This PCI Express x1 on x16 powered riser card(to "climb") with additional 6-pin PCIe power connector is the ideal accessory for Bitcoin mining systems and of course - considering the bandwidth available here - as any other riser card for other Systems and applications can be used, such as for the mining of Altcoin, Ethereum or Ether or Zcash as well as for Distributed Computing, Rendering and Boinc. Bitcoin is a virtual payment method launched in 2009 that is created and managed by all participating clients of the decentralized Bitcoin network. Like many other proof-of-work cryptocurrencies, bitcoins are generated by computer-solving cryptographic computing tasks that consume a lot of energy, called "mining."
Meanwhile, GPU-based mining for bitcoins is no longer worthwhile due to the immensely increased demands. As a result, new cryptocurrencies, so-called Altcoins, such as Ethereum, are constantly being launched, which continue to be profitably mined with GPUs. In principle, normal computer processors (CPUs) are capable of scrapping new Altcoins, but they can only calculate a few (kilo) hashes per second and are therefore not suitable for mining in relation to the time and energy used for this purpose. In terms of efficiency, they are significantly beaten by graphics processors (GPUs), especially graphics chips of the Radeon series from AMD have proven to be particularly powerful. As so-called mining rigs PC systems are referred to from commercially available hardware components whose sole task isCalculate crypto currencies using multiple graphics cards .
In order to counteract the resulting high heat generation and to operate as many graphics cards as possible in parallel, these GPU-Miner systems usually use very open housings (comparable to benchtables) or partly adventurous, self-built housing creations. As with AMD CrossFire or NVIDIA SLI gaming PCs, the system-based mainboards usually can not use all the PCI Express slots, as powerful graphics cards usually have wide dual-fan or even triple-fan coolers and so the space required for other GPUs is missing or, in the case of many mining PCs, all PCIe slots must be routed based on the respective graphics card constellation.
This is where the practical powered riser card comes in, allowing PCI Express slots with x1, x4, x8 or x16 connectivity to be mounted on the motherboard, allowing one additional PCI Express x16 slot to be strategically located in or out of the housing. This x16 slot is electrically connected to a single PCI Express lane whose bandwidth matches the PCIe generation of the output slot. Since bitcoin mining only requires calculations to be performed by the GPU and, unlike video games, no textures or shader data has to be transported to graphics memory, the bandwidth available here is completely sufficient for this application.
For data transfer, the riser card is a USB 3.0 cable, which, with a length of approx. 800 millimeters, allows a great deal of flexibility when laying the PCIe slot. In contrast to the IDE ribbon cables frequently used with conventional riser cards, the module can be laid better and there are further advantages in the higher stability and less obstruction of the air flow. The board is powered by a 6-pin PCI Express connectordirectly from the power supply, which is capable of delivering up to 75 watts of electrical power, usually delivered from the motherboard's PCIe slot. Compared to Molex connectors and adapters, this type of power supply ensures a lower contact resistance and is therefore particularly stable and extra reliable. The rest of the power required by the graphics card comes as usual from other directly connected to the GPU PCIe connectors. With this powered riser, it is thus possible to operate up to 6 graphics cards on one mainboard without overloading its power supply or the cables of the power supply.