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ReBarUEFI: Resizable BAR for almost any UEFI system

243 points · 77 comments · nateb2022

  1. marcus9999 · · focus · HN ↗
    this fixes a real annoyance on older workstation boards where above 4g decoding is a requirement but the option isn't even in the bios menu. saw a build recently on an x79 board where it had to be exposed with a hand patched bios before anything like this or a modern gpu would work at all.
    1. jedbrooke · · focus · HN ↗
      thanks for the throwback, I remember having to hand patch the bios on my x79 system to use a gpu with 12GB vram. Fun times. My motherboard also mysteriously stopped working shortly after…
      1. bpye · · focus · HN ↗
        I patched my old Haswell system to add an NVMe DXE so I could boot from a modern SSD. I currently have a Lets Note laptop that definitely has UEFI, but pretty much pretends to be BIOS - apparently it's possible to modify to expose UEFI features but I have yet to try...
    2. Melatonic · · focus · HN ↗
      Does this help for more than just gaming ?
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