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SubjectRe: 4GB memory and Intel Dual-Core system
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    Marcel> The BIOS and dmidecode tells me that I have 4 GB of RAM
Marcel> installed and I don't have any idea where to look for
Marcel> details. What information do you need to analyze this?

Look at the e820 dump in your kernel bootlog. I'll bet you'll see a
big chunk of reserved address space. Do you have any PCI devices like
video cards that use a lot of PCI address space?

I don't know if EM64T systems (or whatever the right term is) have a
way of remapping some RAM above 4 GB so that you can use all your
memory in a case like this.

- R.
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