Dell EMC PowerEdge T440 Installation And Service Manual page 52

Option Description
Memory Mapped When set to 12 TB, the system maps the MMIO base to 12 TB. Enable this option for an OS that requires 44 bit
I/O Base 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 32. Slot Disablement
Option
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot Bifurcation Allows Platform Default Bifurcation, Auto Discovery of Bifurcation and Manual Bifurcation Control. The default
is set to Platform Default Bifurcation. The slot bifurcation field is accessible when set to Manual Bifurcation
Control and is disabled when set to Platform Default Bifurcation or Auto Discovery of Bifurcation.
Table 33. Slot Bifurcation
Option
Auto Discovery Bifurcation Settings
Slot 1 Bifurcation
Slot 2 Bifurcation
Slot 4 Bifurcation
Slot 5 Bifurcation
52 Pre-operating system management applications
Description
Enables or disables or only the boot driver is disabled
for the PCIe slot 1. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 2. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 3. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 4. This option is set to Enabled by
default.
Enables or disables or only the boot driver is disabled
for the PCIe slot 5. This option is set to Enabled by
default.
Description
Platform Default Bifurcation , Auto Bifurcation, and
Manual bifurcation
x4 Bifurcation
x4 Bifurcation
x4 Bifurcation
x4 Bifurcation