Back-connect motherboards and GPUs have been popping up more than ever lately, thanks to various manufacturers adopting DIY-APE's designs and building upon them. You can find a bunch of options in the cable-less market now, but there are still some caveats, like the individual cables for all the components being separate. That changes today — with BTF 3.0 — the latest "Back to Future" spec from DIY-APE looking to finally eliminate cables altogether.
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DIY-APE starts the video by narrating his journey in the PC landscape and how his vision of a seamless Mac Pro-style PC build led to the inception of the BTF standard. Despite the lack of experience, this novel concept has come a long way. Still, BTF 2.0, the latest iteration currently available, just flips the connectors from the front of the motherboard to the rear; you're still required to plug in several cables.
What DIY-APE wanted was a complete reinvention, with cables that are not only hidden from plain sight but also minimized to the point where they're genuinely more accessible. That's where BTF 3.0 comes in. It retains backwards compatibility with prior BTF versions but consolidates the GPU, CPU, EPS, and other connectors (not including front panel I/O) into a single 50-pin connector, using the ATX 3.0/3.1 standard from Intel.
Multiple connectors at the back for BTF 2.0 and 2.5 Image credit: DIY-APE on YouTube Single, consolidated connector in BTF 3.0 Image credit: DIY-APE on YouTube (Left) The GPU plugging into a BTF 3.0 motherboard with an extra GC-HPWR–like connector | A BTF 3.0 power supply connecting to the 50-pin interface on a BTF 3.0 board Image credit: DIY-APE on YouTube
This 50-pin interface, referred to as the "gold-finger solution," is capable of handling up to 2,145W, which DIY-APE quickly points out isn't unrealistic since many server power supplies using the CRPS standard are rated for even higher wattages. Out of the total 2,145W, the CPU and GPU get 1,680W. Here, DIY-APE proposes a universal answer to GPUs in BTF 3.0 by merging the best of both worlds that exist right now.
See, current back-connect graphics cards either use DIY-APE's own method of hiding the PCIe cables with a removable top cover, or Asus' proprietary implementation of a GC-HPWR connector on the GPU itself. BTF 3.0 motherboards will come with DIY-APE's own version of this connector (able to provide 1000W of power), but for GPUs that don't support it, a right-angle adapter will be provided to bridge the PCIe plugs on the card with the connector on the board.
(Image credit: DIY-APE on YouTube)
The new gold finger solution will connect directly to a power supply with a female connector, but it will also be compatible with standard ATX 3.0/3.1 models using an adapter to convert conventional plugs into a single 50-pin connector. Front panel headers will be merged into a more compact, simplified layout, but won't be integrated into the 50-pin connector to maintain wide compatibility with the majority of cases out there.
(Image credit: DIY-APE on YouTube)
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