Dell 690 only seeing 3 GB RAM (was: slow last 128MB...)

[Dave Johnson]

Ben Scott writes:
>   I'm not sure if disabling MTRR is a good idea or not.  It may be
> important for other reasons, and sometimes disabling something that is
> causing a problem just leads to bigger problems down the road.
> Perhaps Dave or someone else who understands it better can comment on
> that aspect?

If by disabling you mean CONFIG_MTRR, all that will do is remove
/proc/mtrr and prevent video drivers from modifying MTRR.  MTRR
is still present in the CPU, linux just won't touch it.

-- 
Dave