Conclusion

So how does the Shuttle SN27P2 stack up? We can of course unequivocally state that this is the best SFF for socket AM2 that we have ever tested, and that about sums things up. Right now, if you want an AM2 SFF computer, you have exactly one choice. We have heard of a couple other AM2 SFF units that are in the works, but it's also worth noting that we saw nothing during our testing of the SN27P2 that indicates it has any major problems. What about minor problems or concerns?

The biggest concern we have right now is with the BIOS implementation. It generally works, but it is still a bit rough in some areas. For example, the CPU multiplier setting is currently ignored when the AMD CPU driver is installed under Windows. We have seen this on at least one other motherboard (the Gigabyte GA-M59SLI-S5), and really all that is required is an updated BIOS to address this issue. There was one other slightly odd issue we noticed periodically, and again it seems to be BIOS related. When the system is powered off, the CPU and case fans sometimes continue to spin at low RPMs. (The power supply fan is not active.) It almost seems as though the system is put into a sleep state rather than powering off sometimes. As we have yet to see any e-tailers selling the SN27P2, we're hopeful that these minor issues will be addressed before the system begins shipping. Of course, if you don't plan on using the CPU multipliers and leave the system running all the time, you won't notice either issue.


In many ways, the SN27P2 simply carries on the Shuttle tradition. It is an attractive, small, reasonably quiet, high performing computer that can easily pack as much power as many full-size ATX computers. You continue to give up expansion options, but many people only use a single graphics card, integrated audio and networking, along with a single hard drive. Shuttle has improved expansion options slightly this time around, with support for e-SATA as well as four DIMM slots. If you don't already have a Shuttle SN25P (or the SLI enabled SN26P) or a Biostar 330P, and you're looking for a new SFF system, the SN27P2 is certainly a good choice. It will also cost quite a bit more than an equivalent ATX system, but that's pretty much par for the SFF course.

There are two major events that need to take place before we would recommend most people go out and buy this system, however. First, it needs to be available for purchase, which should occur in the near future. More importantly, as we've mentioned repeatedly over the past few weeks, you might as well wait a month now and find out what happens with the Core 2 Duo launch. That also gives the side benefit of lower X2 CPU prices, so even if you're not interested in Intel's new processor lineup for whatever reason, the AM2 price cuts are likely to keep you waiting another month. What we don't know is whether or not Shuttle -- or any of their competitors -- will come out with a Core 2 Duo SFF unit anytime soon. SFF offerings tend to trail behind desktops in terms of availability and launch dates, so it could be three or more months before Core 2 Duo SFFs actually show up. If you're in no hurry to upgrade, that's fine, but if you're in the market for a new SFF computer, the SN27P2 is the best option available in the near term.

Noise, Heat and Power
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  • SoSpartan - Tuesday, August 1, 2006 - link

    Why do you state that the SN27P2 has a 400W power supply when your pictures clearly show a 350W power supply? Shuttle's website says 400W prominently, but their PDF spec sheet says 350W! What's the deal? The extra 50W could make the difference between running a nVidia 6800 vs 7900GTX or 7950GX2 stably!
  • akp - Sunday, July 2, 2006 - link

    Nice review in general, but I feel like there's one thing really missing. As you say on page 6 (Benchmark setup):

    The key feature for the SN27P2 of course is its size, but noise control is also likely to be a major consideration.
    If you are simply planning on using the system as the core of an HTPC, our recommendation would be to grab one of the many fan-less GPUs that are coming to market, probably a 7600 (GT as an upgrade) or an X1600 Pro/XT would strike a decent balance between performance and power/heat requirements.

    Given those factors, wouldn't it have made a lot of sense to include a fanless GPU in your benchmark setup? I really have to wonder how much of the power draw and noise was coming just from the graphics card in those tests.
  • JarredWalton - Sunday, July 2, 2006 - link

    Actually, the majority of the noise under full load with the 7600GT comes from the CPU. However, the GPU is contributing a bit in that configuration. A fan-less GPU wasn't included because I don't have one at present. The idle noise with the 7600 GT used is almost entirely generated by the CPU/case cooling - maybe subtract 2 dB for the GPU at best.
  • artifex - Saturday, July 1, 2006 - link

    What was the temperature like when all bays were full of either hard drives or an active DVD burner? I'm wondering if it can really keep up in a situation like that. In my tower, my drives seem to get really hot without extra cooling. Please consider adding a test like this the next time you review SFFs.

