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This question has come up a number of times and a few HP motherboards do support it. I suspect the g5 does not.
I looked here at your simulate bios (I do not have your system) and it appears you can set the generation for the slot to be 1,2, 3 or auto. I do not think lowering the generation will help. I did find that necessary on mining systems to get all graphics boards to be recognized.
I suspect you will have to obtain a PCIe adapter that has built in firmware to make up for missing bifurcation something like the following https://www.amazon.com/Dual-Adapter-RIITOP-Support-22110/dp/B08P57G1JW
I have no idea if it works on your system.
Interesting article here
The z640 support bifurcation FWIW
The latest bios for your system, Dec 2021, did not mention adding bifurcation
Thank you for using HP products and posting to the community.
I am a community volunteer and do not work for HP. If you find
this post useful click the Yes button. If I helped solve your
problem please mark this as a solution so others can find it
HP Recommended
This question has come up a number of times and a few HP motherboards do support it. I suspect the g5 does not.
I looked here at your simulate bios (I do not have your system) and it appears you can set the generation for the slot to be 1,2, 3 or auto. I do not think lowering the generation will help. I did find that necessary on mining systems to get all graphics boards to be recognized.
I suspect you will have to obtain a PCIe adapter that has built in firmware to make up for missing bifurcation something like the following https://www.amazon.com/Dual-Adapter-RIITOP-Support-22110/dp/B08P57G1JW
I have no idea if it works on your system.
Interesting article here
The z640 support bifurcation FWIW
The latest bios for your system, Dec 2021, did not mention adding bifurcation
Thank you for using HP products and posting to the community.
I am a community volunteer and do not work for HP. If you find
this post useful click the Yes button. If I helped solve your
problem please mark this as a solution so others can find it
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