We have the spare motherboard for a del C6220 II. It has bios version 3.1.10, but the latest is 2.5.3 on the official cite. All other mb in our server have 2.5.3. We tried downgrade 3.1.10 to 2.5.3. Both ethernet ports are down now. They don't have any mac addresses in the bios. As we understood it's the special mb version, and offiсial bioses not suitable to it. Where we can download the bios for our board? Thanks.
