The Enermax Infiniti provided impressive results in both the 50% and 100% load testing with a maximum fluctuation of 0.13v being exhibited on the +12v rails. Both the +3.3v rail and +5.0v rail proved to be extremely sturdy too - never dipping below their rated outputs.
Efficiency was fairly average for this type of power supply, managing almost 82% efficiency at a 646w load. As you may have seen in the Infiniti's specifications, the unit is 80+ certified
. This essentially means that in any given situation, the Infiniti will be able to manage at least 80% efficiency, hopefully provide you with savings on your energy bill and helping the environment in the process.Temperature Testing
In our continuing efforts to make power supply reviews more thorough, rather than simply checking voltage stability, Overclock3D will now be recording the temerature of each PSU as it undergoes testing. Temperature recordings will be taken from the PSU's outer casing at 0%, 50% and 100% load levels in an attempt to gauge how much heat is likely to radiate into the end-users case, and how effective the cooling methods are.
With an ambient temperature of 20°c
, we can see from above that even at 0% load the internal 135mm fan does a good job of keeping things cool and actually drops the PSU temperature to 2°c below room temperature. The same is true for the 100% load test (taken after 1hr), with the casing temperature being recorded at 35°c (15°C above ambient).
It is certainly safe to say that users of the Infiniti PSU will see very little 'heat dump' into their cases and may even see a reduction in case temperatures when switching from a less efficient power supply.Noise Testing
Possibly the hardest part of any PSU review is summarising the level of noise given out by the unit. The threshold for what is considered 'noisy' varies from person to person and therefore what I may consider a quiet unit, another person may consider extremely loud. A common way to resolve this issue is to use a dBA meter to measure the units noise level, however this doesn't take into account the pitch (type) of noise emitted and whether it is likely to irritate end users.
For this reason OC3D records all power supplies at idle and load in wav format for you to make your own informed decisions. All recordings are taken at 30cm away from the PSU and outside of a PC case. You will need to remember that noise levels will be reduced by varying amounts once the PSU has been installed inside your PC enclosure.
0% Load Recording - Download
50% Load Recording - Download
100% Load Recording - Download