Has anyone been able to try out bifurcation on these boards? Does this quote from the Intel X58 spec sheet mean that it would need to be something built into a BIOS so it can be configured or would bifurcation just technically work if I use something like a x16 NVMe adapter card?
The IOH supports port bifurcation using PEWIDTH[5:0] hardware straps. The IOH supports the following configuration modes:
• The width of all links are exactly specified by the straps
• The width of all links are programmed by the BIOS using the PCIE_PRTx_BIF_CTRL register (wait on BIOS mode