Asus X79-DELUXE - Manual (Page 110)

3-32 Chapter 3: BIOS setup
Chapter 3
3.6.8 Network Stack
Network stack [Disable]
This item allows user to disable or enable the UEFI network stack.
Configuration options: [Disable] [Enable]
The following item appears only when you set the Network Stack to [Enabled].
Ipv4/Ipv6 PXE Support [Enabled]
Allows you to enable or disable the Ipv4/Ipv6 PXE boot option.
Configuration options: [Disabled] [Enabled]
PXE boot wait time [0]
This item allows you to key in a waiting time in pressing ESC key to abort the PXE boot. Use
the <+> or <-> keys to adjust the time (in seconds). The time ranges from 1 to 5 seconds.