HP (Hewlett-Packard) 4720S Laptop User Manual


 
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Device Configurations
Enable/disable USB legacy support (enabled by default).
When enabled, USB legacy support allows the following:
Use of a USB keyboard in Computer Setup even
when a Windows operating system is not running.
Startup from bootable USB devices, including a
hard drive, diskette drive, or optical drive
connected by a USB port to the computer.
Select a parallel port mode: ECP (Enhanced Capabilities
Port), standard, bidirectional, or EPP (Enhanced Parallel
Port).
Enable/disable fan always on while connected to an AC
outlet (enabled by default).
Enable/disable Data Execution Prevention (select models
only). When enabled, the processor can disable some
virus code execution, which helps to improve computer
security (enabled by default).
Select a SATA (Serial Advanced Technology Attachment)
device mode. The following options are available:
AHCI (Advanced Host Controller Interface)
IDE (Integrated Drive Electronics)
RAID (Redundant Array of Independent Disks) (select
models only)
128 Chapter 5 Computer Setup