HP UEFI System Utilities User Guide for HP ProLiant DL580 Gen8 Servers

Figure 89 PCI Express 64–Bit BAR Support screen
Setting Processor X2Apic Support
This option enables support for processor X2Apic devices. Enabling this option generates ACPI
X2Apic structures.
To set processor X2Apic support:
1. From the System Utilities screen, select System ConfigurationBIOS/Platform Configuration
(RBSU)Advanced OptionsAdvanced System ROM OptionsProcessor X2Apic Support and
press Enter.
2. Select one of the following options:
Enabled
Disabled (default)
3. Press F10 to save your selection.
98 Accessing the System Configuration Menu