> We found a Pentium M 1.70 GHz which does not work with forcepae. It gives the 
> following output from
> 
> cpuid|grep ^00000001
> 
> 00000001 000006d6 00000816 00000180 afe9fbbf

What happens when you try to boot with forcepae? Do you get an error
message? Black screen?

In the wiki you have mentioned "afe9fbbf for both of the CPUs that lack
PAE capability" but the 1.2GHz that was reported to not work has cpuid
"a7e9fbbf" and the 1.7Ghz "afe9fbbf" which are different (a7,af)

Compiling a non-PAE kernel is trivial - you just need to `apt-get source
linux-image`, set CONFIG_X86_PAE=y in .config then `dpkg-buildpackage -b
-uc`. You could easily automate this from a 32-bit 14.04 daily cron job
that checks whether there is a new kernel version, and if so rebuild the
kernel and pushes the result to a PPA (which would have to be enabled by
default in Lubuntu or whatever).

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https://bugs.launchpad.net/bugs/930447

Title:
  Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M
  x86 Laptop due to bug in PAE kernel, initramfs or syslinux

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