Intel BB5520UR Product Specification - Page 56

Functional Architecture Intel® Server Boards S5520HC, S5500HCV, and S5520HCT TPS 3.5 PCI Subsystem The primary I/O buses for the Intel® Server Board S5520HC are PCI, PCI Express* Gen1, and PCI Express* Gen2 with six independent PCI bus segments. The primary I/O buses for the Intel® Server Board S5500HCV are PCI, PCI Express* Gen1, and PCI Express* Gen2 with five independent PCI bus segments. PCI Express* Gen1 and Gen2 are dual-simplex point-to-point serial differential low-voltage interconnects. A PCI Express* topology can contain a Host Bridge and several endpoints (I/O devices). The signaling bit rate is 2.5 Gb/s one direction per lane for Gen1 and 5.0 Gb/s one direction per lane for Gen2. Each port consists of a transmitter and receiver pair. A link between the ports of two devices is a collection of lanes (x1, x2, x4, x8, x16, and so forth). All lanes within a port must transmit data using the same frequency. The PCI buses comply with the PCI Local Bus Specification, Revision 2.3. The following tables list the characteristics of the PCI bus segments. Details about each bus segment follow the tables. Table 8. Intel® Server Board S5520HC PCI Bus Segment Characteristics PCI Bus Segment PCI32 ICH10R PE1, PE2, PE3, PE4 ICH10R PCI Express* Ports Voltage 5 V 3.3 V PE5 ICH10R PCI Express* Port PE1, PE2 5520 IOH PCI Express* Ports PE3, PE4 5520 IOH PCI Express* Ports PE5, PE6 5520 IOH PCI Express* Ports PE7, PE8 5520 IOH PCI Express* Ports PE9, PE10 5520 IOH PCI Express* Ports 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V Width Speed 32 bit 33 MHz Type PCI PCI I/O Card Slots PCI Slot 1 x4 10 Gb/s PCI x4 PCI Express* Gen1 throughput to Slot Express* 2 (x8 mechanically) and Intel® SAS Entry Gen1 RAID Module AXX4SASMOD slot (Default to Slot 2, and switch to SAS Module slot when Intel® SAS Entry RAID Module AXX4SASMOD is detected) This PCI Express* Gen1 slot is not available when the SAS module slot is in use and vice versa. x1 2.5 Gb/s PCI x1 PCI Express* Gen1 throughput to Express* onboard Integrated BMC Gen1 x4 10 Gb/s PCI x4 PCI Express* Gen1 throughput to Express* onboard NIC (82575EB) Gen1 x8 40 Gb/S PCI x8 PCI Express* Gen2 throughput to Slot Express* 6 (x16 mechanically) Gen2 x8 40 Gb/S PCI x8 PCI Express* Gen2 throughput to Slot Express* 5 (x8 mechanically) Gen2 x8 40 Gb/S PCI x8 PCI Express* Gen2 throughput to Slot Express* 4 (x8 mechanically) Gen2 x8 40 Gb/S PCI x8 PCI Express* Gen2 throughput to Slot Express* 3 (x8 mechanically) Gen2 42 Revision 1.8 Intel order number E39529-013