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Table 3-4 Computer Setup—Security (continued)
Slot Security | Allows you to disable any PCI or PCI Express slot. Default is enabled. |
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Network Boot | Enables/disables the computer’s ability to boot from an operating system installed on a network |
| server. (Feature available on NIC models only; the network controller must be either a PCI |
| expansion card or embedded on the system board.) Default is enabled. |
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System IDs | Allows you to set: |
| ● Asset tag |
| the computer. |
| ● Ownership tag |
| ● 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.) |
| ● Keyboard locale setting for System ID entry. |
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Master Boot Record | Enables/disables Master Boot Record (MBR) security. |
Security | The MBR contains information needed to successfully boot from a disk and to access the data |
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| stored on the disk. Master Boot Record Security may prevent unintentional or malicious changes |
| to the MBR, such as those caused by some viruses or by the incorrect use of certain disk utilities. |
| It also allows you to recover the "last known good" MBR, should changes to the MBR be detected |
| when the system is restarted. |
| When MBR Security is enabled, the BIOS prevents any changes being made to the MBR of the |
| current bootable disk while in |
| NOTE: Most operating systems control access to the MBR of the current bootable disk; the |
| BIOS cannot prevent changes that may occur while the operating system is running. |
| Restores the backup Master Boot Record to the current bootable disk. Default is disabled. |
| Only appears if all of the following conditions are true: |
| ● MBR security is enabled |
| ● A backup copy of the MBR has been previously saved |
| ● The current bootable disk is the same disk from which the backup copy was saved |
| CAUTION: Restoring a previously saved MBR after a disk utility or operating system has |
| modified the MBR, may cause the data on the disk to become inaccessible. Only restore a |
| previously saved MBR if you are confident that the current bootable disk's MBR has been |
| corrupted or infected with a virus. |
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