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5.2.4
Enabling Option ROM scan
In order to configure an expansion card that has been installed or replaced, the
Option ROM of the card has to be enabled in the BIOS. The firmware of the card
is called by the BIOS upon reboot and can be entered and configured.
Option ROM can be enabled permanently (e.g. in case of a boot controller that
may require frequent setup) or temporarily for one-time configuration. When
permanently enabling a controllers's Option ROM, keep in mind that only two
Option ROMs can be activated in the BIOS at a time.
Ê Enter the BIOS.
Ê From the Advanced menu select Option ROM Configuration.
Ê Identify the desired PCI slot and set its Launch Slot # OpROM setting to
Enabled.
Ê Save your changes and exit the BIOS.
I
Up to two Option ROMs can be activated in the BIOS at a time.
For more information on how to access the BIOS and modify settings,
see the corresponding BIOS Setup Utility reference manual.
When the enabled expansion card is initialized during the POST phase of the
boot sequence, a key combination is displayed temporarily to enter the firmware
of the expansion card.
Ê Press the displayed key combination.
Ê Modify the expansion card firmware options as desired.
Ê Save your changes and exit the firmware.
I
The option ROM of the expansion card can now be disabled in the BIOS.
Exception: If the expansion card controls a permanent boot device, the
Option ROM of the expansion card has to remain enabled.
TX2550 M4
Upgrade and Maintenance Manual
Basic software procedures
115
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