![]() ![]() The power is separated and provided via Molex or SATA power cable. The data is transfered via USB3 cable (connected to the PCIe x1 slot, not to USB). First of all there is Bitcoin mining with multiple GPU for which PCIe x1 to x16 risers are used. #Graphic card benchmark pci express PcIt's actually possible to use a small PC case and keep the GPU outside of the case and power it by external power supply. PCIe x1 has 4 Gbit/s, while x16 offers 8 GB/s of bandwidth (PCIe 2.0). Also it will use a lot of power which means heat and cooling noise. PCIe x1 won't allow you to get all of that expensive performance. They can be flat and quite wide (Casetronic C350, C138 and many other, MHero-L-R) or cube-alike like Morex 6610.Īlso the graphic card we want to use shouldn't be super-powerful. Second type of cases are those designed for using risers. They often have a PCIe slot for connecting something directly to the motherboard. First type of cases are cubes (SilverStone SG06, Cooler Master Elite 120/130 etc.) that are lower than typical PC Tower case, but are also wider. Such power supply will need a bigger case designed to hold it. They can be quiet but they aren't small (and not very cheap). Such power is available only from ATX power supplies. If the PC takes 40-50W and GPU also then we need almost double that - 180-200W or more. First of all we will need stronger PSU to power the GPU. Adding external GPU may make it bigger, and more noisy. A nice low power, quiet and compact solution. Integrated graphics will handle most multimedia and some gaming, entertainment. New low power AMD Semprons and Athlons or even old E-350 often have x16 connector but working as a x4. Intel Bay Trail-D or Celerons like 1007U have PCIe x1 on the motherboard. If not we have to use a riser cable to connect GPU with the motherboard. If the motherboard has a x16 connector or open smaller one (no plastic blocking the end of the PCIe connector) then we can connect a x16 GPU directly to the motherboard. Using GPU with PCIe x1 and a low power board is challenging. Really good GPU will require strong power supply so a low power small case won't be able to handle them anyways. On the other side sometime it's just easier to get 1155/1150 or FM2/AM3 motherboard with PCIe x16 and a not-so-expensive Pentium or AMD APU. 10-35W CPU won't be a gaming champion but still maybe with an external mid-range GPU it will allow plaing moderately demanding games? Using classical PC with PCIe x16 won't be much more expensive, but still maybe we want something small and quiet?Īside of gaming we may want to use the GPU computing power in our home server, for some OpenCL, CUDA using code, or maybe we want to do some CAD/engineering work with a basic Nvidia Quadro GPU? Or maybe we just want to mine some Bitcoins from time to time? There can be few reasons, for example support for multiple displays (digital signage, displaying monitoring data), or maybe for supporting high resolution display. Will Celeron J1900 be able to run games faster and what will be the difference between x1 and x16 on a classical motherboard? Why would you need an external graphics card in a small mini ITX? In this article I'll test and compare three basic and cheap graphics cards I got from local bidding site quite cheap. ![]() ![]() We can connect a USB3 or Firewire 800 PCIe controller to it, but can we use an external graphics card to improve the gaming performance of such low power quiet PCs? Can PCIe x1 2.0 can provide enough bandwidth for the GPU to perform at a good or acceptable level? Or maybe can it give some extra features like CUDA cores or multiple display support that can be used to some specific tasks? Most of motherboards offer PCIe connect, but as a limited to x4 (AMD) or x1 (Intel) version. Low power Bay Trail, Celeron or AMD APU Athlons, Semprons are storming the market allowing users to create quiet or even fanless PCs for multimedia or daily home use. After building and testing a fanless PC with quad core Celeron J1900 it's time for some experiments - using PCIe x1 slot available on the Asrock motherboard. ![]()
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