MacVidCards alternative, or how to DIY EFI for RX580 Reference?

[Guest DevoAtari]

Hey,

 

I've dealt with Dave from MacVidCards a bunch of times, first with an HD6870, then a GTX760, then a GTX970... Every one of those times was fantastic, albeit, he was getting harder and harder to get a hold of, over time. Now, I sent an email 8 months ago, which he still seemed great, quickly replaying that I could definitely drop off my card on a weekend... Then... Nothing... Absolutely nothing. Emailed about 10 more times, since then, and I've received no response. Looking around...

 

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Source: MacRumors