Option
Description
Empty Slot Unhide
Enables or disables the root ports of all the empty slots that are accessible to the BIOS and OS. This option is set
to
Disabled
by default.
Memory Mapped
I/O above 4 GB
Enables or disables the support for the PCIe devices that need large amounts of memory. Enable this option only
for 64-bit operating systems. This option is set to
Enabled
by default.
Memory Mapped
I/O Base
When set to
12 TB
, the system maps the MMIO base to 12 TB. Enable this option for an OS that requires 44 bit
PCIe addressing. When set to
512 GB
, the system maps the MMIO base to 512 GB, and reduces the maximum
support for memory to less than 512 GB. Enable this option only for the 4 GPU DGMA issue. This option is set to
56 TB
by default.
Slot Disablement
Enables or disables the available PCIe slots on your system. The slot disablement feature controls the
configuration of the PCIe cards installed in the specified slot. Slots must be disabled only when the installed
peripheral card prevents booting into the operating system or causes delays in system startup. If the slot is
disabled, both the Option ROM and UEFI drivers are disabled. Only slots that are present on the system are
available for control.
Table 44. Slot Disablement
Option
Description
Slot 1
Enables or disables the PCIe slot 1. This option is set
to
Enabled
by default.
Slot 3
Enables or disables or only the boot driver is disabled
for the PCIe slot 3. This option is set to
Enabled
by
default.
Slot 4
Enables or disables or only the boot driver is disabled
for the PCIe slot 4. This option is set to
Enabled
by
default.
Slot 5
Enables or disables or only the boot driver is disabled
for the PCIe slot 5. This option is set to
Enabled
by
default.
Slot 6
Enables or disables or only the boot driver is disabled
for the PCIe slot 6. This option is set to
Enabled
by
default.
Slot 7
Enables or disables or only the boot driver is disabled
for the PCIe slot 7. This option is set to
Enabled
by
default.
Slot 8
Enables or disables or only the boot driver is disabled
for the PCIe slot 8. This option is set to
Enabled
by
default.
Table 45. Slot Disablement
Option
Description
Slot 1
Enables or disables the PCIe slot 1. This option is set
to
Enabled
by default.
Table 46. Slot Disablement
Option
Description
Slot 1
Enables or disables the PCIe slot 1. This option is set
to
Enabled
by default.
Pre-operating system management applications
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