Dell PowerEdge C6145 - Manual (Page 65)

Using the System Setup Program | 65
Option Description
BIOS EHCI Hand-Off
(Enabled default) This is a workaround for operating systems without EHCI
hand-off support. The EHCI ownership change should
claim by EHCI driver.
Legacy USB1.1 HC
Support
(Enabled default) Select these items to enable or disable the USB 1.1 HC.
PCI Configuration
Scroll to this item and press Enter to view the following screen:
Option Description
NIC Function Support
(PXE default) NIC for PXE or iSCSI Option ROM support.
NIC1 Option ROM Disables or enables Option ROM. The “NIC1 Option