Dell EMC E39S Series

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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