Gigabyte GA-6KIEH-RH User Manual page 41

Enabled Enable onboard LAN1 PXE option ROM. (Default setting)
Disabled Disable onboard LAN1 PXE option ROM.
LAN2 Controller
Enabled Enable onboard LAN2 controller function. (Default setting)
Disabled Disable onboard LAN2 controller function.
This item will show up only for GA-6KIEH-RH.
LAN2 PXE OPROM
Enabled Enable onboard LAN2 PXE option ROM. (Default setting)
Disabled Disable onboard LAN2 PXE option ROM.
This item will show up only for GA-6KIEH-RH.
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BIOS Setup