I am building a rig with 5 3060m on a h61 x79 btc motherboard, I can boot on 4 gpu but not on 5 (no bios logo).
All graphics cards and all pcie ports work, I tested.
4G Decode is enabled
intel virtualization is disabled
audio Azalia is disabled
For the moment I have configured the Pcie bifurcation control like this but I’m not sure if it’s correct:
iou1 pcie port 4x4
port 1A link speed Gen2
port 1B link speed Gen2
iou2 pcie port 8x4x4
port 2A link speed Gen2
port 2B link speed Gen2
port 2C link speed Gen2
ior3 pcie port 8x4x4
port 3A link speed Gen2
port 3B link speed Gen2
port 3C link speed Gen2
If I disable “load CSM” I am forced to reset the bios by removing the bios battery because I cannot boot anymore.
If you have any ideas or tips, please, I’m interested.
yes there are 3 in and 3 out, I can’t test now because I need a spliter (in a few days I will be able to). But normally you just have to connect the 3 “power in” ports like this: https://youtu.be/wqO2nhJIY9k?t=1017
I know, but if yours isn’t working with only 3 try plugging them all in. I run all mine with all connected and haven’t had any problems. My 5x3060 rig has been running for 14 months now on that board
I tried with 2 psu’s all 6 power pcie’s connected to the motherboard and still the same problem.
but i tested with an old gpu instead of a 3060m and it works.
I did this test again with only 3 power pcie’s connected to the motherboard and it works too.
So 4 3060m + 1 hd 6970 works but 5 3060m doesn’t work
I tested all the 3060m one by one and all works.
I think the problem comes from the bios misconfigured but I have no idea, maybe pcie bifurcation control misconfigured or the “load CSM” that I can’t disable.
Ok that’s nice of you,
Maybe if I move the cards to riser it could help solve the problem because riser are powered separately. I’ll try in a few days when I get them.