Dell DR4300 System Owner's Manual page 46

Option Description
Memory Mapped Enables or disables the support for PCIe devices that need large amounts of memory. This option is set to
I/O above 4 GB Enabled by default.
Slot Disablement Enables or disables the available PCIe slots on your system. The slot disablement feature controls the
configuration of 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.
Related tasks
Viewing Integrated Devices
Related reference
Integrated Devices
Serial Communication
You can use the Serial Communication screen to view the properties of the serial communication port.
Related tasks
Serial Communication details
Viewing Serial Communication
Related reference
System BIOS
Viewing Serial Communication
To view the Serial Communication screen, perform the following steps:
Steps
1. Turn on, or restart your system.
2. Press F2 immediately after you see the following message:
F2 = System Setup
NOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then
restart your system and try again.
3. On the System Setup Main Menu screen, click System BIOS.
4. On the System BIOS screen, click Serial Communication.
Related tasks
Serial Communication details
Related reference
Serial Communication
Serial Communication details
About this task
The Serial Communication screen details are explained as follows:
46 Pre-operating system management applications