Product Description
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1.6.1.6 PCI Express x16 Graphics
The GMCH also supports add in discrete graphics card via the PCI Express 2.0 graphics
connector.
• PCI Express 2.0 x16:
⎯ Supports PCI Express GEN1 frequency of 1.25 GHz resulting in 2.5 Gb/s each
direction (500 MB/s total). Maximum theoretical bandwidth on interface of
4 GB/s in each direction simultaneously, for an aggregate of 8 GB/s when
operating in x16 mode.
⎯ Supports PCI Express GEN2 frequency of 2.5 GHz resulting in 5.0 Gb/s each
direction (1000 MB/s total). Maximum theoretical bandwidth on interface of
8 GB/s in each direction simultaneously, for an aggregate of 16 GB/s when
operating in x16 mode.
For information about Refer to
PCI Express technology http://www.pcisig.com
1.6.2 USB
The board supports up to 12 USB 2.0 ports, supports UHCI and EHCI, and uses UHCI-
and EHCI-compatible drivers.
The ICH10DO provides the USB controller for all ports. The port arrangement is as
follows:
• Six ports are implemented with stacked back panel connectors
• Six ports are routed to three separate front panel USB headers
For information about Refer to
The location of the USB connectors on the back panel Figure 9, page 49
The location of the front panel USB headers Figure 10, page 50
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