Slowing down an XO-1.5

Mikus Grinbergs mikus at
Tue Mar 30 09:56:13 EDT 2010

>    Is there a simple way from OFW (or ACPI) to restrict
> the operating frequency of the processor in the XO-1.5
> to be the lowest possible ?
> The relevant comment from a deployment was that they
> can't use full speed XO-1.5 motherboards as replacements
> for XO-1 motherboards.  They think kids would break their
> laptop to get it upgraded...

I would expect any kid enterprising enough to break a laptop in order to
get it upgraded -- to also be enterprising enough to "hack" the
replacement to bypass any software restrictions.  Only when the
replacement (despite determined attack) cannot be made better than the
original would the risk of kids "breaking their laptop" be diminished.


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