With the results we've just presented, it's pretty easy to come to a conclusion. Zippy's origins of being a server and redundant power supply maker are clear in many aspects of the G1. Everything is built to survive even in difficult operating environments, but it needs to be cooled efficiently. To help cool it down, you need a lot of airflow, and if with an 80mm fan that means high RPMs to suck the air through the PSU as fast as possible. Many rack servers are built in this fashion, with numerous small, high-RPM fans. Needless to say, such servers are anything but quiet.

So what sort of people would buy this kind of power supply? It will surely not be the silence enthusiasts or those looking to build a decent HTPC, and neither will it be somebody building a PC for the living room that will run 24/7. Those who would be willing to buy this power supply and stomach the high buying price will need to be real performance enthusiasts that don't care about noise. If you want a stable and reliable power supply that will perform well under just about any circumstances, the Zippy G1 is worth a look. In most other areas, it unfortunately falls short.

Efficiency Comparison

From the efficiency point of view, we the results aren't spectacular. With just 81% efficiency using 230VAC, the Zippy doesn't break any new ground in the high-end PSU market. The standby efficiency was quite low as well, generating results as low as 14% (albeit at loads that make such a result less critical).

Zippy is producing all of their power supplies in Taiwan, and this is clearly visible in the build quality. The 12V rail is the most stable we have seen so far. We would have liked to see more PEG connectors instead of only two 6-pin connections, particularly for a "gaming" PSU, but for upper midrange or lower high-end configurations this should still be sufficient. With this 600W power supply you can definitely run higher-end systems, but you might want to look elsewhere if you're interested in quad core processors, overclocking, and dual high-end GPUs. (Ed: as in, all three at the same time - such configurations can pull over 750W at load!). If you're looking at running a setup with a lot of hard drives, however, you do get plenty of peripheral connectors, and lengths of up to 75cm are sufficient for use with most tower cases.

Availability in the market is not where we'd like it to be, and we hoped to see this PSU at more resellers by now. Unfortunately, we have been unable to find any major shops that stock this power supply at present. A quick search with Google did result in a couple hits, but with prices starting at $170 we have to say that there are certainly better options. The Zippy G1/GSM-6600P certainly performs well and we can recommend it to people looking to build a high-end system who don't care about the noise levels and the lack of PEG connectors. We're not sure many individuals actually fall into that category, however, and there are definitely other vendors with similar or better products.

With their gaming series Zippy has made a first attempt at catering to the retail market and created a hybrid power supply that sits somewhere between gaming and server needs. It ends up not quite satisfying either market, and it needs a lot of tweaking before it can become a true gaming power supply that we can fully recommend.

Fan Speed, Acoustics, and Temperatures


View All Comments

  • Super Nade - Friday, August 3, 2007 - link

    I wonder if you guys have access to 2900XT's and a quad to actually test this unit?

    I would have to disagree with you on comparing Seasonic to Zippy. Most currently available data suggests that Seasonic won't match up in terms of voltage regulation (ex: 's data and JonnyGURU's data).

    Lack of connectors can be a shortfall, but I'm not sure if anything else really matters. I suppose we are looking at things from different perspectives. From an Engineering standpoint, I love the Zippy. That is how I look at things. EMI, good surge protection, resonant Q-Filter on the input, an MOV ... and everything else that leads to workhorse performance is how I look at it.

  • JarredWalton - Saturday, August 4, 2007 - link

    Just turning off the highlighting (white text).
  • Bjoern77 - Friday, August 3, 2007 - link

    It's nice to see some different power supplies tested, and not again a Infiniti 720W test ;)
    (though i'd appreciate a 650w infinity test, since i'm currently choosing between the 650W Infiniti and the Seasonic 650w Energy plus)

    And i wish Anandtech would put out reviews and guides at at least half the speed you do - ok, a bit unfair, since you review one by one.

    Keep going,

  • Bozo Galora - Friday, August 3, 2007 - link

    Well, no one can say this review has a sugar coated conclusion - lol

    Its nice to know you can tell it like it is, even tho you are reviewing a unit that Zippy themselves sent, not one that you purchased retail.
  • wolfman3k5 - Friday, August 3, 2007 - link

    Good review, really do appreciate it. This is the kind of product I like reviewed, not Enermax 500 Watt PSU that anyone can get their hands on. Heck, even the shop down the street from me had Enermax Liberty PSUs in stock. Zippy makes decent enthusiast/server PSUs, how ever I prefer to stick to my PC Power & Cooling Quad 750W. Keep up the good work guys, and thanks again for the review.
  • Talcite - Friday, August 3, 2007 - link

    I love how you guys have these new reviews on the PSUs but I sure miss the oscilloscope readings that other sites have posted. Is your chroma tester capable of also putting one of those out?

    None of your graphs realistically depict spikes and sags in the voltage, only the average obtained in the long run. I was under the impression that the ATX specs require PSUs to be within a specified range for both sustained voltage changes and instantaneous voltage changes.

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