Taichi X570 + R9 5950X only shows 2 GPU

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I have a Taichi X570 board, a Ryzen 9 5950X CPU, and 3x RTX 3080's.

2 of the GPUs appear on system info but the 3rd on (PCIE5) does not.

Are there bios setting I need to change to enable the 3rd card? I am not using the NVME sata setting (in bios it said it'd disable PCIE5).

Thanks in advance.

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Heisenberg3 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Oct 2021 Location: Earth Status: Offline Points: 50	Post Options Post Reply Quote Heisenberg3 Report Post Thanks(0) Quote Reply Topic: Taichi X570 + R9 5950X only shows 2 GPU Posted: 05 Oct 2021 at 8:07am
	I have a Taichi X570 board, a Ryzen 9 5950X CPU, and 3x RTX 3080's. 2 of the GPUs appear on system info but the 3rd on (PCIE5) does not. Are there bios setting I need to change to enable the 3rd card? I am not using the NVME sata setting (in bios it said it'd disable PCIE5). Thanks in advance.

cx5 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 15 Sep 2017 Location: Hong Kong Status: Offline Points: 2383	Post Options Post Reply Quote cx5 Report Post Thanks(0) Quote Reply Posted: 05 Oct 2021 at 9:43am
	Hi, try to find if your bios can set to x4x4x4x4 = example https://www.overclock.net/cdn-cgi/image/format=auto,onerror=redirect,width=1920,height=1920,fit=scale-down/https://www.overclock.net/attachments/210919223257-jpg.2525470/
	x370taichi@3.50gen4 AX750 Optane900P SN770 3800x PosdonZro4 BarrowPWM-17w>420x140x28 XFX SWFT319 6900XT MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz

Heisenberg3 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Oct 2021 Location: Earth Status: Offline Points: 50	Post Options Post Reply Quote Heisenberg3 Report Post Thanks(0) Quote Reply Posted: 05 Oct 2021 at 10:43am
	I checked and it can do 4x4, (1x8, 2x4), and (2x4, 1x8). I tried all settings and still only 2 GPUs are shown. Wondering if PCIE5 is just broken. because even with 1 graphics card installed only it that slot. I do not get video.

Toks Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Oct 2021 Location: Sweden Status: Offline Points: 80	Post Options Post Reply Quote Toks Report Post Thanks(1) Quote Reply Posted: 05 Oct 2021 at 10:18pm
	Is the third M.2 slot empty? Third M.2 and fifth PCIe slot share the same lanes.

Heisenberg3 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Oct 2021 Location: Earth Status: Offline Points: 50	Post Options Post Reply Quote Heisenberg3 Report Post Thanks(0) Quote Reply Posted: 05 Oct 2021 at 11:39pm
	This was it! Now down 1 drive up and up 1 GPU. Thanks.