Ethernet Server Adapter I350 --> Missing Tab for Jumbo Packet (Extended, german.: erweitert)

I have two identical computers, each with four quad port adapter. On the first computer I can adjust Jumbo packets but not at the other one. Both have the same driver and the same adapter (Intel Ethernet Server Adapter I350-T4). The tab (extended engl.: Erweitert) is missing. In this tab, I can set the Jumbo packets.

thanks in advance