Sandy Bridge logical view

[cianfa72]

Help ! Thanks

[Combuster]

If you hide all attempts at asking a question, of course you can expect a lack of answers.

To get you something to think about: there's only one real PCI bus on the system - those are the slots on your motherboard. The rest is nothing but fake mentions to save the OS from designing new hardware detection schemes. After all, how will you get the speed of a PCI express x16 slot if everything has to be pushed over a 33MHz 32-bit bus somewhere between the CPU and the video card?

[cianfa72]

To get you something to think about: there's only one real PCI bus on the system - those are the slots on your motherboard. The rest is nothing but fake mentions to save the OS from designing new hardware detection schemes. After all, how will you get the speed of a PCI express x16 slot if everything has to be pushed over a 33MHz 32-bit bus somewhere between the CPU and the video card?

Yes....I know it does exist a PCI express x16 link between processor and video card. I do not know the details (I'm a beginner...) but AFAIK the first 256 bytes of each device's PCI Express configuration space are "PCI compatible"....so I believe any PCI tool should report this (part of) information also for a PCI express device (i.e. the NVIDIA card attached behind the PCI Express root port).

Does it make sense ?

PS I tried using other tool (e.g. rw-everything) having same results.....no NVIDIA card shown

[Combuster]

I blame windows. I do get PCI Express devices in PCI enumerations on my own OS, and so does lspci on linux.