Conclusion

It will not be very easy to reach a verdict for the Fortress FT05. It is a peculiar existence, a case mixing the rotated motherboard design of the Raven series with the classy solidness of the Fortress series. The first SilverStone cases that had a rotated motherboard layout were peculiarly shaped and very long designs. SilverStone remedied that by compacting the internal dimension of their latest cases significantly, making them no larger than a typical Midi-ATX case. This design however remains a double-edged sword, as the reduction of the internal dimensions has a dramatic impact on the expandability and flexibility of the case.

On the positive side, the company claims that the rotated motherboard design offers significantly better performance. True enough, convective heat transfer suggests that higher temperature air will naturally flow upwards, so the design does make sense. The case does act as a convective heater, forcefully injecting low temperature air from below and releasing higher temperature air from the top. With the massive airflow of the Penetrator fans and the compact internal dimensions of the Fortress FT05, this process gives it exceptional thermal performance, rivaling that of much larger cases.

Even though this design offers such excellent thermal performance, the negative side of this design can be overwhelming when it comes time to build a system with it. Expandability and flexibility suffers, significantly limiting the number and type of hardware that can be used. Generally, the addition, upgrade or even the removal of components can be a tedious process. There is very little room for proper cable management and almost every change requires the use of tools and the removal of several parts. There is virtually no way to work around the Fortress FT05 without at least two Philips screwdrivers (PH1 and PH2) at hand. For example, upgrading the GPU at the very least requires the removal of the side panel, the manual removal of the metallic cover shielding the expansion slots and then the removal of the card itself, even by assuming that both graphics cards are using the same number and type of power cables.

The two 3.5" and two 2.5" drive bays should be sufficient for the majority of users but their positioning can be problematic. The 3.5" drive cage may need to be temporarily removed in order to install a PSU, permanently even if the PSU is longer than 170 mm. Installing 2.5" drives at the back of the motherboard tray is an easy process but the cable job can be very messy, especially if a drive is being replaced or added afterwards.

The disappearance of the 5.25" bays is not an absurd design move, as users are constantly moving farther and farther away from optical media. A very large percentage of PC users would nowadays have no use for an optical drive at all. However, for those that do want/need an optical drive, the solution of the internal slot-loading slim drive is an overly expensive option. Casual users would likely be better off with a USB optical drive, which offers the flexibility of use with any system as well. Those that need an optical drive on a daily basis however will be forced to pay the premium price of a slim slot-loading device.

For a typical system with a single GPU and a mainstream motherboard/CPU combination, the Fortress FT05 presents no real issues. However, if the user wants to install high performance cooling solutions or multiple high performance components, installation becomes greatly problematic. Too large CPU air coolers will not fit and the installation of liquid cooling radiators requires the removal of the 180mm Penetrator fans that are greatly responsible for the good thermal performance of the case. It is rather difficult to offer great cooling to the CPU without a significantly negative impact on the cooling of every other component. One solution could be the installation of two 120 mm liquid cooling radiators, one for the CPU and one for the GPU, but the small dimension of the Fortress FT05 will make this a rather tedious endeavor.

The greatest advantages of the SilverStone Fortress FT05 are likely to be its external design and build quality. It is a very elegant case, with the fully metallic body offering both a classy appearance and exceptional mechanical strength. While it may be far too simple for some, it is very sophisticated for those that appreciate minimalism and the feel of quality. The rubber strip that covers the optical drive slot is a small visual dissonance but it can be removed if there are no children around that could be inserting things into the empty slot.

On the other hand, the greatest disadvantage of the Fortress FT05 is not the peculiar, cramped internal design or lack of flexibility. It is the high retail price. At this point of time, the Fortress FT05 retails for $180 including shipping. It obviously is not cheap to manufacture and sell a case with almost every panel made out of aluminum, especially aluminum this thick, but this price pits the Fortress FT05 against myriads of other designs, both large and small. With the lack of versatility and very compact internal dimensions, the audience that would be best served by the Fortress FT05 is largely limited to users that will install a typical mainstream system, do not plan on frequently upgrading or fiddling with it, and favor the Fortress FT05 just for its elegant and sturdy fully metallic design. If however other aspects become selection variables, such as the versatility or the value for money, the Fortress FT05 is at a disadvantage against the competition.

