Voltage Regulation

+3.3V Regulation
Load Voltage
10% +1.58%
20% +1.21%
50% +0.15%
80% -1.06%
100% -1.61%
110% -2.27%

 

+5V Regulation
Load Voltage
10% +0.74%
20% +0.46%
50% -0.30%
80% -1.10%
100% -1.70%
110% -2.04%

 

+12V Regulation (Worst Rail)
Load Voltage
10% +1.01%
20% +0.81%
50% +0.19%
80% -0.35%
100% -0.77%
110% -0.96%

First we take a look at the voltage regulation. All rails start relatively close to their optimal values. +3.3V and +5V reached about -2% during overload which is decent. The four +12V rails show even better results. Even the worst rail stays over -1% at highest load. FSP has btw. no problems with dynamic loads. We saw some tests from 50Hz to 10KHz where the load current decreased after a small duration with satisfying voltage results.

Ripple and Noise

+3.3V Ripple Quality
Load Ripple and Noise
10% 26mV
20% 23mV
50% 31mV
80% 38mV
100% 42mV
110% 44mV

 

+5V Ripple Quality
Load Ripple and Noise
10% 18mV
20% 18mV
50% 21mV
80% 30mV
100% 40mV
110% 46mV

 

+12V Ripple Quality (Worst Rail)
Load Ripple and Noise
10% 30mV
20% 32mV
50% 45mV
80% 72mV
100% 97mV
110% 116mV

These ripple & noise measurements tell us that this Gold series was planed as an affordable offer while most other 80Plus Gold PSUs show better results -- for much higher prices. +5V and +12V are very close to 1% ripple & noise. However all rails are within ATX specification and most PC systems shouldn't reach 100% load or more. Those results from the +3.3V rail with 26mV at low load and 23mV at a higher load are very unusual.

FSP HQ Aurum CM 750W Test Report 2
POST A COMMENT

14 Comments

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  • kenyee - Thursday, July 21, 2011 - link

    No price for the Aurum?
    And where can you get it?
    Reply
  • the-bink - Thursday, July 21, 2011 - link

    In Holland I payed 90 euro incl. shipping, for the 700 watt version without the modular cables (FSP Aurum 700). I have been very happy with mine (Computer: 5850*2, 10HD's, Q9550@3.6GHz, etc., etc.).

    Also see the review at:
    http://www.hardwaresecrets.com/article/FSP-Aurum-C...
    Reply
  • bigboxes - Thursday, July 21, 2011 - link

    1. Ugly
    2. Fool me once...
    Reply
  • mino - Monday, July 25, 2011 - link

    UMM???

    FSP's products are almost allways in the "You-get-what-you-pay-for" class. This goes for the high-end as well as low end parts.

    Please consider that FSP has a huge range and DOES produce low-end (even if not "trash"-end) parts.

    To my experience, most of the time, they are either cheapest or on par with competition at a given price point. Though nobody does miracles for peanuts in the PSU business ...
    Reply
  • grandleaf - Thursday, July 21, 2011 - link

    $155 is too expensive.
    I picked a Seasonic X-760 at Microcenter one months ago for $149.
    Reply
  • Crazymech - Thursday, July 21, 2011 - link

    It's nitpicking, but I'm disliking the use of the by the way abbrevation.

    Is a full review upcomming? I'm having a bit hard time getting any solid information except for the numbers from this 'rushed' article.

    But on the other hand, I never say no to more content from Anandtech, it was worth the time reading it :).
    Reply
  • iamkyle - Thursday, July 21, 2011 - link

    Can we finally compile all these PSU reviews into say the "Anandtech PSU Charts" so we can really compare the ones you review? Reply
  • etamin - Thursday, July 21, 2011 - link

    You can get a seasonic x750 gold on newegg right now for 166 shipped. It's a shame there are so few 100% modular psus with quality performance and conservative designs. Reply
  • ratbuddy - Saturday, July 23, 2011 - link

    What use would a 100% modular PSU be? Everyone's going to use at least the 24 pin and CPU connectors, no reason to add cost making those detachable. Reply
  • dhiiir - Friday, July 22, 2011 - link

    Fast economic development, science and technology quickly.Is a full review upcomming? I'm having a bit hard time getting any solid information except for the numbers from this 'rushed' article.The store's products, the quality is really good. Cheap, authentic. There are genuine brand-name shoes and clothes. Now share it with everyone.-.www.upsfashion.com- I believe you will like it. Reply

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