HP ProLiant ML310 G5 Server - Manual (Page 54)

Software and configuration utilities 54
IMPORTANT: You must install and use HP SIM to benefit from the Pre-Failure Warranty for
processors, SAS and SCSI hard drives, and memory modules.
For additional information, refer to the Management CD in the HP ProLiant Essentials Foundation Pack or
the HP SIM website (
http://www.hp.com/go/hpsim ).
USB support
HP provides both standard USB support and legacy USB support. Standard support is provided by the
operating system through the appropriate USB device drivers. HP provides support for USB devices before
the operating system loads through legacy USB support, which is enabled by default in the system ROM.
HP hardware supports USB version 1.1.
Legacy USB support provides USB functionality in environments where USB support is normally not
available. Specifically, HP provides legacy USB functionality at:
• POST
• RBSU
• Diagnostics
• DOS
• Environments which do not support USB natively
For more information on ProLiant USB support, refer to the HP website
( http://www.compaq.com/products/servers/platforms/usb-support.html ).
Internal USB functionality
An internal USB connector is available for use with security key devices and USB drive keys. This solution
provides for use of a permanent USB key installed in the internal connector, avoiding issues of clearance
on the front of the rack and physical access to secure data.
For additional security, external USB functionality can be disabled through RBSU. Disabling external USB
support in RBSU disables the USB connectors on the local I/O cable. Internal USB functionality is
unaffected.
ROM legacy USB support
When using operating systems that support USB, the server supports USB devices, including, but not
limited to:
• CD-ROM drives
• Diskette drives
• Keyboard
• Mouse
For other operating systems, the ROM provides USB support for a keyboard, mouse, and diskette drives,
which do not support USB, but not for CD-ROM drives.
ROM legacy USB support is available during POST and while the operating system is running. The
maximum device support is two USB keyboards, two USB mouse devices, and one layer of hubs.