NorthQ Giant Reactor 1kw ATX PSU

Test Results

Load Testing

To provide our readers with the most accurate results, Overclock3D uses a custom built PSU load tester on all reviews. This not only gives much more reliable results than the testing methods employed by other sites, but also allows for all current and future review results to be compared side-by-side.

Efficiency tests are performed by measuring the wattage consumed by the power supply at the mains (Mains Draw) against the power consumed by the OC3D power supply stress tester (PSU Load). These results may not be 100% accurate, but have proven to be extremely close to results obtained from professional equipment.

  0% 50%100%
+3.3v Rail
0w33w 66w
+5.0v Rail
0w50w 100w
+12v Rails
0w360w
720w

NorthQ Giant Reactor Load Tests NorthQ Giant Reactor Efficiency Tests

When testing the Giant Reactor we wanted to place it under under a load as close to 1000w as possible. Unfortunately, due to the layout of the rails on the unit and the matter of not being able to 'dial in' exact load levels on our stress testing equipment, the highest load we was able to place on the Giant Reactor without overloading the unit was 886w.

As you can see from above, even with only an 886w load placed on the unit, the voltages on the +5v rail dropped to 4.87v and more worrying the +12v rails dropped to around 11.70v. I can only speculate that if a full 1000w load was placed on the unit, we'd see some even lower results from each of these rails.

Despite the relatively poor results from the rails under full load, the efficiency of the unit was calculated at a respectable 82.73% with a total of 1071w being drawn from the mains.


Temperature Testing

In our continuing efforts to make power supply reviews more thorough, rather than simply checking voltage stability, Overclock3D will now be recording the temerature of each PSU as it undergoes testing. Temperature recordings will be taken from the PSU's outer casing at 0%, 50% and 100% load levels in an attempt to gauge how much heat is likely to radiate into the end-users case, and how effective the cooling methods are.

NorthQ Giant Reactor Temperature

With an ambient temperature of 21°c, we can see from above that even at 0% load the internal 135mm fan does a good job of keeping things cool and manages to drop the PSU temperature 1°c below room temperature. At 100% load, the heat dump from the back of the unit was recorded at 34°c (13°c above ambient). A pretty respectable result considering the unit was under a load of 886w.


Noise Testing

Possibly the hardest part of any PSU review is summarising the level of noise given out by the unit. The threshold for what is considered 'noisy' varies from person to person and therefore what I may consider a quiet unit, another person may consider extremely loud. A common way to resolve this issue is to use a dBA meter to measure the units noise level, however this doesn't take into account the pitch (type) of noise emitted and whether it is likely to irritate end users.

For this reason OC3D records all power supplies at idle and load in wav format for you to make your own informed decisions. All recordings are taken at 30cm away from the PSU and outside of a PC case. You will need to remember that noise levels will be reduced by varying amounts once the PSU has been installed inside your PC enclosure.

0% Load Recording - Download
50% Load Recording - Download
100% Load Recording - Download

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Most Recent Comments

22-02-2007, 09:27:15

JN
"1000w is a lot of power to squeeze into a standard ATX PSU casing, but somehow NorthQ - a relatively unheard of company, claim to have managed it. Today we take a look at their "Giant Reactor" PSU to see if it can deliver the goods."

Linky

22-02-2007, 09:34:23

FarFarAway
Ouch

Bit out of order rating an 850w as a 1kw

22-02-2007, 09:35:35

techmob
sneaky

do we really need that much power tho

i am chugging along with 580w

24-02-2007, 04:03:56

PV5150
Ripped 'em a new one But, it really is pretty poor form...Admittedly it's cheaper than other 1000 watters out there, but c'mon. Imagine how saggy the volts would be if you could get 1000W out of it.

24-02-2007, 07:23:56

Toxcity
No one will ver buy from them now!

Very nice review but what the hell where they thinking?

24-02-2007, 08:07:41

Rastalovich
It`s a re-badge, I think that`s what it comes down to. As opposed to the regular `user` rating it @ an optimum 850w, they`ve chosen to label it as a "meh, we got 1kw out of it in the labs, 1kw will do".

I`d rate it as 0W tho coz u were lucky to have a spare kettle lead.

24-02-2007, 08:29:15

FragTek
Very shady this company is... I don't mind them rebadging, that's just good marketing really as it is a good PSU, just not as what it's advertised to be. The problem here is that they've stuck it with a higher price tag with the claim of it being a 1kw supply which makes the other 800+w supplies a better choice for the money.

Good review XMS, always nice to uncover the truth
Reply
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