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The information that may help is stated in section 42.2, on page 279 of the Intel(R) Pentium(R) Processor N3500 - Series, J2850, J2900, and Intel(R) Celeron(R) Processor `Series, N2900, N2800, J1800, J1900, J1750 BIOS Writers Guide - Volume 2 of 2 document # 514148.
This document must be reviewed with the assistance of your BIOS developer, it is accessible to you using the Resource & Design Center (RDC) privileged account.
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We hope that this information may help you.