Not really any updates since last mcodes (2019) or what you report in your previous post.
The BIF you want cant be done on the Z77 as we can achieve in X79, no news here also.
The lane split done on this MB is carried by a PLX8747 as explained here:
For SLIC, there’s several methods that you can look in detail here, along the popular Andy P’s SLIC Tool.
As this board has USB BFB feature, the recovery of a bad mod flash is always possible. Keep a current bios backup for saving SN, MAC, UUID etc… before any operations.
The NVMe mod can be achieved very easy with MMtool and following the forum guide
UBU is currently not maintained anymore, still we can add manually mcodes and new modules, making the tool still useable today. There’s no Repository.
Ill provide an UBU updated 3505 CAP, insert the NVMe
Z77WS_3505_UBU2024.rar (4.2 MB)