Ubuntu-mate 1504 incomparibility with Celeron CPU

[silver.bullet at zoho.com]

It's a PITA that distros claim supporting i386, while Linux actually
doesn't support i386 anymore, however, this is not the problem with your
CPU. Maybe a boot option fakepae or forcepae could help you

https://help.ubuntu.com/community/Lubuntu-fake-PAE

JFTR I read that Linux dropped i386 support in 2012 and Debian dropped
i386 support in 2005.

https://www.debian.org/releases/stable/i386/ch02s01.html.en

Ubuntu does support most i686 CPUs and dropped i383 in 2010 when
Precise was released.
"2.1.2.1. CPU

Nearly all x86-based (IA-32) processors still in use in personal
computers are supported, including all varieties of Intel's "Pentium"
series. This also includes 32-bit AMD and VIA (former Cyrix)
processors, and processors like the Athlon XP and Intel P4 Xeon.

However, Ubuntu precise will not run on i586 or earlier processors.
Despite the architecture name "i386", support for actual 80386
processors (and their clones) was dropped with the Sarge (r3.1) release
of Debian[2]. (No version of Linux has ever supported the 286 or
earlier chips in the series.) Support for i586 and lower processors, as
well as for i686 processors without the cmov instruction, was dropped
in Ubuntu 10.10. Most i686 and later processors are still
supported[3]." -
https://help.ubuntu.com/12.04/installation-guide/en.i386/ch02s01.html#idp62482496

https://en.wikipedia.org/wiki/P6_%28microarchitecture%29#P6_based_chips

Regards,
Ralf