Enermax MODU87+ 700w PSU Review

Introduction & Specs

At the beginning of 2008 power supply efficiency organisation 80PLUS revised their certification program to include three new standards on top of the original 80PLUS (80%+) certification. The Gold, Silver and Bronze levels introduced new efficiency targets for manufacturers to meet in an effort to reduce global energy consumption in PC's and other devices. While none of these new certifications were by any means mandatory, the PSU market is immensely competitive, and having a power supply certified to one of these new standards would be a sure-fire way to attract the energy conscious consumer.

To date, only a handful of manufacturers have actually managed to achieve 'Gold' status with many of the units just meeting the efficiency requirements by less than 0.5%. Furthermore, some manufacturers have even gone so far as to cut out certain safety features and compromise voltage stability just to be one of the first to hang with the gold medallists. Enermax on the other hand have resisted the temptation to go into the gold scene full steam ahead, and instead have spent their time researching alternative PSU designs that can increase efficiency without sacrificing performance or features - or so we've been told!

Today we're going to be finding out for certain as their very first gold certified PSU goes under the OC3D microscope. Will it maintain the standard we've become accustomed to from previous models such as the Revolution85+? Let's start by checking out the specifications to get a feel for what's in store:

87 to 93 percent efficiency @ 230V and 20 to 100 percent load. 80PLUS® Gold certified

Dynamic Hybrid Transformer Topology

Technological breakthrough topology using a staged dynamic transformer array for extremely high efficiency with the most durable and stable output at any load

Intel ATX12V v2.3
Compliant with latest desktop power supply design guide. Full support of most current CPU: Intel® Core 2 Duo™ / Quad™ / Extreme™ / i7™ / i5™ / i3™ and AMD® Athlon™ 64X2/X4 or Phenom™ X3/X4

Stable and reliable power

Three high-performance and massive 12V rails. Extremely low ripple noise

Future ready and flexible
All-round modular cable management. 10/12P sockets for possible connector changes of upcoming high-performance CPU and graphics card generations

DXXI ready!

Full support of most current DX11 graphics cards due to minimum two 6+2P (8P) PCI-E connectors

Full graphics power

Supports SLI™ systems (Modu87+ 700W/800W) and CrossFireX™ systems

C6 & Hybrid Support

Supports energy saving modes of current and future CPU & GPU generations (C6 & Hybrid Mode) due to ZERO LOAD Design (no minimum load)

Air Cooling by Enermax

Integrated 13.9cm fan with patented Twister Bearing Technology ensures efficient and ultra silent cooling and long lifetime (100,000 hours MTBF)


Unmatched 330RPM at low loads. Path breaking and leading patented fan control for optimal cooling and minimum noise (Modu87+ 800W: 700-1.800RPM)

  • HeatGuard
Keeping PSU fan running for 30-60 seconds after shut down to dissipate the remaining system heat and prolonging system lifetime

Hybrid Capacitor Array

High-performance capacitor array of heavy-duty solid state capacitors and Japanese electrolytic capacitors to ensure tightest DC stability and regulation


Industry-leading octuple protection circuitry of OCP, OVP, AC UVP, DC UVP, OPP, OTP, SCP & SIP


Fixing the AC cord tightly to avoid accidental shutdowns of your PC

Non-stop @ 50°C

Non-Stop industrial class performance at 50°C ambient

Worldwide Compatibility

100-240V AC input with automatic adjustment and up to 99% active Power Factor Correction (PFC) for global usage

Dimensions (W x H x D)

150mm x 86mm x 160mm / 150mm x 86mm x 175mm (Modu87+ 800W)


5 years vendor warranty

Sifting through all the various marketing buzzwords and guff we can see that the MODU87+ has a very strong set of safety features that include Over Current Protection, Over/UNDER Voltage Protection, Over Power Protection, Over Temperature Protection, Short Circuit Protection and SIP (whatever that is??).  The unit is also capable of delivering its full 700w output at an ambient temperature of 50°C, which is a good thing as that's what we're going to be testing it at today.

Still on the subject of heat, Enermax have also configured the MODU87+ to continue running its fan for up to a minute after the PC has been switched off to help dissipate any remaining heat and potentially increase the PSU's life. However, should your unit suffer a premature death, a generous 5yr warranty is included.

Enermax MODU87+ 700w Rail Layout
DC Output +3.3V +5V +12V1 +12V2 +12V3 +12V4 +12V5 +12V6 -12V +5VSB
24A 24A 25A 25A 25A - - - 0.5A 3A
Max Power 120W 696W 6W 15W

The +12v rail is split three ways with a total power output of 696W (58A) and a maximum draw of 25A set using OCP on each rail. Providing that Enermax has assigned at least one of the rails entirely to the PCI-E connectors, this should ensure that the MODU87+ 700w is capable of powering the latest high-end GPU's.

Over on the +3.3v and +5v side the max combined output is a fairly average 120w with each rail being limited to 24A. Although the output of these rails isn't quite as important as it once was, most manufacturers still provide anything from 150w to 170w output here.

With the basics out of the way let's take a proper look at the unit over on the next page....

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Most Recent Comments

25-03-2010, 21:12:09

Just been doing my weekly catch up of reviews and figured I'd give this a little read.

Top quality review as always Jimbo.

I never had any issue with the data in its table form myself, but for those that do, the graphs are layed out very well and extremely clear so you've hit the nail on the head there too.

As for the PSU... Hmm. Yeah it looks ummm odd shall we say but the efficiency is top notch.

Still don't think I'll be swapping out my HX750 anytime soon.

Oh yeah, and I'm not quite sure why this hasn't had any replies either :S.Quote

26-03-2010, 03:15:01

Cheers for breaking the ice fella Quote

26-03-2010, 10:18:51

I kept quiet cos that fan looks like it belongs in a Las Vegas hookers handbag! Results were very good though.

I dont think Ive ever seen an enermax that didnt have some kind of quirk in the styling though, the revolution for instance was ruined by the dodgy braiding.Quote

03-01-2011, 20:29:00

Originally Posted by tinytomlogan View Post

I kept quiet cos that fan looks like it belongs in a Las Vegas hookers handbag! Results were very good though.

I dont think Ive ever seen an enermax that didnt have some kind of quirk in the styling though, the revolution for instance was ruined by the dodgy braiding.
Funny since they do a vegas range of fans http://www.enermax.co.uk/apollishvegas.html?L=2Quote

03-01-2011, 22:46:05

nice review dude, ive never actually paid much attention to enermax, this gives me a bit of insight and will likely notice them in the streets when im out...Quote

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