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x370 Taichi Ryzen 3900x wont boot SLI |
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Triton 
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Joined: 04 Apr 2020 Status: Offline Points: 4 |
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 Topic: x370 Taichi Ryzen 3900x wont boot SLIPosted: 04 Apr 2020 at 6:28am |
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Hi
I have upgraded from 1600x to 3900x and I had sli with my old build. Now after several hours I managed to boot with 3900x normally with the latest BIOS 6.20 but only with 1 card. No boot when 2 cards inserted. No special indications on Dr Debug coolers working fine and then going idle, system flowing but no signal and no connection of the keyboard. I use 1080 Ti and another one with higher frequency. Can you help please? |
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Xaltar
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Joined: 16 May 2015 Location: Europe Status: Offline Points: 22823 |
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Posted: 04 Apr 2020 at 7:29am |
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I am not sure but it could be something to do with the BIOS trying to enable
PCIe 4.0 on your board and failing when both cards are inserted. Check through your BIOS options for PCIe generation settings, if you find any set them to gen 3. |
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Triton
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Joined: 04 Apr 2020 Status: Offline Points: 4 |
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Posted: 05 Apr 2020 at 10:49pm |
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Thank you for the help. Solved by removing drivers and switching cards pci ports.
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