If you want to manage Dell bios settings with SCCM and OSD, then you can follow this guide. I will show you how to configure Dell bios. This post contains info from this blog post and this blog post from Mike Terrill.
1. Update the bios to the newest version. (See this blog post if you want to do that with SCCM and OSD)
2. Download “Dell Command Configure” and install it.