Where is x2apic?
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=5547
Printed Date: 27 Jul 2025 at 12:00pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Where is x2apic?
Posted By: untoreh
Subject: Where is x2apic?
Date Posted: 11 Jul 2017 at 12:45pm
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Hello, I am running linux on an asrock z87 fatality killer with an intel haswell 4770k. But the x2apic extension doesn't seem to be enabled. I can only run virt with westmere arch because of this so I would appreciate if someone explains to me why the extension is off. I have read there could possibly be a switch in the bios to toggle it but I couldn't find any, I am running the latest bios that can be downloaded from asrock website. I also tried the kernel boot parameter
which supposedly makes linux override the off switch from the bios but still no success. Just to be clear x2apic is actually not present in the cpu flags
returns nothing. |
intremap=no_x2apic_optoutReplies:
Posted By: wardog
Date Posted: 11 Jul 2017 at 1:57pm
Intel is famous for disabling functions on the K processors so that comes as no surprise sorry to say. |