Test Setup

As usual we are testing with our Chroma programmable loads to fully load each rail to a specific amount. This is important to get truly accurate results and not merely approximate values. The tests are conducted in two different temperature environments. One is a normal room temperature of 25-26°C, while the second environment goes from room temperature and increases steadily up to 50°C. Especially during the higher temperatures we will see how good the power supplies are and what they're really made of. Components inside will perform much worse at higher temperatures, but we expect any good quality PSU to deal with such test conditions without failing.

Note: If you would like to know more about our testing methodology, equipment, and environment, please read our PSU Testing Overview.

PSU Rail Loading
PSU Load 3.3V 5V 12V1 12V2 12V3 Wattage
All Rails
10% 1.40A 1.68A 1.38A 1.38A 1.48A 67W
30% 4.20A 5.04A 4.13A 4.13A 4.43A 200W
50% 7.00A 8.40A 6.89A 6.89A 7.38A 331W
80% 11.20A 13.44A 11.02A 11.02A 11.81A 525W
100% 14.00A 16.80A 13.77A 13.77A 14.76A 651W




The lower voltage rails remain very nicely inside specs. The standby rail starts a little on the high side with about 5.17V, but that's no problem at all. No rail even came close to the lower limits.




Simply stated, Enermax has very high voltages on the 12V rails. As can be seen, the test starts at around 12.39V which is quite high (though technically within specs). Since the output starts so high, the drop as load increases doesn't even bring the voltage under 12.00V and only in the case of the 12V3 rail did we actually see the voltage dropping close that amount. One year ago we tested a first sample of an Infiniti 720W version on a Chroma 8000. A report can be downloaded here for comparison. At that time we were already recording similarly high voltages on the 12V rails, and this obviously continued into mass production.

Internals Efficiency and PFC
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  • n0nsense - Wednesday, September 12, 2007 - link

    lol.
    82F =~27C
    I have 29-32 (night/day), 75% humidity for ~8 month.
    C2D running @ 3.06GHz instead of 1.86, 8800GTS 640MB, 5 HDs on 680i chipset (which is hot). ALL this Air cooled.
    almost silent.
    the only thing i hear is HDs (specially 15000rpm SCSI head moving).
  • n0nsense - Wednesday, September 12, 2007 - link

    lol.
    82F =~27C
    I have 29-32 (night/day), 75% humidity for ~8 month.
    C2D running @ 3.06GHz instead of 1.86, 8800GTS 640MB, 5 HDs on 680i chipset (which is hot). ALL this Air cooled.
    almost silent.
    the only thing i hear is HDs (specially 15000rpm SCSI head moving).
  • Jodiuh - Tuesday, September 11, 2007 - link

    Haha, doesn't the heat suck in the summer? I'm @ 26-28C depending on TOD and running a lower clocked air cooled C2D w/ an 88GTX, but w/ the PC P&C 610. It def never gets loud, but doesn't have the cool anodized finish either. :D Bring on the winter and it's 22-24C temps!
  • Christoph Katzer - Tuesday, September 11, 2007 - link

    Thanks, and before somebody is asking. I do ripple/noise tests but the Infiniti was tested already some time ago. I will add the results asap after I got feedback from the review with actual results (Antec Earthwatts) this month. Hmmmkay?
  • datamogul - Wednesday, July 1, 2020 - link

    For psu nostalgics :) Bought this psu unused in ebay and swapped out my evga g3 to use it with a x370 board equippedwith a 1700x and an rx580. The infiniti 650 has been running without problems for over a week. When switching off, the fan briefly but loudly turns up.

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