If you are asking in what physical address range your 8GB DIMMs are located, thats a mainboard vendor question. The BIOS vendor is probably the right venue if you need to know how a given BIOS vendor implements that product. You asked about what memory remapping in the BIOS settings does. If it is 8GB because the addresses are moved closed to 64GB, why the hell my motherboard is limited to only 8GB, if all the things tell me that I am able to address up to 64GB? The same question is: If I have Windows64bit, 8GB on my motherboard which supports 8GB, and I have enabled the Memory Remapping, would I be able to address all the 8GB or again I can have the limit to 6.8GB - 7.5GB?

(I have written this one just not to finish with only 2 options, but I wouldn't bet on it a single euro). In any case close tothe incredible address 2^64, because the complete address space of the processor is 64bit, so regardless of the 36bit of ABUS, motherboard issues or whatever else. Close to 8GB because my Motherboard has only a maximum addressable of 8GB, so it is really likely that it has only 33 lines of ABUS, so regardless of processor and chipsetДЈ. Close to 64GB because my Processor has got only 36bit of ABUS, regardless of motherboard and chipset (I have a E6600 now)Дў. Where are the addresses of the memory mapping devices moved to?ДЎ. I don't know what happens when I enable the memory remapping option on the BIOS.

I know how PAE, 64bit addressing, Segmentation and protection on 386 or PentiumPro work

Memory reamp