Chapter 2 – Hardware Information 15Fanless Embedded Controller BOXER-6843-ADSPin Pin Name Signal Type Signal LevelA22 PCIE_RXN23 DIFFA23 GND GNDA24 GND GNDA25 PCIE_RXP22 DIFFA26 PCIE_RXN22 DIFFA27 GND GNDA28 GND GNDA29 PCIE_RXP21 DIFFA30 PCIE_RXN21 DIFFA31 GND GNDA32 NCB1 +12V PWR +12VB2 +12V PWR +12VB3 +12V PWR +12VB4 GND GNDB5 SMB_CLK I/OB6 SMB_CLK I/OB7 GND GNDB8 +V3.3S PWR +3.3VB9 NCB10 3.3Vaux PWR +3.3VB11 WAKE# I/OB12 NCB13 GND GNDB14 PCIE_TXP24 DIFFB15 PCIE_TXN24 DIFFB16 GND GNDB17 PRSNT I/OB18 GND GND