Be curious to see a set up of the working product when you have one.
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could the connectivity issues be the board not able to power up to 75w? lower wattages dont trigger the issue but then an uknown limit triggers a power loss or something?
That’s a good idea however i do not believe that is the issue. I have load tested the DC-DC converters with an electronic load i have and they are very stable at 3.3v and 12v.
I even tested the board with an ATX power supply powering it instead of my converters and the issue still persists.
I have ordered the new board and they should be here sometime late next week
as far as i remember to enable the pcie lanes you used the “bios” of the other person’s oculink adapter that essentially tells the motherboard that its a “7700s”, could it maybe be that when it detects another gpu connected to the supposedly 7700s it gets confused and gives those issues due to mismatching gpus? but if it were the case it would give issues with the oculink adapter too
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I recompiled my own bios as the OCULINK one disables any power output from the interposer. The new boards should be here today an the digikey order will be hear early next week