This message was posted on behalf of Intel Corporation
Thank you for contacting Intel Communities.
I understand you want to customize the splash screen on your Intel® Desktop Board.
As Al Hil mentioned, this can be done with the Intel® Integrator Toolkit; however, I am not sure if it will work with an older board.
You can see the readme at Intel® Integrator Toolkit - Version 6.1.6 Readme
I hope this helps.