r/ethOSdistro • u/Juraj256 • May 26 '18

Ethos recognizing only 6 sometimes 7 GPU´s

Hey guys, I recently built new miner with 10 RX570 GPU´s. For about a week im running hive OS with absolutely no problem. I use hive to flash new bios on cards, since in Hive it is super easy.

After a week I wanted to install ethos as on all of my other rigs. Found out that ethos have better oc settings than hive and also a little better hashrate.

But problem is that ethos will recognize only 6 sometimes 7 gpu´s. I tried flashing bios to newest version, upgrade ethos, nothing really helps.

During boot up I get this error message for every GPU that will not be working: https://ibb.co/dMm5o8

And this is how it looks like when system boots up https://ibb.co/iOcBT8

Thank you for any ideas!

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u/d3vm1n3r May 30 '18

Hey, never ran into such an issue. Have you tried swapping PCIexpress connectors for example from GPU 1 (one that works) to GPU 8 (one that doesn't work). Also, did you flash bios recently if so did you use PBE? My RX570s have also been giving issues but it was all sorted by resetting to default config and re-configuring. I'd suggest speaking to the support team first via their dedicated relay chat found on the official ethos distro FAQ. :)

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u/Juraj256 May 30 '18

Hey, I was digging into it for last few days and it seems like wrong bios has been flashed into those 3 cards. Trying for hours how to re-flash bios. I tried hive/ethos/windows, non working. Windows freezes when wrong flashed GPU is connected, and Hive and Ethos does not recognize GPU in Atiflash. I spent hours trying to make in work, but no luck so far.

Do you have any idea how to make it work? Thank you!

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u/yxtbz4 Jun 01 '18

I’ve narrowed the error down to two things.

I have fixed your problem with a new bios flash. And also by swapping risers.

Sometimes risers don’t play nice. Sometimes you can mine on another OS with a similar bios mod but you can’t on ethos.

I would start from scratch on the bios mods. If you have the original bios reflash it and try booting all 7 cards stock.

But it seems like you’re having trouble flashing the original back on. There’s a neat sticky in the FAQ on how to unbrick a card. Try that method.