So at first you have to search for the guidelines that match for you product. For a computer case that has no hardware inside the guidelines are: As I know many of the products that sell by startup over crowdfunding aren’t registered and have real CE declaration with test report, because they think we aren’t located in the EU so what could happen or they don't know these laws. But this could be a problem and destroy your company faster as you can look if a person will be hurt by your product, a bigger company like Silverstone, Lian Li see you as a competitor or a lawyer wan’t to earn money by serve a notice to you. I can only recommand deal with the laws of the countries where you like to export, because every succesfull company do this. Now you must search form the DIN/EN norms that tell you how to test your product so that it fulfill the guidelines. So for a case that should fulfill 2014/35/EU and 2011/65/EU the norms are:

My Dan A4 H2O can still handle high end hardware (not the i9 without an undervolt/power limits :D ), and a big GPU is still going to perform better here than a small one. The sides and top panels are perforated, there's holes everywhere...but there's literally a single RTX 4090 SKU that will fit (the ventus). The FE are a no go because the flow through design could only work with a 4-slots design layout. (There's an offset system for the Two slot FE)If there is one small form factor (SFF) case that has defined the growth in popularity of the SFF movement, it has to be the Dancase A4-SFX. This mini-ITX case has shown it is possible to build highly capable, enthusiast-grade machines that not only are super compact, but also look drop-dead gorgeous. Rightly so, it has been featured as one of our best SFF cases to build with in 2019. You should be worried about the heat dumped into the case if you're running a tiny cramped mITX shoebox with restricted case airflow. That heat gets absorbed by every other component in your PC and is directly related to how noisy your case fans will need to be. mITX builds are most often vanity builds that sit right up on the desk next to the user, so noise levels are even more critical than in an ATX desktop where it's further from the user and more of the noise is bouncing around and being absorbed under the desk. The A4-SFX case is a one-man project with the goal of creating the smallest case possible while still using high-end standardized components, such as Core i7 processors and powerful full-length GPUs such as the GeForce GTX 980 Ti. All images and descriptions are for illustrative purposes only. Visual representation of the products may not be perfectly accurate. All specifications are subject to change without notice. Although we endeavor to present the most precise and comprehensive information at the time of publication, a small number of items may contain typography or photography errors Inside, on the right side, a Mini-ITX format motherboard can be accommodated, on which a CPU with a maximum48 mm high processor cooler can be installed. Flat top-down blower coolers are completely sufficient for cooling due to the ever decreasing TDP of processors. A riser adapter redirects the PCI-Express x16 slot of the motherboard to the left side of the case, where up to 295mm long graphics cards can be installed. The riser adapter is from 3M.

You shouldn't be worried about your silicon temperature because that's what the boost algorithm and silicon health agent are for; Unless you have an excess of cooling, they will get the maximum performance out of the available cooling while keeping the roasty-toasty silicon at a safe temperature for its long-term health.They folded the rinser cable like so that you cannot fit a 14mm case fan under it. According to the specs the case even holds a 15mm fan. Folding a super expensive rinser cable is no fun.

The clever cooling design of the case is similarly spartan in outlook. A separate fan is not needed as the case takes advantage of the integrated cooling of the installed hardware, thus saving valuable space here as well. To ensure that all components are exposed to fresh air the two side panels and the top of the A4-SFX V4.1 have been provided with round air holes over a large surface area along with elongated holes on the bottom to ensure a continuous supply of fresh air. In a reversed setup, where the AIO moves to the GPU side next to a conventional SFX form factor power supply. This reduces the length of the graphics card to 173 mm and the height of the AIO including fan to 42mm. Those who can do without two SSDs have room for 92mm AIOs on the ground, such as the 545LC from Asetek. To effectively protect all vents from dust, DEMCiflex provides optional DAN Cases A4-SFX Dust Filters. We believe SFF computers are the future for PC builders – whether you like it or not – and expect to see more and more PC builders turn to the mini-ITX form factor from ATX and look to build smaller, compact systems with equal performance to ATX systems. The new V3 edition features quality Lian-Li components including a new PCIE 3.0 riser module,optional AIO mount for CPU water-cooling support with both a 92mm and 120mm radiator configuration plus mounting points for theHDPLEX 400W HiFi DC-ATX. In spite of the diminutive size of the case, there is sufficient room to install a full size graphics card. The graphics card is installed parallel behind the mini-ITX motherboard in a separate chamber and this means that virtually every single square centimetre of space inside the DAN Cases A4-SFX is intelligently used.Without trying to patronise, silicon temperature isn't related to how much heat is dumped into your case by the CPU, it's the power draw in Watts. A 15W CPU can run at 95C and a a 230W CPU can run at 60C and yet the hotter 15W chip will result in far, far lower case temperatures because it's only the Watts that are transferred out of the heatsink. If anything, a CPU operating at much higher temperatures is able to extract greater efficiency from the cooler because the larger temperature delta between the air and the heatsink results in a faster energy transfer from hot metal to cool air. In other words, more energy is extracted by the cooler for the same amount of fan RPM and noise. The DAN A4-SFX V3has an extremely compact chassis, measuring a mere 112 x 205 x 327 mm with a volume of just 7.2 litres, that's roughly the size of a shoe box. Through excellent engineering the interior space has been perfectly laid out so that essential hardware only takes up the minimum space required. Other than that, I agree - configurable TDP is probably the greatest invention in modern CPU technology. AusWolfThat's the thing. The air dumped into your case should move, otherwise, it's just gonna be recycled by your CPU cooler, which affects silicon temperature as well. Sure, it won't kill itself, but throttling can be an issue.Yes and no. Define "throttling" :D