Reviews - Lepa G1600-MA 1600W
Sample Provided by: Lepa (By OklahomaWolf on Tue, Apr-17-2012)

Page 1 - First Look

Good day to you, peoples of the Internet. As you can see by the above picture, today I'm looking at a monster. But not just any monster, it's one with a heart of gold. Yes, today I'm looking at not only the largest 80 Plus Gold certified power supply I've ever tested, but it's the largest one I've ever tested in general.

Seriously, the box alone is so big I'm surprised it doesn't have its own zip code. If you look down by the 80 Plus Gold logo, you can just barely make out a small farm. What do they grow there, you ask? Why, it's a bumper crop of awesomeness, it is.

Peak power of 1700W, eh? Not so sure I'd put such a logo on this unit, really. I mean, think about it... the two largest units on the market in North America are this puppy and the Ultra 1600W. That other one requires a 20A line cord and a 20A household circuit to get to that power level. Now, this one is Gold rated, so maybe it'll come in below the needs of a 15A circuit, but I'm betting 1700W is going to be really pushing it. I'll have to pay attention during load testing to the measured current draw. We'll see if you can get 1700W out of a normal outlet or not.

Turning the box around, we find ourselves deluged with marketing. Let me see if I can get through some of this:

Product Features

  • Powerful 1600W fully rated output, peak power up to 1700W
    -Let's see if this bad boy can stay within the requirements of a 15A household circuit before we decide that 1700W is something we should go for. Remember, 15 amperes at 115 volts is 1725 watts. I'm going to be looking closely to see if the 1600W power level exceeds that 15A of current draw.
  • Surpassing 80 Plus Gold level (G1600-MA is 80 Plus Gold certified)
    -We'll let my trusty Rek power meter be the judge of that.
  • Full modular Cabling Design makes system upgrade and replacement easy
    -It does, but what on Earth would you be "up" grading to? Lepa's upcoming 10kW unit? No, you do not upgrade at this power level... you downgrade or sidegrade.
  • High Density PCB Design makes G1600 only 18cm in depth, providing more space to dissipate the heat inside the chassis
    -I can't wait to see if this thing can actually do 1600 watts in that space, given how large my last 1500W unit was.
  • 135mm ball bearing fan with thermal programmed speed controller delivers silent, cool operation
    -Not that I'll ever know... at this power level, every fan in the room is going to be working hard.
  • Honeycomb-shaped ventilation design increases airflow and keeps power supply cool
    -It's also a great way to start a bee farm in your very own computer. Or not.
  • Solid State Capacitors and 105°C Japanese Grade A Capacitors provide great reliability
    -Ah, yes... grade A. So these will taste better than those awful grade B capacitors, then?
  • DC-to-DC Converter Design ensures system stability
    -Uh, DC to DC ensures nothing. The design still has to be a good one to ensure stability, and I've seen a few DC to DC units that sucked for that. Load testing will tell the tale.
  • Full Bridge and Zero Voltage Switch (ZVS) topologies provide superior performance and reliability
    -Translation: uses LLC resonant topology.
  • Dual Sided PCB design synergizes PCB layout
    -Translation: uses both sides of the circuit board. This is a necessity at this power level, and has as much to do with synergy as it has to do with getting all the pieces to fit inside a housing smaller than the national debt.
  • Six powerful +12V rails with high maximum loads offer great compatibility with heavy-duty graphics cards
    -Good. I really don't want a single 12V rail at this power level. With current levels approaching 130 amperes, you don't want short circuits at all. Partial or otherwise. What happens if overpower protection fails to catch it in time? On a unit like this, if it had no overcurrent and only general overpower protection, your household breaker would trip before the protection circuit would. Or maybe it wouldn't, and you'd get a chance to try on one of those fancy hats the firemen bring to your place.  
  • Ability to run up to 4-way GPU (SLI / CrossFire) and Dual CPUs together without difficulty
    -I should hope so.
  • Compliance with EU ErP Lot 6 standards (lower than 1W power consumption at standby mode)
    -As long as your mainboard is also compliant.
  • Over Power, Over Voltage, Under Voltage, Over Current, Over Temperature, Short-circuit protection provide great safety to your system
  • ATX12V version 2.3 and EPS12V version 2.92 compliant

Now, in addition to all the marketing, there is a load table present for both this and the European version of this power supply. Noted in this table is a range of 115V-240V AC. Supposedly, this is the range at which we can expect full power. I don't know... 115V may be a little low for a 15A circuit. We'll have to see.

