The Intel Chipset Software Installation Utility installs to the target system the Windows* INF files that outline to the operating system how the chipset components will be configured. This is needed for the proper functioning of the following features:
Core PCI and ISA PNP Services
AGP Support
IDE/ATA33/ATA66/ATA100 Storage Support
USB Support
Identification of Intel Chipset Components in the Device Manager

Download:
Intel Chipset Software Installation Utility 7.2.1.1007