Intel SE7221BA1 Product Specification - Page 47

Intel® Entry Server Board SE7221BA1-E TPS Connections and Jumper Blocks Table 21. ATX12V Power Connector Pin Signal Name 1 Ground 3 Ground 5 +12 V 7 +12 V Pin Signal Name 2 Ground 4 Ground 6 +12 V 8 +12 V 6.1.5 Add-in Card Connectors The Intel® Server Board SE7221BA1-E has the following add-in card connectors: • PCI Express* x8: one connector supporting simultaneous transfer speeds up to 8 GBytes/sec • PCI Express* x4: The board has two PCI Express* x4 connectors. • PCI Conventional (rev 2.2 compliant) bus: The SE7221BA1-E board has three PCI Conventional bus add-in card connectors. Note the following considerations for the PCI Conventional bus connectors: • All of the PCI Conventional bus connectors are bus master capable. • SMBus signals are routed to PCI Conventional bus connector 2. This enables PCI Conventional bus add-in boards with SMBus support to access sensor data on the Server Board. The specific SMBus signals are as follows: ⎯ The SMBus clock line is connected to pin A40. ⎯ The SMBus data line is connected to pin A41. 6.2 Jumper Blocks CAUTION Do not move the jumper with the power on. Always turn off the power and unplug the power cord from the computer before changing a jumper setting. Otherwise, the board could be damaged. Figure 16 shows the location of the jumper blocks. The 3-pin jumper blocks determine the BIOS Setup program's mode. Table 22 describes the jumper settings for the three modes: normal, configure, and recovery. When the jumper is set to configure mode and the computer is powered-up, the BIOS compares the processor version and the microcode version in the BIOS and reports if the two match. Table 23 describes the jumper settings for clearing CMOS. Revision 1.5 37