Enable or Disable the processor x2APIC support in HP ProLiant DL160 Gen9

This article is to show how to enable or disable the x2APIC processor feature from your BIOS in HP ProLiant DL160 Gen9. Generally, in other servers, you should find it under the Processor features menu. Here we show you how to Disable it in HP ProLiant DL160 Gen9:

STEP 1) To enter the BIOS press F9 during the start-up of the HP server.

main menu
System Utilities

STEP 2) Select “System Configuration” and press “Enter” to enter the BIOS of the HP server.

main menu
System Configuration

STEP 3) Select “BIOS/Platform Configuration (RBSU)” and press “Enter” to enter the BIOS of the HP server.

As you can see from this menu you can also enter “iLO 4 Configuration Utility”, the Configuration Utility for the two embedded network addapters and the GUI management utility for the hardware controller – “Smart Array P440 Controller”.

main menu
BIOS/Platform Configuration (RBSU)

STEP 4) This is the BIOS main menu of a HPE ProLiant server GEN9.

Select “System Options” and press “Enter”.

main menu
System Options

STEP 5) Select “Processor Options” and press “Enter” to enter the specific processor features.

main menu
Processor Options

STEP 6) Select “Processor x2APIC Support” and press “Enter” to pop up the context menu with the options available.

main menu
Processor x2APIC Support

STEP 7) The options of “Processor x2APIC Support” are “Enable”, “Force Enable”, “Disable”. Select “Disable” and press “Enter”.

main menu
Processor x2APIC Support – disable

STEP 8) The option against the “Processor x2APIC Support” will change to “[Disabled]”.

To save the changes you must press “F10” and then the key “Y” to save.

main menu
Processor x2APIC Support – to save

STEP 9) The BIOS reports the changes are saved successfully.

And you probably should hit couple of “ESC” till the next step.

main menu
Processor x2APIC Support – disabled – saved BIOS changes

STEP 10) Exit by pressing “Enter”.

main menu
System Configuration – Exit

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