LEPA G1600-MA 1600 W Review 11

LEPA G1600-MA 1600 W Review

Packaging, Contents & Exterior »


LEPA G1600-MA Features & Specs
Max. DC Output1600W (1700W Peak)
Efficiency80 PLUS Gold
Operating temperature0°C - 40°C
ProtectionsOver Voltage Protection
Under Voltage Protection
Over Current Protection
Over Power Protection
Over Temperature Protection
Short Circuit Protection
Cooling135 mm Double Ball-Bearing Fan
Dimensions150 mm (W) x 86 mm (H) x 180 mm (D)
Weight2.4 kg
ComplianceATX12V v2.3, EPS 2.92
Warranty5 years
Price at time of review (exc. VAT)$329.99

The unit has the ability to output 1600W continuously at 40°C and 1700W peak for a short period. These are very high power levels which we rarely see in desktop PSUs. Since the G1600-MA takes universal power input it can be certified officially by the 80 PLUS organization, which indeed classified it as a Gold efficiency unit. This is very impressive considering its huge output.
As you can see all available protections all are included, even the rare OTP which is always good to see in a PSU and especially a high capacity one. The big LEPA utilizes a ball bearings fan which promises prolonged lifetime and as indicated in the table above, the unit's dimensions are compact given its capacity. Finally the warranty is long enough and the price looks fair for what the unit offers, on paper at least.

LEPA G1600-MA Power Specs
Max. Power25A25A30A30A30A30A30A30A4A0.5A
Total Max. Power1600W

Such high capacity needs many +12V rails in order to run safely and in this case we have six rails with 30A capacity each. Of course the OCP trigger point is set higher than 30A, to avoid pointless shutdowns when energy hungry VGAs are installed. The minor rails are pretty strong, for a modern PSU, with 140W combined max power and finally the 5VSB rail can deliver up to 4A. This is a welcome upgrade to the weak 5VSB rail of the Platimax 1500W which can output only 3A max.

Cables & Connectors, Power Distribution

Modular Cables
ATX connector (600mm)20+4 pin
4+4 pin EPS12V (650mm)1
4+4 pin EPS12V (600mm)1
4 pin ATX12V (600mm)1
6+2 pin PCIe (500mm) 10
4 pin Molex (450mm+150mm+150mm+150mm) / FDD (+150mm)8 / 2
SATA (450mm+150mm) / 4 pin Molex (+150mm+150mm)2 / 2
SATA (450mm+150mm+150mm+150mm)12

As you can see the G1600-MA comes with a huge amount of cables/connectors. You can hook up to five high-end VGAs and at the same time you have two EPS connectors and one ATX12V at your disposal! Also there are fourteen SATA and ten 4-pin Molex connectors for the peripheral devices.
All cables have sufficient length, except the PCIe ones, which are kind of short. An additional 50-100mm on the main ATX and the second EPS cables would be ideal since most likely this PSU will be installed in a full tower case. Also the 24pin ATX and the PCIe/EPS connectors use thicker 16AWG wires for lower voltage drops at high loads. Unfortunately this has a negative effect on their flexibility so cabling routing tasks are going to be really tough with these cables. The rest of the connectors use the standard 18AWG gauge and all cables feature good quality sleeving.

Since this PSU features multiple +12V rails with a fully modular design, a single power distribution table would be highly confusing. Thankfully LEPA/Enermax provided a scheme of the modular PCB which provides all necessary information about +12V distribution on the modular sockets. With this scheme as guide you can easily find the correct way to install the modular cables, to match to your system requirements.

Power distribution on the modular panel is identical with the Platimax 1500 and is not ideal in my opinion. Normally 12V1 should power at least half of the peripheral/SATA sockets and not only the 24pin ATX connector. Also the first EPS connector is powered from a dedicated virtual rail, 12V2, so it could also feed the rest of the peripheral/SATA sockets. Two rails on only two connectors is an overkill while all other connectors have to share four rails.
Similar to the Platimax 1500 case, if you need to use the second EPS/ATX12V connector you should connect its cable either to the middle top socket or to the top right one, which is feed from 12V4 and 12V6 respectively. These rails provide power to a single 12pin socket (and to the peripheral ones) so you won't mix any PCIe connectors with this EPS, something that could lead to OCP activation in some cases.
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