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Cougar GX G1050 1050W PSU

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Global Win GAT-001 Case Review ....................

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Chieftec Winner Series: WX-01BD Case Review ..........

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Socket-A Cooler Roundup 

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Cougar GX 1050W PSU Review

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Introduction

Cougar is a company based in Germany and part of the HEC/Compucase group. While still relatively unknown outside Europe, they have developed a reputation for quality in their local markets. Recently they sent us their GX1050 PSU. This is the top model in their GX range and provides over a kilowatt of sustained power for highly demanding systems. Unlike the Antec HCG900 we just reviewed, the GX1050 is a Gold rather than Bronze design and this is reflected in the 93% efficiency claim. Priced lower than similar offerings from Antec and Corsair and higher than no-name brands like "Best Value" (we've heard a lot of horror stories concerning these cheap brands) it then comes down to a question of quality. We put the unit through some rigorous testing.

 

PSU Specifications

  • MAXIMUM EFFICIENCY
    Up to 93% of efficiency, compliant with 80-PLUS® GOLD efficiency requirement .
  • RST (RAPID SWITCH TECHNOLOGY) POWER
    COUAGR® GX provide highest efficiency performance with Rapid Switch Technology.
  • DC-DC TECHNOLOGY
    DC-DC technology provides highest efficiency, most stable performance, and perfect regulation (Regulation <3%).
  • CLC FILTER DESIGN
    CLC filter design efficiently suppress Ripple/Noise ‹1%
  • COMPATIBLE WITH LATEST PC-TECHNOLOGY
    Supports the newest specifications of ATX12V. Created for usage with current and next-generation multi-core CPU platforms.
  • SUPPORT MULTI-GPU TECHNOLOGY
    Support PCI Express 2.0 next-generation graphic card with 8(6+2)pin PCI-E connector.
  • HIGHEST DURABLE & RELIABLE SOLID CAPS FOR 12V,3.3V,5V
    The best solution for a High-End PSU by using solid caps for 12Vs, 3.3V, 5V, solid caps provide highest efficiency, best reliability, and extend power lifespan.
  • 105°C JAPANESE CAPACITORS
    COUGAR® use highest durable 105°C Japanese capacitors providing uncompromised performance and reliability and delivering 4 times the lifespan of conventional 85°C rated capacitors.
  • HIGH PERFORMANCE AT 50°C
    Non-stop high performance and full rated wattage at 50°C/122°F ambient temperature.
  • HDB (Hydro-Dynamic Bearing) 14cm FAN
    Advanced HDB (HYDRO-Dynamic Bearing) fan provide best lifespan and super silent performance. Temperature-controlled design adapts its rotating speed to the PSU temperature. Even on its highest rotating level the fan is still quiet enough to be barely noticeable.
  • DYNAMIC MULTI-12V
    Automatic dynamic load distribution on multi-12V line provide power separately to the GPU and the CPU. If you are not using all output lines, the PSU automatically reroutes needed power from unused lines. This improves the performance and safety of the 12V lines considerably for systems with high-end graphic cards in SLI® or CrossFire® mode and provides high voltage stability to keep components safe.
  • FLEXIBLE CABLE MANAGEMENT
    The modular cables that reduce air friction help maximize airflow through the PC case. The modular design also simplifies installation as it allows unprecedented flexibility in using only those cables which are needed.
  • COMPLIANT WITH LATEST EUROPEAN DIRECTIVE 2005/32/EG (EuP)
    In Standby consumption is ‹0.3W, compliant with economy-friendly electrical equipment.
  • SUPPORTS THE ENERGY STAR 5.0
    Compatible with Energy star 5.0 computer system.
  • FULL PROTECTIONS WITH OCP, SCP, OVP, UVP, OPP, OTP

 

Model Name AC input DC output
+3.3V +5V +12V1 +12V2 +12V3 +12V4 +12V5 +12V6 -12V +5Vsb Total output

G 600

110-240Vac
50-60Hz
10-5A

25A

25A

20A

20A

24A

24A

-

-

0.5A

3.5A

600W

150W

588W

G 700

110-240Vac
50-60Hz
10-5A

25A

25A

22A

22A

24A

24A

-

-

0.5A

3.5A

700W

150W

696W

G 800

110-240Vac
50-60Hz
10-5A

25A

25A

22A

22A

24A

24A

-

-

0.5A

3.5A

800W

150W

792W

G 900

110-240Vac
50-60Hz
13-7A

25A

25A

25A

25A

25A

25A

25A

25A

0.5A

4A

900W

150W

876W

G 1050

110-240Vac
50-60Hz
13-7A

25A

25A

25A

25A

25A

25A

25A

25A

0.5A

4A

1050W

 

Connector

Main Conn.

