FSP Hydro G 650 Power Supply Review

Ripple Measurements

To learn how we measure ripple, please click here.

The following table includes the ripple levels we measured on the Hydro G 650's rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V and 5VSB).

Test12V5V3.3V5VSBPass/Fail
10% Load5.9mV6.3mV5.4mV11.1mVPass
20% Load26.4mV5.7mV7.4mV10.3mVPass
30% Load20.2mV7.0mV8.0mV14.2mVPass
40% Load20.1mV11.1mV9.9mV15.9mVPass
50% Load20.3mV12.4mV10.2mV18.5mVPass
60% Load19.8mV11.0mV10.8mV13.7mVPass
70% Load20.0mV11.6mV12.2mV18.6mVPass
80% Load20.1mV12.9mV13.5mV19.8mVPass
90% Load21.0mV14.0mV14.4mV20.3mVPass
100% Load22.6mV14.6mV16.3mV22.5mVPass
110% Load24.9mV16.3mV17.7mV22.6mVPass
Cross-Load 121.5mV7.8mV8.3mV9.9mVPass
Cross-Load 222.3mV10.2mV16.6mV15.1mVPass

Ripple suppression is very good on all rails. It might not be up to the level of Super Flower's power supplies, but we can still call the Hydro G 650 a ripple-proof PSU that totally covers the needs of enthusiasts looking for clean voltage outputs.

Ripple Oscilloscope Screenshots

The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.

Ripple At Full Load

Ripple At 110-Percent Load

Ripple At Cross-Load 1

Ripple At Cross-Load 2

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14 comments
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  • Onus
    I see a Performance Per Dollar chart, but so far I've not been able to find the price of this unit. What is it?
  • sammy sung
    Hopefully a competitive price scheme. Looks awesome though, very nice aesthetic
  • Aris_Mp
    Quote:
    I see a Performance Per Dollar chart, but so far I've not been able to find the price of this unit. What is it?


    It is 90 bucks

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817104200&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-VigLink2-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3821802&SID=il40akd6as0035wt00053
  • mrjhh
    I remember FSP being an OEM for older computer vendors like DEC, so they definitely aren't a newcomer to the field. I'm glad to see they know how to build a modern supply.
  • Onus
    IMHO FSP has always had a solid but "middle-of-the-pack" reputation; not anybody's first choice, but a lot better than a lot of the junk being sold. Even their Raider units that got very critical reviews were acceptable as budget units in light use. In big box PCs, I'd certainly rather see FSP than HEC or Bestec.
  • jeffunit
    I see "op amp amplifier" mentioned several times in the review.
    What is an "op amp amplifier"
    Doesn't amp stand for amplifier in this context, which expands to op amplifier amplifier?
  • anort3
    Odd naming scheme for a power supply. Hope it doesn't confuse anyone into thinking water goes well with it. :P

    Always good to see some of the larger if less well known manufacturers putting out quality units.
  • Aris_Mp
    Quote:
    What is an "op amp amplifier"


    short for operational amplifier
  • jeffunit
    Quote:
    Quote:
    What is an "op amp amplifier"
    short for operational amplifier


    op amp is short for operational amplifier.
    op amp amplifier is short for operational amplifier amplifier.
    You need to pay more attention to what is written.
  • turkey3_scratch
    Good performing power supply. In terms of voltages and ripple, beats the EVGA GS. I would never hesitate to recommend this unit, if it is priced well of course, which it already is not.
  • lunyone
    Had this been around $60 or so, it would be on my recommendation list. But at ~$90 I'm not as inclined to recommend it. Yes it is a good unit, but $90 just seems a bit steep for a 650w PSU. I'm more inclined to buy a $60-70 PSU for most of the builds that I do (all at least 80 PLUS Bronze rated). I know that this PSU is probably for those that have extra $ floating around or want more than just 80 PLUS Bronze certified PSU's.
  • sammy sung
    The GQ series seems hard to overturn, unless fully modular cabling is an absolute must for the consumer. I've never had an issue with semi-modular that made me cringe and exclaim that I should have forked out the extra $10-20. Aesthetics are more of a deciding factor for me, and realistically this edges out the HX series for that blue/white scheme, as far as I'm concerned at least.
  • Archaic59
    It's nice to have another unit to add to the short list of power supplies worth recommending. I'd like to see a 550 watt unit added to this line.
  • turkey3_scratch
    It runs for $81 now:

    PCPartPicker part list / Price breakdown by merchant

    Power Supply: FSP Group Hydro G 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($81.50 @ Newegg)
    Total: $81.50
    Prices include shipping, taxes, and discounts when available
    Generated by PCPartPicker 2016-03-05 21:53 EST-0500

    Which is comparable to the EVGA GS:

    PCPartPicker part list / Price breakdown by merchant

    Power Supply: EVGA SuperNOVA GS 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($79.99 @ Amazon)
    Total: $79.99
    Prices include shipping, taxes, and discounts when available
    Generated by PCPartPicker 2016-03-05 21:54 EST-0500

    Between the two, I'd take the FSP. I think I'm going to start making this FSP a common recommendation myself.