FSP VITA GM 1000W ATX v3.1 PSU Review

Efficiency Normal, Light & Super-Light Loads

Efficiency is high at normal loads. At light loads, the average efficiency is high at 230V but low at 115V because of the very low-efficiency score with 20W loads (see the screenshot below). Lastly, with a 2% load, the PSU exceeds the 70% Intel recommendation.

Instead of an HTML table, here is a screenshot of our Faganas ATE software, which controls and monitors everything. At Test #1, with a 20W load, efficiency is low, as you can see, affecting the average efficiency score at light loads (20-80W).

Average Efficiency

The unit’s average efficiency is high enough, especially at 230V.

Average PF

The APFC converter needs tuning for (way) higher power factor readings.

Average Efficiency 5VSB

The 5VSB rail is efficient.

Vampire Power

Vampire power is low at 115V but notably above 0.1W at 230V.

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16 thoughts on “FSP VITA GM 1000W ATX v3.1 PSU Review

  1. In this review it’s stated that it’s a good psu if you get it below msrp. I would be able to get the 1000w unit for just around 100€. Is there anything better in this price class or should just get it?

  2. hello 🙂

    in the description is stated it is a “Platinum certified” PSU, but in the image and the official website you can only see “Gold certification” 🤔

  3. What exactly means “terrible” fan? Is it about the noice it produces or about it’s overall reliability and term of service?

  4. Hey, thank you very much for your informative and professional reviews. I’ve found a lot of useful information on this site, and it’s clear that you know what you’re doing. I’m currently using this power supply, but I’ve also had several other ATX 3.0 / 3.1 power supplies in the past, from Corsair and Superflower.

    I’ve had and still have the following problem with all of them: I hear a static high-pitched noise that drives me crazy. With some power supplies, it even hurts my ears. I have very good hearing and seem to be very sensitive to this. I’m slowly getting desperate. Either the problem lies with the wiring in my apartment, or I can’t handle this LLC switching. I’ve already swapped motherboards, tried different cables, power strips with filters—I’m at a loss. Can you recommend a power supply between 850 and 1000 watts that has good filters and produces little to no noise during operation? And yes, you’re right, the fan on that FSP is terrible 🙂

      1. Thanks for the tip. At the beginning of the year, I had a BeQuiet Pure Power 850, and it was absolute garbage. The fan wobbled, there was noticeable coil whine—much worse than what I’m currently dealing with—and the cables were terrible: sharp-edged and not particularly well-fitting. I remember struggling for about 30 minutes just to plug in the 24-pin motherboard cable, almost destroying the motherboard in the process. The 12V high-power cable was so stiff that I couldn’t close my big tower anymore, and when I tried to plug in the other side, the connector on the PSU itself got pushed inward. I remember it so well because I thought to myself, ‘Never again BeQuiet.

        I’m not exactly rich or anything, so spending €300 on a power supply, especially when I’ve only got a 13600K in my system, is a bit too much for me. Do you maybe have another alternative recommendation?

        1. Pure Power is the low-end from be quiet! Look typically Corsair and Super Flower are the best in this section, if you tell me that you had issues with them too, not many other brands remain to suggest. It is more like a trial and error case then.

          1. You’re probably right; I’ve come to the same conclusion. Maybe the problem lies elsewhere, but I just can’t figure it out. Superflower has been the best in every respect so far.

          2. Can you recommend a good, quiet, and smooth-running fan for the power supply? I believe it’s 120mm. I noticed that the connector is two-pin.

          3. You should use a fan that cover’s the PSU’s needs, not just a random fan. Also the two pin connector, you will have to install it on the new fan.

  5. I saw somewhere a presentation of this power supply and analysis of the interior, as Bulk Caps there was Toshin Kogyo (450V 680uF 105*C).
    In your case I see nippon is it possible that you got a better sample or FSP released a revision in such a short time and all VITA GM units have caps from Nippon Chemicon?

    I realize that both are Japanese capacitors, but still Chemicon is famous for being more reliable than TK.

    This presentation also said: “There are Elite capacitors on the rectifier.”

    Greetings and thanks for the test.

    1. Everything is possible, unfortunately, but the fact is that “Japanese” caps don’t offer better performance. Still, they do keep their good performance longer, so for a review’s purpose, they don’t affect the overall performance significantly.
      For me the main issue is the fan.

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