(10-10-2021, 07:34 AM)Maxinator500 Wrote: Aren't bioses for MB40IA1 and MB50IA1 the same?
mb50_dns_ver1[1].03.00.dn
From the release notes, it appears the version number for this update is inherited from the latest update for the MB40IA1. Further, they have the same chipset according to driverscape.com. I would say that it is likely the case that they are the compatible based on these details.
Comparing the backup from Post #3 to the BIOS update, here's what I found:
(1) Almost all of the named extracted modules (ie: BIOSCODXX.ROM, TEMPLAT.ROM, etc.) are identical upon hex comparison.
(2) The extracted .ff and .PEI files are the ones that differ. But they tend to differ by just a few bytes, with almost all of the bytes being identical.
The official BIOS update contains platform data so that the image can be flashed by phlash16. The backup does not (as is expected). A comparison of platform data between model revisions would give us a more complete picture of compatibility, but these are most likely compatible (especially since the BIOS menus as defined in TEMPLAT and STRINGS are identical).
I will modify the image that you posted. Thanks!
ETA is the next day or two.
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1.) Donate to one of various organizations offering medical, military, and psychological support to those impacted: Support Organizations
2.) Combat misinformation on social media.
Also, please feel free to PM me if I have not replied again about your BIOS mod request after 5 days.