Hi All, I booted up an Acer Core2Duo (P7550) with 4G of RAM using a Knoppix DVD and only 3G of RAM is visible. Why would that be so? Both cores of the CPU are recognised, so I think that the kernel is SMP enable. I attach the lspci output in case you see something that explains it. Unfortunately, hwinfo fails with an io segmentation ... -- Regards, Mick