OCZ Z1000M Overview (1000W)

OCZ's Z-series Z850 and Z1000 are the oldest available 80Plus Gold PSUs for high-end PCs. They're also the only OCZ models with 80Plus Gold in OCZ's range of products. Are they able to keep up with the more modern PSUs? We'll see, but OCZ makes their package a bit more interesting with a generous supply of cable ties, two power supply cable (for different power grids), and a nicely written user's guide. In addition, the standard 5-year warranty isn't too shabby. The Z1000M that we will review today is SLI-ready, has active PFC, and as the "M" suffix indicates it includes modular cable management. The PSU case has a length of 16cm.

Cables and Connectors
Fixed/Modular Main 24-pin 55cm
ATX12V/EPS12V 4+4-pin 60cm / 8-pin 60cm
PCIe 6x 6/8-pin 60cm
Peripheral 3x SATA 50-80cm / 3x SATA 50-80cm / 3x SATA 60-90cm
3x Molex 55-85cm + Floppy 15cm

There are two very long 8-pin connectors for the CPU, which is nice to see. In contrast to that the six 6/8-pin PCIe connectors are a common configuration for a 1000W PSU. We'd might like to see OCZ offer one more cable with Molex connectors, as there are only three on a single cable. All cables have a length of more than 50cm, and as usual the mainboard cables are fixed.

Globe Fan is the manufacturer of the large fan in the OCZ PSU. The model number is RL4Z B1352512H, a ball-bearing type with a maximum rotation of 1500RPM. This is a common choice Sirtec-manufactured PSUs.

Internally, you can see the typical Sirtec design with an 80Plus Gold configuration. We find the DC-to-DC converter, Infineon transistors with a low DS resistance, and a good looking EMI-filterung stage including a MOV. For safety functions OCZ uses a PS224 from Silicon Touch. The heatsinks seem to be small, but they should be enough for a strong cooled and very efficient power supply. Some outgoing cables on the left side are pinched by two cables ties, which isn't the best way of doing things but should work well enough.

Meet The Candidates OCZ Z1000M Regulation and Ripple
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  • SirGCal - Thursday, December 9, 2010 - link

    Ditto! I have bought nothing but Corsair powersupplies for quite some time. I got tired of my Antec supplies dieing out on me so I switched to some of the others (Seasonic) but once I found the new (at the time) Corsair's lineup... There was no competition. And generally speaking, I don't buy their ram or other products, but their power supplies are rock solid.
  • Squuiid - Thursday, December 9, 2010 - link

    Where's the Corsair?!
  • aandea - Thursday, December 9, 2010 - link

    Where's the Corsair?!
  • Martin Kaffei - Friday, December 10, 2010 - link

    Well, we can't test all brands out there, but we've already reviewed the AX 750, which is a very good PSU and this roundup wasn't the last one. I'm sure, Corsair will send more samples, if you are interested.
  • landerf - Friday, December 10, 2010 - link

    The AX 750 and the AX1200 are hardly comparable. You can't just assume by the model line, especially with corsair. They're not made by the same manufacturer. The AX is considered "god" tier at the moment, so it'd be expected to be in any such comparison.
  • landerf - Friday, December 10, 2010 - link

    Meant AX1200
  • Havor - Friday, December 10, 2010 - link

    Still the AX1200 belongs among the tested products as its the only one that is in the same range as the Antec High Current Pro 1200W
  • Jerricho24 - Friday, December 10, 2010 - link

    I also have a few corairs and would have liked to see the AX1200 set along side the enermax Revolution 1250 or Galaxy 1000(that I also have both of)
    the REAL top end players seem to be missing from 1000W+ review.
  • Beenthere - Thursday, December 9, 2010 - link

    ...it's good to expose that some known and unknown brands have mediocre PSU quality. Now days you need to consider accurate PSU reviews on the specific model PSU you are considering purchasing as the quality and performance can vary drastically from one PSU model to another of the same brand.
  • SirGCal - Thursday, December 9, 2010 - link

    Even the Corsair CMPSU-1000HX or CMPSU-950TX would have been interesting in the mix. Let alone the AX1200 monster.

    But still, the majority of users who aren't running tripple SLI won't need anything more than a 600-900W unit depending. It would be more interesting to see a good comparison of say the ~750W range. That'll hold most systems even with two GPUs in many cases. But no problem at all with any single GPU as the majority of users run.

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