INTRODUCTION

    Power supplies rarely get the credit they deserve, yet they’re the backbone of any dependable PC. They manage voltage fluctuations, protect against electrical faults, and ensure that high‑draw components never starve for power. In an era where GPUs can pull hundreds of watts in milliseconds, the quality of your PSU directly influences system behavior. Builders who value stability know that efficiency ratings and internal design matter just as much as raw wattage. With that perspective, we’re taking a closer look at one of the newest units introduced in the global market, the PSFX‑1200 from Formula V Line.

    Welcome to Formula V Line – Make it Real, Make it Possible. Formula V Line is your trusted source for high-quality, stylish, and functional PC components. We offer a wide range of products including computer cases, power supply units (PSUs), cooling systems, fans and gaming chairs — all designed to bring your build to life. Whether you’re aiming for a clean, minimalist setup or a powerful gaming rig, our products are made to deliver performance, durability, and ease of use. From compact SFF cases to fully modular PSUs with the latest ATX 3.1 and PCIe 5.1 support, every detail is crafted with care. At Formula V Line, we believe in empowering your creativity and pushing the limits of what’s possible. Make it Real, Make it Possible. With Formula V Line.

    The latest PSFX line of SFX factor power supply units by Formula V Line currently includes 1000/1200W output models both of which are fully modular, ATX 3.1 and PCIe 5.1 compliant and 80 PLUS Platinum certified (up to 94% efficiency). The 1200W unit which I've had on my test bed for 13 days now features a single 12V-2x6 power connector (600W), three 6+2 pin PCIe power connectors, single strong +12V rail (100A) and a peak power output of no less than 2400W (for up to 100ms - once again however this is not something i can test). The PSFX-1200 also sports synchronous rectification topology with DC to DC design, active PFC, semi-fanless mode for its 120mm hydro bearing fan (starts spinning after a certain load), high-quality Japanese capacitors and a full array of electrical protections including over-voltage (OVP), under-voltage (UVP), short-circuit (SCP), and over-power (OPP). Just like with most of its competition Formula V Line covers their PSFX line with a 10-year limited warranty.

SPECIFICATIONS AND FEATURES

PACKAGING AND CONTENTS

As usual the front of the box is taken by a product picture, company logo and the model output (strangely enough the output was not checked on my sample).

The electrical tables of both available outputs are printed at the base of the box as seen above.

At the rear we find yet another product picture, the main features and the available modular cables for both outputs.

The PSFX-1200 is placed between two pieces of foam, modular cables are placed inside a storage pouch and the rest of the bundle is placed in a small plastic bag.

Along with the PSFX-1200 inside the box you'll find the power cord, modular cables, 4 cable ties, 4 cable straps, 4 mounting screws and 4 mounting thumbscrews.

THE PSFX-1200 EXTERIOR

The PSFX-1200 has low profile cables, including for the 12V-2x6 connector.

Measuring 125mm wide, 130mm long and 63.5mm tall the PSFX-1200 is an SFX sized power supply unit.

The 120mm hydro bearing fan has 13 blades and seems to be a high-speed one.

A large sticker covering the entire right side of the enclosure has the electrical table printed on it.

There are 10 modular ports at the front of the unit which in my sample weren’t  tagged (from what I know there should be a sticker right over them).

The power on/off switch, power port and the semi-fanless switch are all placed at the rear.

THE PSFX-1200 INTERIOR

This model uses a 120mm hydro bearing fan manufactured by Globe Fan that spins up to 2100RPM.

Enhance electronics seems to be the OEM behind this model and if memory serves I've seen this exact model released by some well-established companies as well.

Primary capacitors are manufactured by Rubycon and are certified for use up to 85 degrees Celsius.

Secondary capacitors are manufactured by unicon (also Japanese) and are certified for use up to 105 degrees.

TEST BED

TESTING METHODOLOGY

     Using a dedicated measurement instrument such as a Chroma or a SunMoon to test power supply units is without doubt the most ideal and accurate way (not to mention the fastest) to do that currently. However, it's certainly not the only way there is and so pretty much anyone can test a power supply unit just by using a test rig. Certainly, limitations do apply and so you can't really push a 1000W power supply to its limits if your system only uses 500W at peak loads and that's why over the years we saved certain hardware components for the purpose of building a dedicated PSU test rig. True it may not be as accurate as the above mentioned solutions, but it comes really close and is in fact much closer to real world usage. So as always, we ran several games with maximum graphic options enabled at a resolution of 2560x1600 in order to stress every hardware component and increase the overall power demands of the system. The Passmark BurnIn Test was also used to overstress the components in an effort to provide the most accurate results possible. As a final test we also used the latest OCCT software and its dedicated PSU testing suite since it can really bring a power supply to its knees after inside a few minutes.

   Rail stability was checked/measured with the CPUID Hardware monitor and a Metex multimeter which also recorded the system load in idle and in load. As always try to remember that the power consumption numbers listed in the graph are the highest (Peak) ones recorded during the entire duration of the tests and not the average ones. Noise levels coming from the fan were recorded using the high precision HD600 ExTech Sound dBA Meter from the rear of the unit and at a range of no more than 5-10cm. Readings under load are recorded the exact moment we manually switch the fans of all graphics cards from full speed to almost zero, that way the fan of the power supply does not have enough time to slow its RPM and so by doing this we get very accurate noise level readings. Needless to say, in order to get 100% accurate readings, you need to have a noise isolated room for that exact purpose, something which is quite impossible unless you are working inside a real lab (some people use very small noise insulated boxes but due to their size both heat and noise exceed normal levels and so the results can't really be considered to be 100% accurate, nor realistic for that matter). Also do take into account that since all noise measurements take place from just 5-10cm away the final noise levels to reach your ears will be considerably less.

* After well over 10 years of testing PSUs the Intel Core i7-920 CPU of this rig failed and so we replaced it with a Xeon X5660 (we also swapped the GA-X58A-UD7 for the G1. Assassin).

TEST RESULTS

CONCLUSION

    Once again I find myself testing a product by a company I haven’t encountered in the past and well, the PSFX-1200 didn’t disappoint. Rail stability is very good, the 80 PLUS Platinum efficiency certification is only second to the Titanium one and as for noise levels although not the quietest model to date if you don’t climb over 1000W it will not stand out. Equipping the PSFX-1200 with two primary capacitors that can be used up to 85 degrees Celsius is not something we see a lot with models advertising the use of Japanese capacitors (although I seriously doubt this will prove to be an issue - still for some people it just might be enough for them to choose something else), but this choice was probably due to SFX height constraints (105 degrees capacitors are taller).

    Availability is usually the issue with new players in the market and unfortunately this also applies for Formula V Line since their PSFX-1200 power supply unit is hardly available anywhere. Some stores do carry it for around 255Euros but most of those are situated inside of Russia and so they are hardly accessible by most people. Leaving out availability however the PSFX-1200 model delivers on most areas, it’s SFX sized (making it ideal for mATX/mITX builds), has very good rail stability and features the 80 PLUS Platinum efficiency certification so the Golden Award is in order.

PROS

- Good Build Quality
- Very Good Rail Stability
- ATX 3.1 & PCIe 5.1 Compliant
- 80 PLUS Platinum Certified
- SFX Sized
- 1200W Output (12V-2x6 600W)
- Electrical Protections (OVP/SCP/OPP/UVP)
- 10 Year Limited Warranty

CONS

- Extremely Limited Availability
- Primary Capacitors (Up To 85 Degrees Celsius / For Some)