IEI Technology PCIE-9452, User Manual

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PCIE-9452 PICMG 1.3 CPU Card
Page 21
Figure 2-7: I/O Golden Finger
2.6.9 Intel
®
ICH7R PCIe Bus
2.6.9.1 Intel
®
ICH7R PCIe Bus Overview
The Intel® ICH7R southbridge chipset has six PCIe lanes. Two of the PCIe lanes are
connected to two Broadcom PCIe GbE Ethernet controllers. The remaining four PCIe
lanes are interfaced through a golden finger on the bottom of the CPU card through the
backplane to either four PCIe x1 expansion cards or one PCIe x4 expansion card.
2.6.9.2 PCIe x4 Expansion Options
Four PCIe x1 expansion cards or one PCIe x4 expansion card can be installed onto a
compatible PICMG 1.3 backplane and are interfaced through the PCIe x4 golden finger on
the bottom of the PCIE-9452 to the southbridge chipset. The PCIe x4 golden finger is
shown in Figure 2-8 below.