Intel® Core™ i7-800/i5-700 Desktop Processors: Datasheet, Vol. 2
Volume 2 of this document describes configuration space registers and device-specific control and status registers for the Intel® Core™ i7-800 desktop processor series and the Intel® Core™ i5-700 desktop processor series. The processors contain one or more peripheral component interconnect (PCI) devices within a single physical component. The configuration registers for these devices are mapped as devices residing on the PCI bus assigned for the processor socket.
Read the full Intel® Core™ i7-800/i5-700 Desktop Processors Datasheet, Vol. 2.