Page 4 - Minor Tests and Conclusion
Power supplies are interesting products, because often, reviews of products in this category are conducted and tested in methods that make it difficult to distinguish one power supply from another. Many aspects must be taken into consideration. Certain criteria consist of efficiency, noise, power ripples, and of course the ability to pull out the rated specifications. Because many cannot afford such equipment to obtain results regarding those aspects, articles covering power supplies often come out with less than adequate and acceptable information. As this is a product report -- not a review -- what we are doing is a close examination of the power supply and the internal hardware and build. But what we can do for you is do some minor testing with the results we can present to you with and let other review sites with professional equipment show you the actual test results. We are not going to try to create useless test results by installing the power supply into the latest gaming rig and try to take readings from that, as this is not even remotely the correct way to test power supply units. We understand that many websites do that as a means of load testing, but the results, even if you use an oscilloscope and multimeter at each output location, it is not sufficient, nor does it accurately reflect the performance of the power supply.
Using our power supply tester which exerts minimal load on the power supply, the initial consumption was 8W as measured by our wall meter unit, indicating that the basic load-free power consumption of the power supply is very good. Independent sources with professional load testing equipment showed the FSP Hydro PTM X Pro 1000W delivered excellent efficiency for its class, voltage regulation, and ripple across all rails. This power supply unit is 80 Plus Platinum rated, but not Cybenetics ETA rated at press time.
Voltages with minimal load are accurate, which is a basic requirement of power supplies out of the box. This power supply is ATX 3.0 compliant and officially supports Alternative Sleep Mode with 100 to 150ms PG specifications, so it looks like the PSU tester I used was not fast enough to pick up the true PG signal. The ATX design specifications state a PSU's PG is required to be between 100ms and 500ms, with 250ms maximum for Non-Alternative Sleep Mode and 150ms for Alternative Sleep Mode.
Active power correction is important to correct AC load line loss. In AC power, there are three components to it, as there is a phase difference between current and voltage. This makes up the power triangle, which consists of the following: Average usable power (P, measured in watts), reactive power (Q, denoted as VA-R), and total power (S, written as VA). While they all have the same physical units, it is not the same thing as aforementioned. What we want is the average usable power with as little wasted reactive power as possible. The total power provided over the AC line is the magnitude of the two combined (sqrt(P^2+Q^2)). Power factor can then be easily calculated by P divided by S. The ideal value is 1.00, and this is where active PFC comes in. The FSP Hydro PTM X Pro 1000W has active PFC, and the power factor will approach 0.99 with a nominal load.
The FSP Hydro PTM X Pro 1000W is a silent to quiet power supply, depending on the amount of power being drawn. Under idle level loads, or less than approximately 30%, the Hydro PTM X Pro 1000W is inaudible because the fan can be shut off completely in Eco Mode. Under moderate to high loads, which is above 30%, the Hydro PTM X Pro 1000W's fan curve is pretty aggressive, so while it is reasonably low noise to start, it is not exactly quiet as it ramps up. Personally, I found the Protechnic Electric MGA12012XF-O25 to be reasonably smooth, but will become audible at high speed. While this is very subjective, I am quite a picky person on noise. On a scale from 0 to 10 where 0 is silent and 10 is the loudest, I would rate the FSP Hydro PTM X Pro 1000W to be at 0.0/10 when the fan is off, because, well, the fan is off. Above that, I would peg it at 3.0/10 acoustically under moderate loads. This PSU is not Cybenetics LAMBDA rated for noise. If you are a silent PC enthusiast, the FSP Hydro PTM X Pro 1000W will fit the bill for loads below 300W, but when the fan kicks in, the profile is pretty aggressive, and you will be able to hear it.
FSP provided this product to APH Networks for the purpose of evaluation.
The FSP Hydro PTM X Pro 1000W is a fully modular Platinum-grade power supply that delivers a lot of power in an extremely compact package with a depth of only 13cm. Internally, it is built on a cleanly laid out high-end FSP platform with a very good selection of components, including 100% Japanese-made capacitors. Furthermore, it is ATX 3.0 and PCIe 5.0 compliant for all your latest hardware. According to others with professional load testing equipment, the FSP Hydro PTM X Pro 1000W delivers excellent performance. As an added bonus, the inside has a conformal coating against dust, stains, and humidity for reliable operation harsh environments. Should anything go wrong, FSP includes a 10-year warranty. The kilowatt-spec Hydro PTM X Pro features an excellent fluid dynamic bearing fan and supports fanless operation for loads up to 30% like all the PSUs in the Hydro series. However, the fan profile is aggressive, so be aware that you will be able to hear the PSU when it is loaded up. At a retail price of $270 at press time, the Hydro PTM X Pro 1000W is a reasonably priced power supply for the power, performance, and features it offers.
1. Introduction, Packaging, Specifications
2. Physical Look - Outside
3. Physical Look - Inside
4. Minor Tests and Conclusion