Enermax Eco80+ 500W PSU

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These recordings were made as 24-bit / 88 kHz WAV files with a high resolution, lab quality, digital recording system inside SPCR's own anechoic chamber (11 dBA ambient), then converted to LAME 128kbps encoded MP3s. We've listened long and hard to ensure there is no audible degradation from the original WAV files to these MP3s. They represent a quick snapshot of what we heard during the review.

These recordings are intended to give you an idea of how the product sounds in actual use — one meter is a reasonable typical distance between a computer or computer component and your ear. The recording contains stretches of ambient noise that you can use to judge the relative loudness of the subject. Be aware that very quiet subjects may not be audible — if we couldn't hear it from one meter, chances are we couldn't record it either!

Each recording starts with 6~10 seconds of room ambient, followed by 10 seconds of the product's noise. For the most realistic results, set the volume so that the starting ambient level is just barely audible, then don't change the volume setting again while comparing all the sound files.

Sound Recordings of PSU Comparatives in the Anechoic Chamber


While bleeding edge power supplies are pushing 90% efficiency (and $200), it's good to see that the lower end of the market is thriving as well. The Eco80+ is Enermax' economy line, but it's still a very worthy power supply. Sure, it's not really tops in any particular category, but it still exceeds the requirements of most systems out there. Unless your workstation needs (and I mean really needs) multiple blazing graphics cards, the difference between an Eco80+ and a Seasonic X-650 is mostly bragging rights.

It's wonderful to discover that even this lowly power supply has a noise profile that matches the best. Bad as they are, Enermax' overwrought marketing buzzwords can be forgiven because the Magma fan — with its Batwing blades and its Twister bearings — really is quiet. Exceptionally so. We really need to get hold of some individual fan samples, because this power supply is worth it just for the fan.

And what of the middling efficiency and cooling performance? It's good enough, and, especially if you go for the cheaper 400W version (the 350W doesn't seem to be carried anywhere), it's much better value than the high end competition.

Enermax Eco80+ 500W Balance Sheet

* Magma fan
* Silent in typical use
* 80 Plus certification
* Rate capacity suits real system needs
* "Bundled" cable sets

* Thermal design
* Marketing buzzwords
* Misleading "Eco" branding

Much thanks to Enermax for this review sample.

The Enermax Eco80+ 500W is Recommended by SPCR

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SPCR Articles of Related Interest:
Power Supply Fundamentals
Recommended Power Supplies
SPCR PSU Test Rig V.4
Seasonic X-650: Seasonic Hits Gold
Seasonic M12D-850W
Enermax Modu82+ 625W
Antec CP-850: Unique PSU with Top Performance

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