Peripheral Conn.

Floppy Conn.

ATX/EPS12V Conn.ATX12V Conn.ATX12V Conn.

S-ATA Conn.

S-ATA Conn.

PCI-E Conn.

Main Conn.

Peripheral Conn.

Floppy adapter.

CPU Conn.

S-ATA Conn.

PCI-E Conn.

PCI-E Conn.

24(20+4) Pins

4 Pins

4 Pins

8+(4+4)+4 P

5 Pins

6 Pins

8(6+2) Pins

G 600

1

5

1

1

8

2

2

G 700

1

6

1

1

9

1

3

G 800

1

6

1

1

10

-

4

G 900

1

7

1

1

11

2

4

G 1050

1

7

1

1

12

-

6

 

The above diagram shows how the cables relate to the modular connectors.

  

PSU Packaging  

 

We always like to see a nice colourful box, even in todays market where such items are usually bought online. At large PC stores it can be very daunting to see row after row of shelves stacked with white boxes and having to examine them closely to see what they are. The box the GX1050 comes in is strong and well built with extra sections inside to protect the PSU body. Incidentally, the box is the largest and heaviest PSU we have handled. All the right certification is present along with a 5 year warranty so things are looking good so far.

 

The back of the box contains all the key data to make a purchasing decision and shows the connectors in graphical format. This is of particular benefit to those occasional (as opposed to hardcore or professional) PC builders who may not be able to name every connector type but would recognise them on sight. Also explained is the 14cm Hydro Dynamic Bearing fan.

 

 

Opening the box makes the quality evident.This is the best presented PSU we have reviewed and all adds up to create the impression of being the Rolls Royce of the power supply world.

  

PSU Build and Cabling  

As well as the obligatory cables, a lot of modular cables are provided. All are of a good length (suitable for full tower cases) and solidly braided. If this were not a modular design, it may well have overwhelmed the cable management system of any modern enclosure. Gold plated connectors are used throughout.

 

 

The PSU has a look of enormous quality and any PC owner would be proud to have this in their system.

  

The sticker shows the important details of power by voltage and rail and it is crucial in our opinion to understand the way the power is distributed (treating the 1050W as a lump sum could lead to problems if things are not carefully balanced in a heavy duty system). We recommend downloading and reading the detailed manual on Cougar's web site (we can’t post a direct link as its dynamic).

Every aspect of the design points to premium quality with embossed gold lettering. The finish is that of solid granite and not a thin metal shell.

Looking at the back we see the traditional rocker switch and mains connector and also that the rest of the plate is devoted to ventilation. We've seen some power supplies with less than half the back surface area making up the grill and this can lead to pockets of heat building up.

 

A closer look at the modular connectors shows how the rails are colour coded. Some vents allow air to escape into the case in return for providing better cooling of internal components.

 

The advanced HDB (HYDRO-Dynamic Bearing) fan provides the best lifespan and silent performance. The temperature-controlled design adapts its rotating speed to the PSU temperature. Even on its highest rotating level the fan is still quiet enough to be barely noticeable.

 

Looking inside a number of things spring to our attention. The capacitors are Japanese 105 degrees units which should last approximately 4 times as long as the 85 degrees units we see in most other high end power supplies. The CLC filter design reduces ripple/noise to less than 1%. Solid caps provide the best efficiency at 12V, 3.3V and 5V and the standby power rating is less than 0.3W meeting European Directives. Dynamic Multi-12V automatically routes spare power from unused lines to meet the requirements of high-end graphics cards.

 

PSU Performance

We tested the Cougar GX G1050 under a variety of different loads and configurations (including two Radeon HD 6990s in CF).

Efficiency varied from 93% at half load to 89% at full load.

At a room temperature of 25 degrees the exhaust temperature varied from 28 degrees at idle to 39 degrees at full load. Similarly, noise from the PSU went from 31dB at idle to a maximum of 44dB.

Temperatures are very good and no doubt helped by the clean and tidy layout of the main PCB. Noise levels are effectively silent and even at their loudest will probably be dwarfed by GPU and CPU cooler noise in a typical system.

There is a great deal of in-depth material on the features and capabilities of the Cougar GX range at the Cougar website.

 

Conclusion

We were very surprised at just how good the Cougar GX G1050 is and the sheer quality the product possesses. For a name we hadn't hear of a month ago, Cougar have a product that beats the biggest names in the industry. 93% efficiency is remarkable and we had no trouble running dual Radeon HD 6990s (4 GPUs) in overclocked mode.

For superb build quality, price/performance and the use of exceptional quality components, we award the Cougar GX G1050 PSU our Gold Award:


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