ReBarUEFI: Resizable BAR for almost any UEFI system

Discussion (13 Comments)Read Original on HackerNews

marcus9999•about 1 hour ago

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.

jedbrooke•34 minutes ago

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…

bigwheels•about 2 hours ago

What does this do? I perused the README but I'm still clueless on what the purpose and use-case is for ReBAR.

wmf•about 1 hour ago

It allows the CPU to access all GPU VRAM. This improves gaming performance, especially for AMD GPUs.

mathisfun123•about 1 hour ago

> what the purpose and use-case is for ReBAR

Literally the second sentence in the repo:

> This provides performance benefits and is even required for Intel Arc GPUs to function optimally.

ReBarUEFI: Resizable BAR for almost any UEFI system

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Discussion (13 Comments)Read Original on HackerNews