Confusion over output of OCZ ModXstream Pro 700W

Akagi · 20 Nov 2012 at 21:03

My PSU is called the ModXstream Pro 700W so can somebody please explain these power ratings to me, and tell me if my '700W' PSU is actually a 550W PSU in disguise, and if not, please explain to me my misconception.

http://www.ocztechnology.com/images/awards/mxsp_wattage_charts.jpg

I'll be honest, this has got me worried, and wondering how OCZ can get away with this bull****.

Is this PSU capable of running this setup?

i5 2500K @ 4.7GHz (1.36v)
Kuhler 620 (with 2 corsair SP120's in push-pull)
12GB Corsair Vengeance Black (2x 4GB + 2x 2GB)
Asrock Extreme 4 Gen 3 Z68
EVGA GTX660 Superclocked SLI (660 not 660TI)
1TB Spinpoint F3
2TB WDC Green
64GB Samsung 830
Samsung BD123L Blu-Ray drive
Asus Xonar Essence STX
3x 140MM LED fans
NZXT Hue lighting.

The Coolermaster Advanced PSU Calculator rates the above spec at 593W.

Akagi · 20 Nov 2012 at 21:28

Surveyor said:
It is a 700W PSU just not a particularly good one as far as the output is concerned as it's only 552W on the 12V rails which is where most power is drawn from on a modern PC.

Can you elaborate on that a little for me please Surveyor?
How can it be a 700W PSU if it has those power ratings? Surely it should be called a 550W PSU?

I have seen Corsair 750W PSU's which output 740W on the 12V rails as well as the 170W or so split between the other rails.

Akagi · 20 Nov 2012 at 22:11

So in essence then, it is a 700W PSU, but probably the most rubbish well branded one you can get?

Akagi · 20 Nov 2012 at 22:20

I believe that I got it for £46 in September 2011 though... Which seems fair enough I suppose.

Akagi · 20 Nov 2012 at 22:22

Surveyor said:
Perhaps a bit extreme but you could put it that way.

Lol thanks haha :L

Back in september last year I did not know as much as I do now about computer hardware. If I went back and did it again, I would never have bought an OCZ PSU, I would have spent a little extra on a RealSSD M4, and I wouldnt have bought my pain in the arse loud GTX480...

Akagi · 20 Nov 2012 at 22:36

Sasahara said:
Still you'll be nice and toasty in the freezing winter months, my GTX 670 is only a moderate heater. :/

I'm sorry to hear that

I'll tell you what, since I have a radiator next to me anyway, I'll swap the GTX480 for your GTX670?

Seems fair, that way we will both be warm

I see literally no flaws in this plan. :rolleyes:

Akagi · 20 Nov 2012 at 22:58

Sasahara said:
That's a kind offer, thanks.

Fortunately my spare PC has a HD 4890, so if I have one on each side I should match the GTX 480s heat potential and still keep my fps.

Damn

But it will be unbalanced

the GTX480 will solve that problem

and it will still provide you with some FPS haha

Akagi · 12 Jan 2013 at 10:09

Just found out that the OCZ ModXstream Pro 700W is actually a Sirtec Absolute Power 650W with the ATX and CPU power cables made non-modular. So even the OEM of the PSU rated it as 50W less than OCZ had the cheek to. Just read an in-depth review of the PSU, they had two units fail on them when trying to load the PSU at its maximum rated power output despite the fact that the documentation provided claims that is is able to function under 100% full load, and when you try to go to the website of the capacitor OEM the browser warns of malware attacks. Lovely. My computer is such a fail

My next decent paycheque will be for a new PSU, motherboard and a few fans. That way it wont be a partially burned fire-hazard of death anymore. Oh, and it might beep when I start it up. That is very important. :rolleyes: