X570 Taichi 3 GPU issue

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   Hi There, 

I have bought a new B650i Lightning WiFi board for my desktop and my X570 Taichi board moved to my "server". It has 128GB RAM and I was using 3x5090s (Pcie 2x PCIE4x8 1x PCIE4x4) and it was working perfectly fine. I've bought a RTX6000 and replaced one 5090 with it but motherboard wont boot afterwards. (it will boot with 1x 5090 and 1x RTX6000). I'm on newest bios from a few weeks ago. 

I think there is an issue assigning ~160GB VRAM which leads to D7 (or 07) code on DrDebug display. I have waited for hours but its just stuck there. (also I've tried a lot different PCIE Bios settings but nothing worked...

Any chance you can help me£ 

Thank you very much

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Goetterfunke Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 5 hours 8 minutes ago Status: Offline Points: 15	Post Options Post Reply Quote Goetterfunke Report Post Thanks(0) Quote Reply Topic: X570 Taichi 3 GPU issue Posted: 4 hours 54 minutes ago at 1:37am
	Hi There, I have bought a new B650i Lightning WiFi board for my desktop and my X570 Taichi board moved to my "server". It has 128GB RAM and I was using 3x5090s (Pcie 2x PCIE4x8 1x PCIE4x4) and it was working perfectly fine. I've bought a RTX6000 and replaced one 5090 with it but motherboard wont boot afterwards. (it will boot with 1x 5090 and 1x RTX6000). I'm on newest bios from a few weeks ago. I think there is an issue assigning ~160GB VRAM which leads to D7 (or 07) code on DrDebug display. I have waited for hours but its just stuck there. (also I've tried a lot different PCIE Bios settings but nothing worked... Any chance you can help me£ Thank you very much

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 43273	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 2 hours 11 minutes ago at 4:20am
	Hi Goetterfunke, you will likely need help for ASRock's Tech Support staff with this, more specifically, their BIOS department. I would open a ticket with them and outline your issue: https://tw.asrock.com/events/tsd.asp This kind of issue often requires a BIOS level tweak or fix. It seems you have already done what I would have suggested as troubleshooting. Good luck and let me know how it goes