Intel Desktop Board DP55SB Technical Product Specification

1.6 Intel

P55 Express Chipset

The Intel P55 Express Chipset consisting of the Intel P55 Platform Controller Hub

(PCH) provides interfaces to the processor and the USB, SATA, LPC, LAN, PCI, and

PCIe interfaces. The PCH is a centralized controller for the board’s I/O paths.

For information about Refer to

The Intel P55 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 fourteen USB 2.0 ports, supports EHCI, and has two internal

hubs (RMH) that allow the use of EHCI-compatible drivers.

The PCH provides the USB controller for all ports. The port arrangement is as follows:

• Eight ports are implemented with stacked back panel connectors

• Two internal headers that support four additional ports

• One onboard vertical USB connector that supports one port

• One port used to connect the onboard Bluetooth Module

For information about Refer to

The location of the USB connectors on the back panel Figure 10, page 42

The location of the front panel USB headers Figure 11, page 43