Enermax Eco80+ 500W PSU

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Enermax Eco80+ 500W (EES500AWT-00) computer power supply
Market Price

In Enermax' seven (!) lines of power supplies, the Eco80+ is one of two tagged as "eco". The "Love our Earth" tagline on the packaging attests that "eco" stands for ecology, but its position at the low-end of Enermax' lineup suggests that "economy" might also be a relevant tag. Certainly, there is little to suggest the Eco80+ is more environmentally friendly than any other power supply. Its most likely selling point — efficiency — is overshadowed by the fact that nearly every other model Enermax produces matches or exceeds the efficiency of the Eco80+ (as certified by 80 Plus). The best that can be said is that ecology and economy are often tied: Buying a cheaper product sometimes means less packaging and less energy expended to create it.

Putting aside the green marketing for now, Enermax is a respected brand, and a "basic" 500W model appeals well to our sense of simplicity. It also has an unusual fan — always a point of interest to us. Enermax has dressed it up in fancy marketing terms, but it appears to be a descendant of Enermax' Enlobal bearing Marathon fan. Jonny Guru spent an entire review mocking the "Magma" fan, its "Twister" bearing, and its "Batwing" blades, but the technology piqued our interest before, and we are happy to take another look at it.


Technically, yes, the is a green box ... but only if you're talking in terms of the color of the light it reflects. Enermax' "green" marketing hasn't convinced me this is good for the environment.

Nonessential accessories are limited to a pair of cable ties.

Enermax Eco80+ FEATURE HIGHLIGHTS (from the web product page)
FEATURE & BRIEF Our comment
80PLUS ready!
80-86% efficiency @ 20-100% load. Compliant with 80 PLUS® efficiency requirements.
Not sure what being "ready" for 80 Plus means, but its certified at a basic level. Not all that uncommon these days.
MAGMA Fan inside!
BATWING TWISTER Bearing fan with low noise and long lifetime (100,000 hours MTBF, Patented).
Inside sources tell me this power supply will be featured as a villain in the next Batman movie.
Advanced fuzzy logic 12cm fan speed control for optimal cooling and minimum noise (Patented).
I thought the term "fuzzy logic" went out of style in the early '90s. Somehow, I doubt the fan controller is coded in multi-state logic...
Industry-leading octuple protection circuitry of OCP, OVP, AC UVP, DC UVP, OPP, OTP, SCP & SIP.
Mmm ... alphabet soup. I can guess most of these acronyms, but I'm stumped on SIP. Most of the others are standard.
Patented air-inlet with optimal aero-dynamical design reducing noisy air turbulences.
Great, they patented a fan intake. DIY modders, look out — if you improve air flow, Enermax is coming after you. In all seriousness, we applaud research into reducing air noise ...
24/7 @ 40°C ready!
Non-Stop industrial class performance at 40°C/104°F ambient.
This seems reasonable. Most computers are around this temperature internally.
GAMING ready!
Support for latest Intel® Core™ 2 Duo /Quad /Extreme /i7, and AMD® Athlon™ 64X2 & Phenom™ X3 / X4 CPU.
It's a power supply. The only way it can fail to be compatible with a CPU is if it doesn't provide enough juice ... and at 500W, that's unlikely.
EMC ready!
Full-scale electromagnetic filtering protects your system against radiation interferences. (CE EMC EN61204 compliance)
Again, strange use of the word "ready" ... and do most computer users know what EMC stands for? Maybe if they wear tin foil hats...

AC Input
100-240 VAC, 50-60 Hz, 7.5-3.5 A, Fuse: F10A / 250V
DC Output
456W (38A)

A 500W power supply is plenty; none of the lines are likely to come anywhere near their rated maximum during ordinary use. You'd need at least a pair of top end graphics cards to push the power load anywhere close to maximum. Ordinary computer users can easily get by with half as much capacity, but 500W is still considered a "small" power supply these days...

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