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The new interfaces discrete controllers are integrated to motherboards by two methods: directly, with the use of PCI express channels, or with the application of intermediate PLX bridge , which doubles channel capacity.
Problem appeared in Intel motherboards , which did not allot chipset Intel p55 by the support of valuable PCI express 2.0 interface. The chipset functions came to the work as a south bridge, in the portion Of Intel p55 fell out the support of eight lines PCI express x1. Interaction with video card is accomplished by the PCI express controller, build in the central processors.
But if we attentively look at Intel documents on p55 chipset, it is possible to reveal that the south bridge supports only PCI express 1.1, which ensures information exchange with the speed not more than 500 mb/s in each direction.
According to associate, Intel company will release in the first quarter 2011 chipset sixth series, which will use the valuable bus PCI express 2.0, and they will also propose support to 16 ports USB 3.0 and to six ports SATA-600.
The DMI bus capacity , which connects the processor to the chipset, must be doubled. PCI express 3.0 support will be added not earlier than 2012. Related Products :
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