    Also, e-SATA sounds cool, but that's strictly a drive interface. Wouldn't another firewire port have been more useful? Is e-SATA faster than FW400? If I use the firewire in the back for one external firewire drive, that means I'm left with a minifw in front for video cameras, etc. I'd really like more flexibility, there, so I'll be looking forward to your reviews of other AM2 SFFs for sure.
  • JarredWalton - Saturday, July 1, 2006 - link

    SATA tops out at 300 MB per second these days (though in reality hard drives can't come near that number for sustained performance). FireWire 1394b tops out at 800 Mbps (one third as fast) and 1394a only hits 400 Mbps. That said, FireWire is a far more flexible interface, as there are many peripherals that use it. So far SATA is only for hard drives.

    As for installing three HDDs, I'd be very nervous if they were all hot drives. However, I have an SN25P with two HDDs that has been in use for about a year and it has no problems with temperatures. Under the right conditions (or wrong conditions if you prefer), the fans in the case will simply have to spin faster and make more noise. I don't think 51 dB is as loud as the SN25P can get, and the SN27P2 is basically the same in terms of cooling.

    Note that the rear of the case does have two 60mm fans just for cooling the HDD area (mostly), so the only HDD spot I'd be concerned with is the floppy/HDD area, and then only if you were planning on running three HDDs along with a big GPU like a 7900 GTX or X1900 XTX. Even then, those large GPUs would probably just end up adding more noise and helping ventilation.
  • artifex - Monday, July 3, 2006 - link

    Well, this might replace my Antex Soho tower with 3 accessory fans, so I'm used to the noise already. Also, I only have a 5500 since I'm not a big gamer, so this is looking better. Thanks again.
  • Howard - Saturday, July 1, 2006 - link

    What's an SPL meater?
  • JarredWalton - Saturday, July 1, 2006 - link

    Sound Pressure Level. Just a small device to measure how much noise is present. For example, I'm sitting in front of a 24" fan right now, which is rather noisy. It generates 55 dB of noise at a distance of six feet. Scary that some PCs are as loud as a standing fan. :|
  • AnonymouseUser - Saturday, July 1, 2006 - link

    What is the point of the last paragraph? This was a decent review until the very end.

    "There are two major events that need to take place before we would recommend most people go out and buy this system, however. First, it needs to be available for purchase"

    OK, that makes sense, but that pretty much goes without saying that it needs to be available before you can buy it.

    "More importantly, as we've mentioned repeatedly over the past few weeks, you might as well wait a month now and find out what happens with the Core 2 Duo launch. That also gives the side benefit of lower X2 CPU prices, [[ so even if you're not interested in Intel's new processor lineup for whatever reason ]], the AM2 price cuts are likely to keep you waiting another month."

    How does this affect the peformance of the SFF in the review? How does this affect the price of the SFF in the review?

    This was a review of an AMD based SFF, not a comparison of AMD/Intel cpus, so we don't need your opinion on which CPU brand to choose.
  • Frumious1 - Saturday, July 1, 2006 - link

    OMG Jarred! How DARE you mention crazy things like launch dates and prices cuts. WTF do those have to do with a review about an expensive-ass Shuttle SFF!? We AMD fanboys prefer to bury our heads in the sand and pretend that Core 2 Duo is just a bunch of lies and that AM2 will remain superior until hell freezes over. (Which, incidentally, is scheduled to happen around July 25th last I heard....)

    Seriously Anonymouse do you work for AMD or something? You many not give a damn about Core 2 Duo, but most of us don't have our blinders on. "How does this affect the peformance of the SFF in the review? How does this affect the price of the SFF in the review?"

    I'd say that it means future SFFs like the SD37P2 will offer better performance than anything you can put in the SN27P2 (at least until AMD ships something other than a three-year-old K8 derivative), and it means that for the same $400+ that the Shuttles are going to cost you could end up with a better (faster and cooler running) SFF. Yes I said it: Core 2 Duo will be BETTER than AM2 X2! So stick THAT where the sun don't shine (right next to your head).

    Freaking amazing how that thing called logic works, innit?

    For the record, I don't work for Intel or AMD, and I wouldn't buy a SFF unless the price was the same as that of an ATX case + mobo + moderate PSU. Just about any reasonable ATX case is going to end up quieter than these SFFs if you build it right.

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