Introduction

Enermax is another manufacturer that has been in the market already for quite a few years now. In fact, Enermax was the first company to release major retail products, and they actually introduced the first color painted power supply to the market. Enermax as a company has been at the forefront of introducing new technologies and conforming to the latest ATX specifications. Their tight relations with companies like Intel, AMD, and NVIDIA certainly help in this regard.


Today we have the latest model from Enermax: the Infiniti series in its 650W version. The Infiniti series was introduced about a year ago and we saw early samples in Taipei at that time. We were surprised by the high efficiency of the Infiniti when we first had a chance to look at one, and now we finally can review a shipping retail unit. Enermax has also added another new technology with this PSU called CoolGuard.


The label shows three 12V rails, two with 28A and the third with 30A. The lower voltage rails are similarly rated and don't differ much from previously tested power supplies. With the three 12V rails Enermax has taken a different approach to the limited amperes problem than other manufacturers. We have mentioned this before in reviews of single 12V rail power supplies, where some manufacturers have tried to solve the problem of important 12V rails not delivering enough power in high-end system by having a single high amperage 12V rail. With 28A and 30A Enermax has a better approach, since there are currently no components that wouldn't be satisfied with 336W or 360W. Even better is that Enermax lists the real combined 12V amperage (52A), so while each 12V on its own is capable of delivering a decent amount of power, the total between the three rails is less than their sum. Enermax's OCP is around 32A to 34 amps in most cases, even though they list 28A on the label for two of the rails.

Features, Packaging, and Appearance
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  • Bozo Galora - Tuesday, September 11, 2007 - link

    I am beginning to agree with a poster on another PSU review comment section that your droops near or on the max wattage seem to be more than reported on other PSU review sites, especially 3.3V and 5V.
    It seems to be an ongoing trend in the AT PSU reviews.
    I am waiting to see a PSU review here I can directly compare with another impeccable site with top notch measuring gear.
    Just thinking outloud - heh.
    Reply
  • strikeback03 - Tuesday, September 11, 2007 - link

    We bought 2 of these power supplies from Newegg for new systems at work. In one, the box apparently did get dinged quite hard; the box was dented and the lip at the top on the cable side of the PSU (where you would put screws through into the case if the case has appropriate holes) was bent as well. Also, I would call the fit of the modular cables more than snug, I thought I might break the mounts in the power supply tring to get them to go in. It seems the pins were not very straight in the cables, as once they finally went in once they worked better thereafter. The cables for the Liberty worked much better, unfortunately they are not compatible without trimming.

    Otherwise they are nice units, and the fan is not audible over the noise of the air handling units in the lab even with the case right next to me and the side panel off.
    Reply
  • G20C - Wednesday, September 12, 2007 - link

    Could you please tell me what are the lengths of the 24 pin and 4+4 pin connectors on your Enermax Infinity 720W PSU?
    I have an Antec P182 and I want to buy the Enermax Infinity 720W PSU but I don't know if the 2 cables are long enough.
    Reply
  • Makaveli - Tuesday, September 11, 2007 - link

    I have the 720watt model and its a excellent PSU and well worth the money. I also don't find it loud at all, and my computer is right next to by bed!!

    I also believe the 720watt models fan spins at a higher RPM than the 650Watt model.
    Reply
  • G20C - Wednesday, September 12, 2007 - link

    Could you please tell me what are the lengths of the 24 pin and 4+4 pin connectors on your Enermax Infinity 720W PSU?
    I have an Antec P182 and I want to buy the Enermax Infinity 720W PSU but I don't know if the 2 cables are long enough.
    Reply
  • strikeback03 - Monday, September 17, 2007 - link

    Sorry, we have the 650W models, same as this review. I didn't bother measuring, I would assume it is the same as listed here. Reply
  • strikeback03 - Monday, September 17, 2007 - link

    Oops, replied to the wrong instance of this comment. Should be below. Reply
  • Bjoern77 - Tuesday, September 11, 2007 - link

    Any chance that this one is up for on a soonish review? That would be my fav. against the 650w infiniti.
    Anyway, nice review, and thx for not reviewing the 720w infiniti again, which is probably the most reviewed power supply of all time..
    Reply
  • Christoph Katzer - Tuesday, September 11, 2007 - link

    Will have Seasonic S12II next (sorry for the delay) and Seasonic will surely be happy to send me some more for evaluation. Reply
  • Jodiuh - Tuesday, September 11, 2007 - link

    Don't they make both the Corsair 620 and PC P&C 610? Reply

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