Thanks for joining the Desktop Board community.
I understand after performing BIOS update through exe file, it does not access BIOS.
Please try testing the board with BIOS recovery method. You may need to run one version down.
Instructions for BIOS recovery available below:
File name: PG0147.BIO
After running BIOS recovery 0147, you can download and install version 0148
File name: PG0148.BIO