I can't install Ubuntu or start Ubuntu live on my PC. I have a (ca. 2014) Asus Rampage V motherboard and an Intel i7-5960x CPU. When I want to start Ubuntu from a LiveUSB on this six year old design, I got this message :

Screen pic of boot failure

I tried 18.04 and 20.04 but error is the same.

Yes. It works on Windows 10. I tested cpu with prime95, Realbench and 3dMark and every test was fine. I updated bios on motherboard to Version 4101 - 2019/07/17.

I tried Xubuntu installation, but the system froze during installation. I tried CentOS to with CentOS-8.1.1911-x86_64-boot but result was the same, system froze.

I also tried with Load optimal defaults in Bios, but it didn't help.

This is very similar problem that I have (if not the same) :

Can't install Ubuntu on Asus Rampage Extreme IV

I manage somhow to enter in Live 20.04 and get dmesg:

enter image description here

When I tried to install system from Ubuntu Minimal (mini.iso), installtion stuck on 78% Selecting the kernel to install.... enter image description here

  • 1
    does windows work? – Kenivia May 22 at 23:24
  • Please download the Xubuntu ISO and try it, following these instructions: askubuntu.com/a/1242546/197910 then please click edit & add the results to your question, so all facts we need are in the question. Please don't use Add Comment, since that's our one-way channel to you. All facts about your PC should go in the Question with edit as this is a Q&A site, not a general forum, so things work differently here. – K7AAY May 22 at 23:37
  • 1
    You may need to update microcode from Intel. Take a look at this document. – Mitch May 25 at 8:57
  • Microcode is updated. But problem persist. Definitely compatibility issue. – delevic May 26 at 8:56

I manage to boot with kernel option "acpi=off noapic"

enter image description here

and only one core works...

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