HPE ProLiant Gen9

a. Enabled—Enables the logical processor cores on processors supporting Intel Hyperthreading
technology.
b. Disabled—Disables the logical processor cores on processors supporting Intel Hyperthreading
technology.
3. Press F10.
Processor Core Disable
Use this option to specify the number of cores to enable per processor socket using Intel's Core Multi-
Processing (CMP) Technology. Unused cores are disabled. Setting this option can:
• Reduce processor power usage
• Improve overall performance for applications that benefit from higher performance cores rather than more
processing cores
• Solve issues with software that is licensed on a per-core basis
Setting the number of enabled processor cores
Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration
(RBSU) > System Options > Processor Options > Processor Core Disable and press Enter.
2. Enter the number of cores to enable per processor socket and press Enter.
• If you enter an incorrect value, all cores are enabled.
• If you enter 0, all cores are enabled.
3. Press F10.
Processor x2APIC Support
Use this option to enable or disable x2APIC support. When enabled, processor x2APIC support helps
operating systems run more efficiently on high core count configurations and optimizes interrupt distribution in
virtualized environments. Enabled mode does not enable x2APIC hardware, but provides the support
necessary to the operating system. Unless you are using an older hypervisor or operating system that is not
compatible with x2APIC support, leave this option enabled.
Enabling or disabling Processor x2APIC Support
Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration
(RBSU) > System Options > Processor Options > Processor x2APIC Support and press Enter.
2. Select a setting and press Enter.
46 Processor Core Disable