OCZ Z1000M Regulation

+3.3V regulation
Load Voltage
10% +2.73%
20% +2.12%
50% +1.21%
80% -0.61%
100% -1.82%
110% -2.42%

+5V regulation
Load Voltage
10% +2.40%
20% +2.40%
50% +1.40%
80% +0.40%
100% -0.40%
110% -0.80%

+12V regulation
Load Voltage
10% +1.83%
20% +1.75%
50% +1.42%
80% +0.92%
100% +0.33%
110% +0.08%

The +12V rail is very stable and always above 12.00V. Only the +3.3V could use better regulation, as it shows a voltage drop of more than 5.15% during our test from 10% to 110% load. +5V starts sonewhat high and ends 0.80% under the optimal value.

Ripple and Noise

+3.3V ripple quality
Load Ripple and noise
10% 14.80mV
20% 18.40mV
50% 20.90mV
80% 28.50mV
100% 33.20mV
110% 35.30mV

+5V ripple quality
Load Ripple and noise
10% 20.90mV
20% 23.50mV
50% 27.90mV
80% 34.40mV
100% 42.60mV
110% 46.80mV

+12V ripple quality
Load Ripple and noise
10% 46.80mV
20% 57.30mV
50% 74.80mV
80% 90.30mV
100% 101.60mV
110% 118.30mV

OCZ has some small transients on +3.3V, while +12V shows a high ripple, but they are all still within specifications. While technically satisfactory, the results certainly aren't great for a very expensive PSU. 118mV on +12V and 47mV on +5V are both very close to the 120mV and/or 50mV limit.

OCZ Z1000M Overview OCZ Z1000M Noise, Efficiency, and PFC
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  • dubyadubya - Friday, December 10, 2010 - link

    Corsair supplies are great and should have been included in any review. You make it sound like Corsair makes their own supplies but they don't. The AX series is made by Seasonic and based on the X series. Their other supplies are made either by CWT or Seasonic. Both of which make great supplies. So in reality any PSU comparison review must include supplies built by Seasonic and CWT.
  • scook9 - Friday, December 10, 2010 - link

    Actually the AX1200 that is the king of the desktop power supplies right now is made by Flextronics. Corsair uses 2 different OEMs in their AX line up. This is why the AX1200 is the only model from the AX line I would consider. I already have a HX850 so would gain next to nothing with a AX850
  • brotj7 - Friday, December 10, 2010 - link

    If a midtier review is being considered, please include some push/pull designs, or at least some high quality PSU's with an open grate in the front, and a fan in the back. Some of us are stuck with cases with wind tunnels like an antec p180 and the like, these do not lend well to a top/bottom mounted fan.
  • Wander7 - Friday, December 10, 2010 - link

    I've had 2 Antec Neos die on me the last three years. Hope no one else has my luck
  • vol7ron - Friday, December 10, 2010 - link

    Cougar has a CMX 1000w PSU, does anyone know how this compares to the GX 1050?
  • Martin Kaffei - Monday, December 13, 2010 - link

    It's a little bit worse.

    Same fan, less 8-pin PCIe connectors, less efficiency.
  • TechieFan - Saturday, December 11, 2010 - link

    When you perform a more thorough review, please include the "Thermaltake ToughPower 80 Plus Power Supply". I just purchased one and would love to know how it stacks up vs. the competition.

    I'd also appreciate a bit more detail regarding the comment that a 1200 is overkill for most people. While I'm sure that's true, if you run some of the powersupply estimators availble online it's somewhat surprising how much power they suggest (I run two GTX 580's (not 3) to my HP ZR30W and they suggested a 1075 psu minimum with my setup.)
  • METALMORPHASIS - Sunday, December 12, 2010 - link


    I don't need anything bigger to start my car with yet.
    And thats more than enough for my rig today.
  • JimDDuncan - Monday, December 13, 2010 - link

    Alot of people asked for ax1200 for good reason. Jonnyguru has a very complete test of this psu. It is rated very high on efficiency. No mention of it there but more than a few buyer reviews complain of coil whine. There is also a youtube vid displaying this. Still my choice and arrives tomorrow. Btw another site successfully ran four gtx 480s on it. Impressive but point of diminishing returns. Good luck with your choices. If this post stays up I will continue to visit this site. New here.
  • Sabresiberian - Wednesday, December 15, 2010 - link

    Anandtech has run tests on mainstream PSUs recently - and runs more of them than on these kinds of PSUs. As far as people like you it's an obvious waste of time anyway, I doubt you'd actually read the articles if you found them.

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