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SubjectRe: cpu reset on laptops and microcode update.
Followup to:  <Pine.LNX.4.21.0009210946410.1060-100000@saturn.homenet>
By author: Tigran Aivazian <>
In newsgroup:
> A long time ago I noticed a curious feature on my Dell Latitude CPx
> H-450GT laptop - rebooting it via "shutdown -r now" (and therefore going
> through BIOS) does not discard the microcode applied to the CPU. But I
> would expect it to be discarded as prescribed by Intel manuals, on #RESET.
> Does it mean that rebooting a laptop does not actually ever reset the
> CPU? (this would imply that the BIOS is also a protected mode software?)

Most CPU's aren't... instead the system assert INIT.

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