Product Description
21
1.6 Intel
®
X79 Express Chipset
The Intel X79 Express Chipset consisting of the Intel X79 Platform Controller Hub
(PCH) provides interfaces to the processor and the USB, SATA, LAN, PCI, and PCI
Express interfaces. The PCH is a centralized controller for the board’s I/O paths.
For information about Refer to
The Intel X79 Express Chipset http://www.intel.com/products/desktop/chipsets/index.htm
Resources used by the chipset Chapter 2
1.6.1 USB
The board supports up to 14 USB 2.0 ports and six USB 3.0 ports.
The Intel X79 Express Chipset provides the USB controller for the 2.0 ports. The six
USB 3.0 ports are provided by two NEC* UPD720200 controllers. The port
arrangement is as follows:
• Four USB 3.0 ports are implemented with stacked back panel connectors (blue)
• Two USB 3.0 front panel ports implemented through one internal connector (blue)
• Six USB 2.0 ports are implemented with stacked back panel connectors (black)
• Eight USB 2.0 front panel ports implemented through four internal headers
All 20 USB ports are high-speed, full-speed, and low-speed capable. The USB 3.0 ports
are super-speed capable.
NOTE
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 a
shielded cable that meets the requirements for full-speed devices.
For information about Refer to
The location of the USB connectors on the back panel Figure 11, page 46
The location of the front panel USB headers Figure 13, page 48
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