larger fanless units on the market. That might worry us some if it was from a brand other than SilverStone. But, with the general pedigree of SilverStone fanless power supplies, and SilverStone’s ingenuity, over the years we feel much more confident that this unit might actually tick all the right boxes and deliver for us today. Before moving on to see if the NJ700 can indeed deliver, what does SilverStone have to say about this unit:

NJ700

80 PLUS Titanium 700W Fan-less power supply

■ Fan-less thermal solution, 0 dBA acoustics

■ High quality construction with all Japanese capacitors

■ 100% modular cables

■ Strict ±2% voltage regulation and low ripple & noise

■ 24/7 continuous power output with 45℃ operating temperature

■ Class-leading single +12V rail

■ PCI-E 8pin and PCI-E 6pin connectors support

Let’s move on now and see what we can expect when a user purchases the SilverStone NJ700 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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14 Comments

  1. Good review. I think for me, once you mention Seasonic the rest is pretty well known. I hope they keep it up and other OEMs take note.
  2. WHATS OPP ON THIS? :ROFLMAO:


    Batman-Slapping-Robin-Meme-Explained.jpg

    I don’t want to have to get the load tester repaired any more than neccesary.

  3. haha I’m just busting chops.

    I gotcha. But, destructive testing of a power supply results in unexpected events. Each time I have to get the load tester repaired and recalibrated and certified it starts a $2k. So, not something I like to do.

  4. I gotcha. But, destructive testing of a power supply results in unexpected events. Each time I have to get the load tester repaired and recalibrated and certified it starts a $2k. So, not something I like to do.

    Well, in my opinion, OPP testing should not be destructive. Unless the PSU is malfunctioning or you just really wanted it to be and juiced it hard (like 480V 3p).

    Hitting a PSU with some overload, 125-150%, shouldn’t cause it to explode and should gracefully trigger OPP. Most of our industrial tests are to 150% of rated.

  5. Well, in my opinion, OPP testing should not be destructive. Unless the PSU is malfunctioning or you just really wanted it to be and juiced it hard (like 480V 3p).

    Hitting a PSU with some overload, 125-150%, shouldn’t cause it to explode and should gracefully trigger OPP. Most of our industrial tests are to 150% of rated.

    But, like I said before, there is not a spec. And without some sort of definition we have no idea where it is and where a catastrophic load will happen. So, until it is defined somewhere we can’t do a legitimate test for it.

  6. But, like I said before, there is not a spec. And without some sort of definition we have no idea where it is and where a catastrophic load will happen. So, until it is defined somewhere we can’t do a legitimate test for it.

    Ask the manufacturer, if they advertise the feature, it has a setpoint.

    That, or treat it like overclocking and just step it up slowly.

  7. Ask the manufacturer, if they advertise the feature, it has a setpoint.

    That, or treat it like overclocking and just step it up slowly.

    This is on the list of expensive things I’d like to see.

    Just note that they’re expensive, and as @Paul_Johnson notes above, prohibitively so.

    I’ll also say for the sake of perspective – while you want to know how a PSU behaves close to its limit, that’s your ‘reserve’. You’d usually want to leave say a 20% or more bit of ‘on paper’ headroom. Base your estimates on how hard you want to push the system and what components you expect, and add up the power draw, then leave some headroom above that.

    If you’re pushing a PSU close to its limit, you’ve made a.. miscalculation somewhere along the line :).

  8. Ask the manufacturer, if they advertise the feature, it has a setpoint.

    That, or treat it like overclocking and just step it up slowly.

    Well see, that is the problem. Most of the "manufacturers" are not manufacturers and don’t know (though SilverStone is not one of those that does not know). Also, I would have to have not just what they set it to but how they designed the protection. Then write a specific test for each and every unit that caters to their exact design. That means there would be no standardization to be able to compare units to. And without some sort of standardized definition we have no idea where a catastrophic load will happen. So, until it is defined somewhere we can’t do a legitimate test for it.

  9. What? You don’t like ground dwelling birds for your power supplies?

    Birds wouldn’t have been my first choice, but knowing that it is a bird name makes a lot more sense than some sort of jar one uses at night.

    My mind was drawn in the direction of chamber pots!

  10. My mind was drawn in the direction of chamber pots!

    Somehow – I blame Hunger Games – the name pattern sounded like a bird name. But like so many other names that are nominally English coming from countries where it isn’t a first language, I pretty much just accept stuff as it comes. I read plenty a pre-2000 motherboard manual too.

    So ‘chamber pot’ is fair game, IMO!

    On the other hand, with Gigabyte’s fiery ordeal still shaking out and questions on how such occurrences might be prevented, the ‘fanless’ nature of this Silverstone unit just now caught my eye.

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