Testing and results
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  • Kepe - Friday, June 5, 2015 - link

    Well, a ~$200 case is not exactly meant for the budget crowd, so having to pay $60 extra for a slot-loading DVD/Blu-ray drive (compared to a regular 5.25" drive) isn't going to be a huge issue.. But for me, the interior space is just a little too cramped. I have a Silverstone Raven 03 and it has a lot of room for all the stuff one might need. Of course it's also a lot bigger with tons of 3½" HDD bays, which I don't use at all. I hope Silverstone could find a better compromise between a huge case like the Raven RV03 and the cramped Raven RV05 and Fortress FT05.. They should also think about possibilities with water cooling, as none of these cases have proper space for (bigger than 120mm) radiators without removing the bottom fans which defeats the entire purpose of these cases. On the RV03 for example, the entire rear panel of the case is just blank with one 120mm fan opening, and nothing attached to the panel inside the case. This would be a perfect place for a 280mm radiator, although it is a bit far from the CPU socket and AIO coolers probably don't have long enough hoses to mount the rad there.
    Anyways, the bottom-to-top airflow of these cases is absolutely awesome keeping everything nice and cool and quiet. I have my fans connected to the MB instead of the fan controller, and the MB controls the fans according to CPU thermals.
  • Flunk - Friday, June 5, 2015 - link

    Or pick up a USB optical drive for $30 and never have to buy another one.
  • cjs150 - Friday, June 5, 2015 - link

    "the installation of liquid cooling radiators requires the removal of the 180mm Penetrator fans "

    There are radiators designed for 180mm fans. Might be an interesting modding exercise to fit a 2x180mm radiator into this, I think you would need to loose the HDD cage (no big loss) and probably cut the back of the case to allow radiator and barbs to stick out back, then route tubing back through case (maybe have a custom reservoir at case back as well). Looks like it could be done and with right colour scheme would be stunning.

    Now all I need to do is build my modding cave to start!
  • DanNeely - Friday, June 5, 2015 - link

    It'd need to be a compact design to fit in the case though. A standard radiator layout with only fins/channels in the path of the fan and an inch or two of overhang on both sides to connect the water channels and hoses wouldn't fit because there's almost no clearance on either side of the fans. It doesn't look like you'd have much space for overhang on the long sides either; but from the pictures I can't tell if it'd be tight enough to be a potential problem. Honestly, I think a bracket to put a 280 rad on top of the existing fans would probably be the best option.
  • DanNeely - Friday, June 5, 2015 - link

    Whoops, I intended this as a reply to Kepe (above) who wasn't thinking in terms of cutting the case up to make things fit.
  • cjs150 - Friday, June 5, 2015 - link

    DanNeely: I think you are right about the width which makes things a bit awkward, keeping the fans where they are and a custom shroud between fan and radiator is a nice idea - there is definitely the option of a stunning liquid cooled build with this case.

    I have never had a problem with pump vibration using proper isolation material solves the problem.

    Cutting up case is half the fun of modding !
  • Primum - Friday, June 5, 2015 - link

    While you'd probably not fit the EK dual 180 in (400x180x35) without some difficulty, I can't see any reason you wouldn't fit the Alphacool one in easily enough. With the fans at the bottom in push it's fairly straight forward. At a stretch a custom shroud would work, but you run the risk of making your cable management job even harder than it already is.
  • Boffinboy - Friday, June 5, 2015 - link

    This is a fairly common mod for the FT-02. I did so with mine, but used a 3x180mm and a 120mm at the top. Requires removing the built in fan filter (I replaced mine with a DEMCIflex magnet filter externally) and some cutting depending on the loop you build. The 2x180mm requires no dremeling, particularly if you get a thin version.

    My loop got infected and I ended up deciding to go back to a large air cooler for the CPU and not bothering to put my graphics cards under water. In all honesty the performance under air is fine, and just as quiet - I had a bay res and the pump vibration was noticeable. An expensive experiment that was!

    I'd be very tempted by this FT-05, but it's so costly, and I'm not sure anyone would buy my hacked-up FT-02...
  • alaricljs - Friday, June 5, 2015 - link

    I've been occasionally working on a design like this for 3-4 years now... I don't think it's very good yet but this one isn't as good as what I've come up with imho...
  • DanNeely - Friday, June 5, 2015 - link

    "Breakthrough 5.25 inch bay-free design for unprecedented power to size ratio"

    *rolls eyes* Because no one has sold a case without 5.25" bays before.

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