Troubleshooting Guide HP t520 Flexible Thin Client

Table B-1 Computer Setup—Security (continued)
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Universal Unique Identifier (UUID) number. The UUID can only be updated if the current chassis
serial number is invalid. (These ID numbers are normally set in the factory and are used to uniquely
identify the system.)
System Security Data Execution Prevention (enable/disable) - Helps prevent operating system security breaches. Default
is enabled.
Virtualization Technology (enable/disable). Controls the virtualization features of the processor.
Changing this setting requires turning the computer off and then back on. Default is disabled.
Secure Boot
Configuration
The options on this setup page are only for Windows 8 and other operating systems that support Secure
Boot. Changing the default setting of the setup options on this page for operating system that do not
support secure boot may prevent the system from booting successfully.
Legacy Support (Enable/Disable). Enable or disable the legacy operating system support (Windows
Embedded Standard 7 and HP Thin-Pro).
Secure Boot (Enable/Disable). Only when the Legacy Support set to “Disable”, this item can be set to
Enabled. This item is for Secure Boot flow control. Secure boot is possible only if system run in user
mode.
Key Management
●
Clear Secure Boot Keys (Clear/Don’t Clear). Lets you clear the Secure Boot Key.
●
Key ownership (HP keys/ Customer keys). Lets you change the keys of different owners.
Fast Boot (Enable/Disable). Enable Fast Boot cause system boot by initializing a minimal set of devices
which is required to launch active boot option. This option has no effect for BBS boot options.
Computer Setup—Power
NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Table B-2 Computer Setup—Power
Option Description
OS Power Management Runtime Power Management (Enable/Disable)
Idle Power Savings (Extended/Normal)
Hardware Power
Management
SATA Power Management – Enables or disables SATA bus and/or device power management. Default is
enabled.
S5 Maximum Power Savings – Turns off power to all nonessential hardware when system is off.
S5 Wake on LAN (Disable/Enable). Permits the user to control whether the system should wake from S5 if
a magic packet id received by NIC.
Computer Setup (F10) Utilities 21