Intel D975XBX2 Product Specification - Page 24
Intel, 975X Chipset - express drivers
UPC - 735858186179
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Intel Desktop Board D975XBX2 Technical Product Specification 1.5 Intel® 975X Chipset The Intel 975X chipset consists of the following devices: • Intel 82975X Memory Controller Hub (MCH) with Direct Media Interface (DMI) interconnect • One of the following: ⎯ Intel 82801GR I/O Controller Hub (ICH7-R) with DMI interconnect ⎯ Intel 82801GH I/O Controller Hub (ICH7-DH) with DMI interconnect The MCH is a centralized controller for the system bus, the memory bus, the PCI Express bus, and the DMI interconnect. The ICH7 is a centralized controller for the board's I/O paths. The BIOS code is stored in the Serial Peripheral Interface (SPI) Flash device. For information about The Intel 975X chipset Resources used by the chipset Refer to http://developer.intel.com/ Chapter 2 1.5.1 USB The board supports up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. The ICH7-R/ICH7-DH provides the USB controller for all ports. The port arrangement is as follows: • Four ports are implemented with dual stacked back panel connectors adjacent to the audio connectors • Four ports are routed to two separate front panel USB headers NOTES Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device is attached to the cable. Use shielded cable that meets the requirements for full-speed devices. For information about The location of the USB connectors on the back panel The location of the front panel USB headers Refer to Figure 19, page 58 Figure 20, page 59 24