CyberResearch MXGC Series, User Manual

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MXGC Series
CyberResearch
®
Motherboards
CyberResearch, Inc . 25
25 Business Park Drive P: (203) 483-8815; F: (203) 483-9024
Branford, CT USA www.cyberresearch.com
The PCIe x4 from the southbridge consists of four lanes. The four lanes are connected to
a PLX PEX8518 PCIe switch, which is then connected to three PCIe x4 expansion slots as
shown in Figure Error! No text of specified style in document. -10.
Figure Error! No text of specified style in document. -10: PCIe x4 Expansion
The PLX PEX8518 has 16 ports. Four ports are interfaced to four of the PCIe switch ports
from the ICH8D0 southbridge. The remaining twelve PCIe ports are interfaced to the three
PCIe x4 expansion slots. Some of the features of the PLX PEX8518 are listed below.
16-lane PCI Express switch
Maximum Power: 3.53 Watts
PCI Express Base Specification, rev. 1.1 compliant
Non-blocking switch fabric
Full line rate on all ports
2.6.3 PCIe GbE Ethernet
Two PCIe x1 lanes from the are connected to two Broadcom BCM5787M PCIe GbE
controllers shown in Figure Error! No text of specified style in document. -11 below.