hi everyone, I am trying to determine the memory controller configurations of an Nehalem-EX Xeon X7550 processor, such as the open-page mode to close-page mode switching threshold.
Because my BIOS won't tell me much information, I think I need to read the memory controllers' PCI configuration space. However, I have searched the web, and couldn't find any document about the layout of the PCI configuration space. X7550's datasheet mentions a few PCI regeister names, such as M_PCSR_MAP_PHYS_DIMM. But there is no information about the address of these registers and their the data formats. Does anyone know where can I find documents on Intel's PCI configuration space? Or, if the PCI configuration space is not the correct place to look, where can I find information about the memory controller configurations?
Thank you very much.