Hi Hans, > It seems that the region is reserved for pnp, which cannot > be disabled in the bios. This seems to be the case on the > 3 MSI mobo's. I don't know how to deal with this problem.. Do you have more details on the MSI mobo's? Type? BIOS version? And the memory configuration (how many MB's / GB's) Maybe the PAE - Physical Address Extension is messing up the memory-mapped I/O on these mobo's. If that's the case, it's very likely that the only data your driver gets is rubbish data. PAE could reserve certain regions for PCI/pnp addressing. But normally that only happens on 4Gb systems where the top 512Mb is reserved for PCI/pnp addressing. Looking forward to your reply Kind regards, Jan van Tiggelen
