Enermax Gold: Modu87+ and Pro87+
by Christoph Katzer on January 19, 2010 1:00 PM EST- Posted in
- Cases/Cooling/PSUs
Modu/Pro87+ 500W Voltage Stability and Quality
We tested all of the units we had on hand, but after comparing the results it was clear that similar models with the same wattage perform absolutely the same. We saw differences of only a tenth of a volt, which leads us to the conclusion that we only need to show only chart for each wattage and avoid the redundancy of showing both the Modu87+ and the Pro87+. The results of the Modu87+ and Pro87+ are virtually identical. In fact, Modu87+ performs a little better in our tests, despite the rumors that cable management adds additional resistance to the cables. There is additional resistance, yes, but it's so marginal that one can hardly see a real difference in a test lab. The difference at a user's home wouldn't be at all measureable, and the minor variation we tested between the Modu87+ and the Pro87+ is likely due to small variations between any two PSUs off the same production line.
The voltage regulation for the 12V rail is fantastic. Both lower voltage rails are a little behind but still make a good impression. There is almost no fluctuation in the 12V rail and it provides stable output without breaking a sweat.
Ripple
The 5V rail held stable with ripple of only 14mV, but the 3.3V rail ripple is sky-high - close to the maximum allowable amount according to the ATX specification. 3.3V output isn't critical these days, so we can overlook this "flaw". All three 12V rail are stable at 40mV to 60mV, which is by far the most important result.
20% load
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100% load
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rudolphna - Tuesday, January 19, 2010 - link
Very nice to see a new PSU review on anandtech, I was worried you guys had forgotten what made you popular- reviews of real products not just blog after blog. I have a suggestion, if I may. The Antec Neo Eco 400W power supply. I actually just bought one, it seems like a good deal. It has a 30 amp 12V rail (360W) a 120mm fan, and is 80plus certified. Not sure who the OEM for it is, I'm thinking Seasonic. But you guys should check it out. Great review by the way.papapapapapapapababy - Tuesday, January 19, 2010 - link
good luck finding a replacement for that gold monstrosity. so that make this crap a n buy for me. You see, i like to change the fans on my psu ( better fans) in order to control them myself.strikeback03 - Wednesday, January 20, 2010 - link
Might still use 140mm mounting holes, and just be a 139mm fan to avoid a stupid patent.Calin - Wednesday, January 20, 2010 - link
Hard to think you'll need a fan better than that - 50 Celsius for the vented air and almost totally silent even at maximum load?I have an old Seasonic 350W (12 cm fan) which I felt was totally silent in typical operation (closed case, computer under desk), and after about four years it still is totally silent.
papapapapapapapababy - Wednesday, January 20, 2010 - link
is not hard to think _ for me_ the big fan dsnt follow a standard, it has no other use for me, if a buy 4 120 fans i could give the multiple uses/ ( psu replacement fan, case fan, cpu fan, low speed fan, high speed fan, etc, - btw cases with big fans are terrible) one huge big ass fan? no other user ¡ difficult to find = no thanks.papapapapapapapababy - Wednesday, January 20, 2010 - link
is not hard to think _ for me_ the big fan dsnt follow a standard, it has no other use for me, if a buy 4 120 fans i could give the multiple uses/ ( psu replacement fan, case fan, cpu fan, low speed fan, high speed fan, etc, - btw cases with big fans are terrible) one huge big ass fan? no other user ¡ difficult to find = no thanks.Voldenuit - Tuesday, January 19, 2010 - link
Why use such a cumbersome term as Cable Management (which refers primarily to the neatness of cable routing) when 'Modular' is much more apt (and specifically referred to in the product name)?Nobody makes 'cable management' PSUs, but quite a few companies make 'modular PSUs'.
Mumrik - Tuesday, January 19, 2010 - link
More comparisons (especially in the benchmarking) to competing products (rather than just the other two in the series) would really be nice. I actually have come to expect it at Anandtech.To me, this came off as a bit more of a fluff piece. Not a disguised commercial but more like something I'd find at most other hardware sites.
ap90033 - Friday, January 22, 2010 - link
I thought this was a good article on specific hardware. But then again I am not the uber geek with no life like some seem to be around here....RaistlinZ - Tuesday, January 19, 2010 - link
Geez, and I thought the X-Series was overpriced. Sure, these Enermax PSU's are efficient, but certainly not $50.00 more efficient than say, an Corsair 750HX. If they come with a $30.00 MIR then they might be worth the money, but otherwise I'll pass.