Enermax Infiniti 650W
by Christoph Katzer on September 11, 2007 4:00 AM EST- Posted in
- Cases/Cooling/PSUs
Standby Efficiency
![Standby Efficiency - 115VAC](https://images.anandtech.com/graphs/enermaxinfiniti_08290750815/15446.png)
![Standby Efficiency - 230VAC](https://images.anandtech.com/graphs/enermaxinfiniti_08290750815/15447.png)
The standby efficiency looks very good and even with 230VAC we see a decent result. Enermax seems to have a very good topology here since we have better standby efficiency than the previously tested Zippy Serene.
Efficiency
![](https://images.anandtech.com/reviews/psu/2007/enermax-infiniti-650/eff.png)
We are surprised (and pleased) to see that the efficiency is equal to what we first saw with the first pre-production sample a year ago. We are reaching 86% efficiency under best conditions and even in our stress scenario at 50°C we still measure efficiency results of more than 80%. For loads of between 175~550W, the efficiency will be above 80% regardless of input voltage.
PFC
![](https://images.anandtech.com/reviews/psu/2007/enermax-infiniti-650/pfc.png)
Unfortunately the PFC again doesn't perform that well, particularly with higher input voltage such as 230VAC. Buyers in the US can be happy about a very good correction factor but the guys in Europe will have to live with slightly lower rates of up to 0.985.
![Standby Efficiency - 115VAC](https://images.anandtech.com/graphs/enermaxinfiniti_08290750815/15446.png)
![Standby Efficiency - 230VAC](https://images.anandtech.com/graphs/enermaxinfiniti_08290750815/15447.png)
The standby efficiency looks very good and even with 230VAC we see a decent result. Enermax seems to have a very good topology here since we have better standby efficiency than the previously tested Zippy Serene.
Efficiency
![](https://images.anandtech.com/reviews/psu/2007/enermax-infiniti-650/eff.png)
We are surprised (and pleased) to see that the efficiency is equal to what we first saw with the first pre-production sample a year ago. We are reaching 86% efficiency under best conditions and even in our stress scenario at 50°C we still measure efficiency results of more than 80%. For loads of between 175~550W, the efficiency will be above 80% regardless of input voltage.
PFC
![](https://images.anandtech.com/reviews/psu/2007/enermax-infiniti-650/pfc.png)
Unfortunately the PFC again doesn't perform that well, particularly with higher input voltage such as 230VAC. Buyers in the US can be happy about a very good correction factor but the guys in Europe will have to live with slightly lower rates of up to 0.985.
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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.