Ivy bridge to sandy bridge motherboard (Acer 7750G)

Hello. I leave no hope to put ivy bridge on this board (Compal LA-6911p). Chipset HM65.

What is done:

1) Added microcode 306A9 at the end of the list (MC extractor displays this)
2) Version ME 7.0.4.1197 as on the well-known desktop motherboard gigabyte with ivy bridge support
3) vBios costs from Ivy bridge / sandy bridge but it is not used (just a discrete video)

After switching on, it passes several POST codes and stops at code 57 (DXE_FIRST_SMI DXE 57 SMI test). No image.

On this firmware 2410M (sandy) is working fine. The processor for the test is using Celeron 1005M.

Any ideas where to go next? Ready for any changes until the sealing of another hub.

I can use the Uefi tool, H2OEZE, phoenixtools, HxD and make any measurements on the board.

I am writing through Google translate. I apologize for that.

I examined the files in the Acer V3-571g and found that on both laptops there are files from both AMD and Nvidia graphics. According to the schemes, laptops are almost identical (like a multicotroller). Can you manage to install Hm77 and install BIOS from Acer V3-571G by changing graphics files from Acer 7750G?