Cardbus Controller/Mode problem [PCMCIA to PCI Adapter Issue]

Generally, the Windows PCI drivers will support modern Intel chipset based motherboards with integrated PCI bridges. These PCI chipsets are usually setup as 'subtractive decode' bridges, and do not normally present a problem in this situation.

The problems occur when the motherboard manufacturer has added a PCI-to-PCI bridge to extend the PCI bus further, or a daughter board or backplane with PCI bus slots has a additional PCI bridge incorporated. These are usually 'positive decode' PCI-to-PCI bridges. The standard Windows PCI drivers do not support enumeration of 'positive decode' PCI bridges. This means that on these systems you are likely to have problems with allocation of resources. These problems usually show up as failures of the PCMCIA controller in Windows 9x/Me/2000 and XP as 'Code 10' or 'Code 12' failures and a 'No PCMCIA controller found' message in Windows NT4.
Click to expand...

http://www.elandigitalsystems.com/support/pfaq/pcibridges.php

nVidia motherboards don't work with these PCMCIA to PCI cards.
 
Linux works for nVidia motherboard

I have the Ricoh R5C520 PCMCIA to PCI card as well, and a Asus A7n8x and while it has been my experience that the card does not perform properly under windows, Linux sees it correctly on the same motherboard -and- I can use the pcmcia cards in it. The linux kernel does say that the pci resources were not seen past the bridge correctly, or something to the effect, but it worked around it.

My 2 cents.

BNewland
 
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