HP dv7-6b56nr A1T84UAR#ABA manual Address hex System function shipping configuration

Specifications

I/O address (hex)		System function (shipping configuration)
30F0 - 30F7		Standard Dual Channel PCI IDE Controller
30F8 - 30FF (discrete only)		Standard Dual Channel PCI IDE Controller
4000	- 407F (discrete only)	nVidia GeForce8400M GS
4000	- 4FFF	PCI standard PCI-to-PCI bridge
5000	- 5FFF (discrete only)	PCI standard PCI-to-PCI bridge

Maintenance and Service Guide 6–9