Usb Support; Redundant Rom Support - HP proliant ml350 gen9 User Manual

Legacy USB support provides USB functionality in environments where USB support is not available normally.
Specifically, HP provides legacy USB functionality for the following:
•
POST (system boot)
•
UEFI System Utilities
•
Pre-boot UEFI shell
•
DOS
•
Operating environments which do not provide native USB support
External USB functionality
HP provides external USB support to enable local connection of USB devices for server administration,
configuration, and diagnostic procedures.
For additional security, external USB functionality can be disabled through USB options in UEFI System
Utilities.

USB support

HP provides standard USB 2.0 support, standard USB 3.0 support, and legacy USB support. Standard
support is provided by the OS through the appropriate USB device drivers.
Before the OS loads, HP provides support for USB 2.0 devices through legacy USB support, which is enabled
by default in the system ROM. USB 3.0 ports are not functional before the OS loads. The native OS provides
USB 3.0 support through appropriate xHCI drivers.
Legacy USB support provides USB functionality in environments where USB support is not available normally.
Specifically, HP provides legacy USB functionality for the following:
•
POST (system boot)
•
UEFI System Utilities
•
Pre-boot UEFI shell
•
DOS
•
Operating environments which do not provide native USB support
External USB functionality
HP provides external USB support to enable local connection of USB devices for server administration,
configuration, and diagnostic procedures.
For additional security, external USB functionality can be disabled through USB options in UEFI System
Utilities.

Redundant ROM support

The server enables you to upgrade or configure the ROM safely with redundant ROM support. The server has
a single ROM that acts as two separate ROM images. In the standard implementation, one side of the ROM
contains the current ROM program version, while the other side of the ROM contains a backup version.
Software and configuration utilities 114