XP/centrino crashes under Vbox 3.02

Just installed the newly released VirtualBox 3.02 today, and my (guest) XP started to crash after I de-installed the "old" (2.2.x) guest additions and installed the 3.02 additions.
Turned out that this is a known windows virtualization problem on Centrinos [1] like documented here.

So I rebooted (for the umpteenth time), F8-ed and selected the last known working settings, regedited the

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Intelppm

to the value 4.

Rebooted, and voila... works again.


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[1] yes, this was on my beloved laptop.