Aha... looks like the power supply is in the second drawer, right next to the socks and the underwear. Honestly, I would have packaged this unit in two levels. Cabling and accessories on the bottom, power supply on top. As is, the box is rather large in two dimensions and yet relatively flat.

Besides, how can you call this power supply a top drawer unit if it doesn't literally come out of a top drawer?

The contents of the box: power supply, line cord, mountain of modular cables, user guide, some screws, and two little information sheets.

Here are those info sheets now. One tells you which connectors go to what 12V rail, the other warns you that this is not a toy. Rather, it is a power supply capable of extremely high current draw, and you should not use it with anything other than the cord it came with. It also warns you against using an extension cord at these power levels. For good reason, I might add. You don't want to be sucking 15 amperes or more of current through an extension cord made of lamp wire and good intentions, do you?

And here's the user guide with some precautions, installation instructions, and troubleshooting tips.

Here, we finally get our first good look at the G1600. I have to admit, this is a little bit of a small package to get 1600 watts out of, Gold or not. I hope it's up to the job.

Another angle for you.

One side of the power supply...

And the other side of the power supply. I do like this rugged gray finish, even if the color scheme doesn't quite do it for me.

Apel. That's Lepa backwards. Just thought you ought to know. That there AC receptacle is for a C19 power cord. It has to be... you don't want to pull major wattage through the usual C13 jobbie.

Here's the modular connector panel, and there are a lot of them, aren't there?

A look at the fan grille for you.

And a look at the other side that's not a fan grille for you.

Wow... 1596 watts available on the 12V rails alone. 133A. Folks, while I do have the ability to load test up to about 137A or so, I'm not going to do that. Why not? It's quite simple... from past experience, I have learned that my load testers do not like to be run wide open at all times. They tend to pop MOSFETs at the worst times possible when I do, and it's usually more than one that dies. I don't have a limitless supply of replacements, so I'll be stopping somewhat shy of their limits on this one.

But not too shy. Hush, hush, eye to eye. 130A should be enough to see what this baby can do.


+3.3V +5V +12V1 +12V2 +12V3 +12V4 +12V5 +12V6 -12V +5VSB
25A 25A 20A 20A 30A 30A 30A 30A 0.5A 4A
Max Power
@ 40°C
140W 1596W 6W 20W

Before we get to the real fun stuff, here's a look at the cabling. Now, being a real monster, some cables do have to be shared with others. The ATX cable is joined to one of the EPS12V cables. They share the two largest connectors on the modular connector panel.

The PCI-E cables are also shared. Each cable is split about 150mm from the end into two 6+2 pin PCI-E cables. All five of them. Five. That's ten... TEN PCI-E cables. Enough to run five video cards. FIVE. I'm having lunch at one today. ONE.

But wait, there's more. Also shared is a modular cable that has both an EPS12V connector and a four pin ATX12V connector. Yes, folks, this thing comes with three CPU connectors, and you can use them all if you need to.

Type of connector: Lepa G1600-MA
Modular Cables
ATX connector (590mm)* 24 pin 12V1
8 pin EPS12V connector (650mm)* 1 12V2
5.25" Drive (450mm+150mm+150mm+150mm) 8 12V4/
3.5' Drive (+150mm) 2
SATA (450mm+150mm+150mm+150mm) 14
5.25" Drive (+150mm+150mm) 2
8 pin EPS12V connector (600mm)* 1 12V3/
4 pin ATX12V connector (600mm)* 1
6+2 pin PCIe (500mm) 10 (5 dual)
Unit Dimensions (L x W x H)
180mm x 150mm x 86mm

*shared cable


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