Cougar G1050 - GX 1050W Review

Simulated Load Results (Tables)

Cougar PSU

Simulated Load Results (Tables)

If you've seen the simplified graphs over on the previous page you will undoubtedly already have a good idea of how the Cougar GX 1050 performs. However, certain results from the test can be too difficult to incorporate into the existing graphs, and for this reason all of the result data is also provided in the table format below. 

All testing is conducting using OC3D's trusty SunMoon SM-268+ DC load tester. This equipment is capable of placing a user specified load on all of the PSU's rails (+3.3v, +5v, +12v, -12v, +5vSB) up to a maximum load of 1680w.  As the maximum load for this device on the +12v rail is restricted to 75A we can also call on additional help from our Analogic Series 2000 DC load tester, so that anything up to an additional 166A can be added if necessary. All testing is conducted at 50°C (±5%) with the results being recorded using a Fluke Multimeter and Thermostat.

Cougar GX 1050w @ 50c
   +3.3v  +5.0v  +12v  +5vSB  -12v  AC Watts /
 DC Watts
 Efficiency  Intake /
Δ Temp
5.00A 5.00A 18.25A 1.00A  0.12A 296w /
90.87% 49.6°C /
3.37v 5.07v 12.06v 5.05v  -11.88v
10.00A 10.00A 36.50A 2.00A  0.25A

575w /

92.52%  50.2°C /
3.35v 5.05v 12.00v 4.98v  -11.87v
15.00A 15.00A 54.75A 3.00A  0.37A 859w /
 90.91% 51.5C /
3.33v 5.00v 11.96v 4.91v -11.86v
20.00A 20.00A 73.00A 4.00A 0.50A 1177w /
88.53%  50.4°C /
3.32v 4.98v 11.94v 4.84v -11.79v
20.00A 20.00A 1.00A 0.00A 0.00A 216w /
81.48% 50.7°C /
3.30v 4.93v 12.10v 5.06v -11.92v
 1.00A  1.00A  73.00A  0.00A  0.00A 955w /
91.41% 51.6°C /
3.32v 5.03v 11.94v 5.02v -11.97v
 25.00A 25.00A 74.50A 4.00A 0.50A 1245w /
88.11% 50.1°C /
3.15v 4.77v 11.72v 4.83v -11.93v

A quick browse over the results shows that the GX 1050 puts out its best numbers at 50% load. The efficiency is extremely close to Cougars stated 93% given the margin of error, the +12v rail is at bang-on 12.00v and the +3.3v and +5v rails are also extremely close to their ideal values. Things don't change much either when the load is increased all the way up to 100%. All rails remain extremely tight, and the only result that dips slightly is the efficiency.

Similar things can also be said for both of the cross-load tests, where the GX exhibits stable voltages once again. In fact, the only area that lets the Cougar down slightly is in the Max Load test where the unit fails to deliver much more than 1097w without the voltages falling drastically. This possibly shows that the Cougar is stretched to its limits already and has been designed to deliver 1050w..and not a drop more.

 Cougar GX 1050w Scope Results @ 50c
   +3.3v  +5.0v  +12v
Cougar PSU Cougar PSU Cougar PSU
Cougar PSU Cougar PSU Cougar PSU
Cougar PSU Cougar PSU Cougar PSU
Cougar PSU Cougar PSU Cougar PSU
NZXT HALE90 850w Review53 NZXT HALE90 850w Review55 NZXT HALE90 850w Review512
Cougar PSU Cougar PSU Cougar PSU
Cougar PSU Cougar PSU Cougar PSU

Ripple refers to the small fluctuations in voltage that occur in all PSU's on a millisecond scale. Large quantities of ripple on a PSU can damage or kill components in your PC over time and therefore testing a PSU's performance in this area is just as important as any other part. ATX specification states that ripple should be no higher than 50mV on the +3.3v/+5v rails and 120mV on the +12v rails, so what we're looking for in the screenshots above is for all rails to stay well within these limits during Test 1-4 at the very least.

Aaaaand......we have a pass! The GX 1050 manages to keep everything well in check throughout all of the standard tests 1-4 with a maximum ripple of 64mV on the +12v rail and 32mV or less on the other rails. Although this may not be the best results I've ever seen from a PSU, it's certainly one of the better outcomes.

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Most Recent Comments

08-08-2011, 07:43:17

WB Jim! Quote

08-08-2011, 08:55:22

Nice looking psu,but i can get a corsair ax1200 for less money.

Good review though,and paired with Toms video,all corners covered.Quote

08-08-2011, 09:07:23

Great to see you back Mr Jim.

Good to see yet another monster PSU from Cougar too. I still haven't heard any 'whoops it's dead' comments about the CM1000.Quote

08-08-2011, 09:16:13

Great review Jim! and Welcome Back :-) Loving those graphs slightly off topic sorry! Looks like for me orange is the new black, actually no orange & black is the new black on its own lol

Keep it up guys, our tech thirsts need quenching like this :-)Quote

08-08-2011, 09:46:36

"Cougar - Not just your best friends mum" - Priceless!

A bit expensive for my tastes, but a nice looking product nonetheless.

Welcome back Jim Quote

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