1. IP380 USER GUIDE Dimensions 4 PCI Slot Routing List PCI signal PCI1 PCI2 PCI3 PCI4 IDSEL AD31 AD30 AD29 AD28 INTA B Cc D A INTB C D A B INTC D A B C INTD A B C D REQ 0 1 2 3 GNT 0 1 2 3 Remarks 32 bits 5V PCI Express slots PCIEX16 16 lane PCI Express port x16 PCI Express port intended for graphics PCIE_1 PCIE_3 General x1 PCI Express port supported RESET SHB hardware RESET bottom connector PWR BTN SHB ATX power ON OFF connector ATX AT ATX ATX power supply switch selection Connector Pin Assignment ATX1 ATX Power Supply Connector Signal Name q 3 3V 12V Ground PS ON Ground Ground Ground AT Power Supply Connector USB Connector 6 5v 8 Powergood 9 5VSB_ Pin Signal Name Ground USB USB USB Vece Remark USBO USB4 are derived from SHB Signal Name Ground 12V Rotation detection