Possible values of an option:
The option description:
At setting for this option of value [Enabled] during passage of procedure POST check of a state of the network cable connected to the integrated network adapter will be fulfilled. If you do not use the integrated network interface card, or do not test necessity for this test, install [Disabled].
Basically, the regular check of a network infrastructure never will be superfluous. Other question that the test of a state of a network cable increases load time.
Other options identical to destination: