Pci Express X16 Graphics; Usb - Intel BLKDQ67SW Technical Product Specification

1.7.2

PCI Express x16 Graphics

The Intel Core i7, Intel Core i5, Intel Core i3, and Intel Pentium processors in an
LGA1155 socket support discrete add in graphics cards through the PCI Express 2.0
x16 graphics connector:
• Supports PCI Express GEN2 frequency of 2.5 GHz resulting in 5.0 Gb/s each
direction (500 MB/s) per lane. Maximum theoretical bandwidth on interface is
8 GB/s in each direction, simultaneously, when operating in x16 mode.
• Supports PCI Express GEN1 frequency of 1.25 GHz resulting in 2.5 Gb/s each
direction (250 MB/s) per lane. Maximum theoretical bandwidth on interface is
4 GB/s in each direction, simultaneously, when operating in x16 mode.
For information about
PCI Express technology
1.8

USB

The board supports up to 12 USB 2.0 ports and two USB 3.0 ports.
The Intel Q67 Express Chipset provides the USB controller for the 2.0 ports. The two
USB 3.0 ports are provided by the NEC* UPD720200 controller. The port arrangement
is as follows:
• Two USB 3.0 ports are implemented with stacked back panel connectors (blue)
• Four 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 14 USB ports are high-speed, full-speed, and low-speed capable. The USB 3.0 ports
are super-speed capable.
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 a
shielded cable that meets the requirements for full-speed devices.
In order to use supported USB 3.0 features, you must first install the USB 3.0 drivers.
Operating system installation may be interrupted if keyboard and mouse devices are
connected to the SuperSpeed USB 3.0 ports (blue) during installation due to the lack
of native USB 3.0 driver support from the operating system.
For information about
The location of the USB connectors on the back panel
The location of the front panel USB headers
Obtaining USB 3.0 software and drivers
Product Description
Refer to
http://www.pcisig.com
Refer to
Figure 9, page 44
Figure 10, page 45
Section 1.3, page 14
19