Find instructions for enabling PCI-e bifurcation on a Z490i Unified Motherboard
Find instructions for enabling PCI-e bifurcation on a Z490i Unified Motherboard
I already employ UEFItool to pull the menu files. I received a setup.txt file and examined the relative references inside it. It seems I need to modify three default settings: One Of: CPU PCIe Lanes Configuration, VarStoreInfo (VarOffset/VarName): 0xC9F, VarStore: 0x1, QuestionId: 0xF27, Size: 1, Min: 0x0, Max 0x3, Step: 0x0 {05 91 24 30 25 30 27 0F 01 00 9F 0C 10 10 00 03 00}; One Of: Support PEG Bifurcation Card, VarStoreInfo (VarOffset/VarName): 0x67B, VarStore: 0x1, QuestionId: 0x2AC, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 4C 1F 4D 1F AC 02 01 00 7B 06 10 10 00 01 00}; One Of: CFG Lock, VarStoreInfo (VarOffset/VarName): 0x3E, VarStore: 0x11, QuestionId: 0x11B3, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 DF 01 E0 01 B3 11 11 00 3E 00 10 10 00 01 00}; I modify these values in RU, but the system boots fine. The second PCIe card on my 8x+8x bifurcation riser card isn’t appearing. Anyone have suggestions or should I consider switching brands that support it natively? setup_extr.txt