Stick with what is listed for the rev of the board you own. 1.0 F6 - if you must have the latest BIOS. Honestly F3 should be fine unless you are having a specific problem addressed by a later version (need) updated CPU microcode or memory compatibility. How many times have you clicked a link and been taken to the wrong page? Same applies here.
Rev 1.0 board LAN 1.Killer E2201 LAN chip (10/100/1000 Mbit)
Rev 1.1 board LAN 1.Killer E2400 chip (10/100/1000 Mbit) Listed for F7 BIOS > Different LAN chip, different BIOS. I wouldn't do it. Wrong rev, wrong hardware.
If your system is running fine, stay where you are.