Voltage Regulation

+3.3V Regulation
Load Voltage
10% +2.42%
20% +2.12%
50% +1.21%
80% +0.61%
100% +-0%
110% -0.61%

 

+5V Regulation
Load Voltage
10% +1.80%
20% +1.40%
50% +0.60%
80% -0.20%
100% -1.40%
110% -1.80%

 

+12V Regulation (Worst Rail)
Load Voltage
10% +1.92 %
20% +1.75 %
50% +1.50 %
80% +0.42 %
100% +0.33 %
110% +0.17 %

Like most PSUs the Antec HCG 520W has a low voltage drop on +12V; even at overload the voltage is above 12.00V, which is a good sign for a strong single rail. The other rails also perform well. +3.3V starts high but that shouldn't be a problem since the measurement is still within specification. +5V ends like it starts with a 1.8% difference to the optimal value.

Ripple and Noise

+3.3V Ripple Quality
Load Ripple and Noise
10% 7mV
20% 8mV
50% 10mV
80% 11mV
100% 13mV
110% 16mV

 

+5V Ripple Quality
Load Ripple and Noise
10% 5mV
20% 6mV
50% 8mV
80% 9mV
100% 10mV
110% 11mV

 

+12V Ripple Quality (Worst Rail)
Load Ripple and Noise
10% 9mV
20% 11mV
50% 12mV
80% 20mV
100% 35mV
110% 38mV

The HCG-520 shows slightly better results than the 750W version. +12V stays under 40mV while +3.3V and +5V don't even reach the magic 20mV level. The value on +12V increases a lot when running 80% load or more, but the results are still impressive. With good quality outputs, PCs using this PSU should experience fewer component failures and be more likely to last a long time.

Interior Noise, Efficiency, and PFC
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  • radium69 - Tuesday, May 31, 2011 - link

    Great review,
    Glad to see Antec doing well in the power supply business especially the "Gamer" series.
    Also for $60 you can't really go wrong with it. And its efficiency on 230V is simply remarkable at lower loads.

    Only problem is that we get ripped off here in the Netherlands...
    The model currently costs at it cheapest! 72 euro = $103
    I remember I bought my 750W OCZ GameXtream (HQ components, great power supply) for 90 euro. That was like 4 years ago...

    European markets suck...
  • dingetje - Wednesday, June 1, 2011 - link

    I am (a dutchie) in Taiwan and Antec hcg 520 costs here just over 2900 TWD which around 72 Euro (calculated with XE currenc converter).
    So this is the current streetprice here in Taipei. (I could probably haggle a few euro's off but no more than 5, and probably only even half of that.)
    Weird how those prices are the same.

    By the way, I have always wondered why hardware prices in the USA are so much lower compared to Taiwan streetprices, considering most of the stuff is fabricated here in China and Taiwan.

    weird...

    groeten uit Taiwan :)
  • Nataku - Wednesday, June 1, 2011 - link

    I didn't think you could get anything Antec in Taiwan? either that or the store I went to 3 years ago just decided to give me the finger lol

    I'm not sure if this is the reason, but may be tax hasn't been included in the US version?
  • laserwing6 - Wednesday, June 1, 2011 - link

    Well, they make the stuff in China, then send it back to US where they distribute it...not very smart if they ask me...or at least thats what most companies do :P
  • dingetje - Thursday, June 2, 2011 - link

    Right, i guess it doesn't make sense for an american company to do that.

    The weird thing is that if i compare (street)prices between usa and taiwan of almost any hardware brand, the prices are 10 to 15 percent lower in the usa (so even for taiwan based companies).

    I guess it has something to with tax or middle-men or both.
  • radium69 - Tuesday, May 31, 2011 - link

    Scuse me, that should read 700W :)
  • Quizzical - Tuesday, May 31, 2011 - link

    Is this, by any chance, a rebranded Seasonic S12II?
  • Folterknecht - Wednesday, June 1, 2011 - link

    Look at last Page:

    "Pricing ends up being the big selling point here, especially when we consider the original Seasonic version cost $20 more."
  • JasonInofuentes - Tuesday, May 31, 2011 - link

    Glad I picked this up when I thought my PSU had blown. Sad that it turned out to be my mobo. :( Ahh well.
  • SlyNine - Wednesday, June 1, 2011 - link

    So I found this site talking about PSU reviews, Worth a good read and also shows why Anandtech is one of the best PSU reviews out there!, So keep up the good work Anandtech!

    http://www.hardwaresecrets.com/article/Why-99-Perc...

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