In another guide here, it is recommended to run the BIOS file through the UBU tool (store/rename option on exit) which should remove a section which causes the check to fail (as far as I understood). I used UBU v1.79.17 with and without updates of Mar23 but it dit not change my BIOS dump of v40, the checksum of input and output files are identical. Here is my output on my v40 dump and findings of the UBU tool:
Scanning BIOS file bios_M46KT40A_orig.rom.
Please wait...
Manufacturer - LENOVO
Model - 32E1
BIOS release - 5.17 05/19/2023
BIOS platform - AMI Aptio 5
[EFI Drivers - Find and Extract]
AMD RAIDXpert2 GUID C74F06D2-ED92-489B-879C-C0E428A22167
AMD GOP SubGUID 12FA6BCD-E5C0-4E61-8BC6-3876EC6C2083
AMI NVMe GUID 634E8DB5-C432-43BE-A653-9CA2922CC458
Realtek Undi GUID E88DB748-A947-46CF-AB6F-5C99B6C6C4B8
[OROM - Find and Extract]
VBIOS in SubGUID 12BF5331-4DF7-4CA8-9C7F-155EF4A67A11
VBIOS in SubGUID 12BF5331-4DF7-4CA8-9C7F-155EF4A67985
OROM in GUID A0327FE0-1FDA-4E5B-905D-B510C45A61D1
OROM in GUID 365C62BA-05EF-4B2E-A7F7-92C1781AF4F9
Drücken Sie eine beliebige Taste . . .
Main Menu
[Current version in BIOS file]
1 - Disk Controller
EFI AMD RAIDXpert2-Fxx - 9.3.0-00221
EFI NVMe Driver present
2 - Video OnBoard
EFI AMD GOP Driver - 2.15.0.17.10
OROM VBIOS Cezanne - 017.010.000.028.000000
OROM VBIOS Renoir - 017.010.000.028.000000
3 - Network
EFI Realtek UNDI Driver - 2.055
OROM Realtek Boot Agent GE - 1.37
OROM Realtek Boot Agent GE - 2.66
4 - Other SATA Controller
5 - CPU MicroCode
View/Extract/Search/Replace
S - AMI Setup IFR Extractor
O - Option ROM in other GUIDs
0 - Exit
RS - Re-Scanning
A - About
Choice: