FSP Hydro G PRO 1000W Power Supply Review

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DC Output Quality

For those of you that are curious as to some of the reasoning and equipment behind our PSU testing program here at TheFPSReview, we have put together an introduction for you that shares a lot of the behind the scenes of the program. This program is based on what the author developed at [H]ardOCP and utilizes the equipment bequeathed to the author by Kyle Bennett. The testing we are conducting today is exactly as described in that document and will continue with our examination of the DC Output Quality.

Control Test Graphing

This image is the blank background control test on an unused connector from our SM-8800 during the testing of the FSP Hydro G PRO 1000W. This lets us determine what the background noise looks like during testing.

120v Input

100v Input

Test #1 is equal to approximately 25% of the rated capacity of the FSP Hydro G PRO 1000W at 45c. This makes Test #1 equal to 268W by loading the 12v rail to 20a, the 5v rail to 2a, the 3.3v rail to 1a, the +5vsb to 2a, and the -12v to 0.3a. The Hydro G PRO 1000W is starting off a bit active on all of the rails we monitor. The 12v rail is peaking at ~30mV of ripple/noise, the 5v rail is peaking at ~15mV of ripple/noise, and the 3.3v rail is peaking at ~20mV of ripple/noise.

120v Input

100v Input

Test #2 is equal to approximately 50% of the rated capacity of the FSP Hydro G PRO 1000W at 45c. This makes Test #2 equal to 492W by loading the 12v rail to 38a, the 5v rail to 3a, the 3.3v rail to 2a, the +5vsb to 2a, and the -12v to 0.3a. Test #2 sees the same results as Test #1. The 12v rail is coming in at ~30mV of ripple/noise while the 5v rail is coming in at ~25mV of ripple/noise and the 3.3v rail is coming in at ~20mV of ripple/noise.

120v Input

100v Input

Test #3 is equal to approximately 75% of the rated capacity of FSP Hydro G PRO 1000W at 45c. This makes Test #3 equal to 745W by loading the 12v rail to 58a, the 5v rail to 5a, the 3.3v rail to 4a, the +5vsb to 2a, and the -12v to 0.3a. Test #3 sees the 5v and 3.3v rails come in at ~20mV of ripple/noise again while the 12v rail hit ~30mV of ripple/noise.

120v Input

100v Input

Test #4 is equal to approximately 100% of the rated capacity of the FSP Hydro G PRO 1000W at 45c. This makes Test #4 equal to 997W by loading the 12v rail to 80a, the 5v rail to 4a, the 3.3v rail to 2a, the +5vsb to 2a, and the -12v to 0.3a. In the final regular test, we see the 12v rail peaking at ~35mV of ripple/noise while the minor rails are peaking at ~25mV of ripple/noise.

Torture Test

The Torture Test is equal to approximately 80% of the rated capacity of the FSP Hydro G PRO 1000W at 45C. This makes the Torture Test equal to 808W by loading the 12v rail to 62a, the 5v rail to 7a, the 3.3v rail to 5a, the +5vsb to 2a, and the -12v to 0.3a. At the end of the Torture Test, we see the 12v rail peaking at ~25mV of ripple/noise while the 5v rail is peaking at ~15mV of ripple/noise and the 3.3v rail is peaking at ~20mV.

DC Output Quality Summary

The overall DC Output Quality of the FSP Hydro G PRO 1000W is good. The ripple/noise values started the day off a bit active across the board but barely grew from there. Overall, the Hydro G PRO 1000W ended up posting a peak trace amplitude on the 3.3v and 5v rails of ~25mV while the 12v rail hit ~35mV of ripple/noise. However, the ~25mV value on the 3.3v and 5v rails is hitting 50% of the limit so that is not that great. The other item of note here is that, in a relative sense, this unit is not doing quite as well since it trailed the SilverStone ST1000-PTS. So, all in all, the results are good, but they aren’t great, and they aren’t the best we have seen. Let’s move on now and see how all of this wraps up!

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 The FPS Review.

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