Enermax Infiniti 650W
by Christoph Katzer on September 11, 2007 4:00 AM EST- Posted in
- Cases/Cooling/PSUs
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.
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.
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.
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HaZaRd2K6 - Tuesday, September 11, 2007 - link
I know they make the Corsair 620HX (which I own; great PSU), but I thought PCP&C manufactured their own... Speaking of which, will we be seeing a review of any Corsair PSUs coming up? They're hot sellers at work, and I'd like to see how they stack up stats-wise to some of the others on here so far.n0nsense - Tuesday, September 11, 2007 - link
Good job with this review, guys.But have to disagree with you. 4/8 and 24 pin cables are short. It's enough for most of users, but it will be impossible to use it with Enermax CS-718 (I'm a happy owner of this one) case or any other case where CPU socket is not close to PSU. Strange thing. After all, it's the same company.
What is really missing for comparison, is Corsair HX620. Which i believe is best choice for this class.
As for Infinity, efficient, but noisy.
n0nsense - Tuesday, September 11, 2007 - link
Good job with this review, guys.But have to disagree with you. 4/8 and 24 pin cables are short. It's enough for most of users, but it will be impossible to use it with Enermax CS-718 (I'm a happy owner of this one) case or any other case where CPU socket is not close to PSU. Strange thing. After all, it's the same company.
What is really missing for comparison, is Corsair HX620. Which i believe is best choice for this class.
As for Infinity, efficient, but noisy.
Jodiuh - Tuesday, September 11, 2007 - link
I'm not sure the exact length of the PC P&C 610's 4/8 and 24 pin cables, but it's a real close fit for my Stacker going up from the bottom, behind the mobo tray, back through a hole I cut out, and into the plug. The PC P&C 750 Quad/Xfire reviewed recently has 45CM cables as opposed to the Enermax's 50CM. Still, I think it'd be nice to have some 75CM cables for that extra wiring origami one might need inside a bigger case like the Lian Li 2100's and such.n0nsense - Wednesday, September 12, 2007 - link
It must.http://rusisrael.com/albums/pic/o/00/00/28/2859.jp...">http://rusisrael.com/albums/pic/o/00/00/28/2859.jp...
Look at the picture. cables have to go from the top most to the bottom.
This is my old config which was running with Thermaltake 470 PSU (can't remember the exact model). But when I replaced MoBo with Asus P5N32-E SLI, i found it impossible to connect 4/8 pin cable. It was to short. My preferred PSU (Corsair's HX620) has 19" (~50cm) 4/8pin cable and i needed to do some customization to extent the cables.
n0nsense - Wednesday, September 12, 2007 - link
It must.http://rusisrael.com/albums/pic/o/00/00/28/2859.jp...">http://rusisrael.com/albums/pic/o/00/00/28/2859.jp...
Look at the picture. cables have to go from the top most to the bottom.
This is my old config which was running with Thermaltake 470 PSU (can't remember the exact model). But when I replaced MoBo with Asus P5N32-E SLI, i found it impossible to connect 4/8 pin cable. It was to short. My preferred PSU (Corsair's HX620) has 19" (~50cm) 4/8pin cable and i needed to do some customization to extent the cables.
n0nsense - Wednesday, September 12, 2007 - link
It must.http://rusisrael.com/albums/pic/o/00/00/28/2859.jp...">http://rusisrael.com/albums/pic/o/00/00/28/2859.jp...
Look at the picture. cables have to go from the top most to the bottom.
This is my old config which was running with Thermaltake 470 PSU (can't remember the exact model). But when I replaced MoBo with Asus P5N32-E SLI, i found it impossible to connect 4/8 pin cable. It was to short. My preferred PSU (Corsair's HX620) has 19" (~50cm) 4/8pin cable and i needed to do some customization to extent the cables.
JEDIYoda - Tuesday, September 11, 2007 - link
Nice review!Considering I have thought the Infinity line was NOT that good compared to other brands comperable PSU`s!!
It appears as if Enermax did something right!!
very nice review!!
retrospooty - Tuesday, September 11, 2007 - link
Yup, Enermax has been at or near the top for years. My last 2 PS were Enermax. I just got this very model the Infiniti 650 on Sept. 1st for $163.99 including shipping at ewiz.com. Very nice PS.retrospooty - Tuesday, September 11, 2007 - link
Also... about hte noise. I run a C2D at 4ghz and an 8800GTX overclokced as well all watercooled in Arizona, ambient temps are a warm 82f in my house. No noise at all coming from the PS after hours of load.