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Sometimes the board just works with slow speed (like 35mb/s), sometimes it doesnt work it all. Adjusting BIOS settings can help, like PCI gen adjusting. On some "bad" motherboards its possible to have USB-Input problems like stuttering mouse when DMA is reading, or even stuttering sound. AMD CPUs are not a "no go" at all, but sometimes its try and error.

How does DMA works? The DMA controller can produce memory addresses and launch memory read or write cycles. It covers multiple hardware registers that can be read and written by the CPU. Basically a DMA PCI Board is reading the memory from the target PC on the hardware level and sends the informations to a 2nd PC through USB where it will be used for different reasons.

It was always unique firmwares like different devices, vendors, shifted capabilities etc. The problem was, vivado left some signature traces with settings which was always the same when they checked the config space. Settings/Capabilities which are present in correct devices so we thought its good to add them for the DMA firmware also.

Thats handled by the firmware and its about mimicking normal hardware operations like Luks question.

Hey Folks, my name is Brian and I am from the development and organization team at enigma-x1.com. If you have any questions about our DMA boards, Kmboxes, HDMI fuser, firmware or anything else related, please feel free to ask them here. What is a DMA card? Direct Memory Access (DMA) is a means by which devices can exchange data with memory or with each other without requiring intervention by the processor. Standard DMA allows a device to exchange data with memory, but not with another device. Bus Mastering DMA allows two devices to communicate directly with each other. What is a Kmbox for? The core of a Kmbox is to control keyboard and mouse data at will. (aim/keys) What is an emulated firmware? An emulated firmware is a firmware for your DMA board which supports driver installation from the copied device and reacts like a real device. The config space is copied as close as possible. (bypass) What is a HDMI/DP Fuser for? A fuser combines 2 display signals into one display or you can switch between both signals. (visuals) Shop now