3.2.12 LAN Link LED Connector.............................................................................. 40
3.2.13 M.2 A-key slot ................................................................................................ 41
3.2.14 M.2 B-key slot ................................................................................................ 43
3.2.15 M.2 M-key slot (on solder side) ..................................................................... 45
3.2.16 On-Board Power Switch ................................................................................ 47
3.2.17 DDR4 DIMM Slots......................................................................................... 47
3.2.18 SATA 6Gb/s Connectors................................................................................. 48
3.2.19 RS-232 Serial Port Connectors...................................................................... 49
3.2.20 RS-422/485 Serial Port Connectors............................................................... 50
3.2.21 Flash SPI ROM Connector ............................................................................ 52
3.2.22 Flash EC ROM Connector............................................................................. 53
3.2.23 SIM Card Slot................................................................................................. 54
3.2.24 Internal USB 2.0 Connectors......................................................................... 55
3.2.25 Internal USB 3.2 Gen 1 Connector (Type-A)................................................. 56
3.2.26 Internal USB 3.2 Gen 1 Connector................................................................ 57
3.3 EXTERNAL PERIPHERAL INTERFACE CONNECTOR PANEL ......................................... 58
3.3.1 External 2.5GbE RJ-45 connectors ................................................................. 59
3.3.2 External HDMI connector ............................................................................... 60
3.3.3 External USB 3.2 Gen 1 Connectors (Type-A) ................................................ 61
3.3.4 External USB 3.2 Gen 2 Connector (Type-C).................................................. 62
4 INSTALLATION ......................................................................................................... 63
4.1 ANTI-STATIC PRECAUTIONS...................................................................................... 64
4.2 INSTALLATION CONSIDERATIONS.............................................................................. 64
4.3 SOCKET LGA1200 CPU INSTALLATION ................................................................... 66
4.4 SOCKET LGA1200 COOLING KIT INSTALLATION ..................................................... 69
4.5 DIMM INSTALLATION .............................................................................................. 71
4.6 SYSTEM CONFIGURATION......................................................................................... 72
4.6.1 AT/ATX Power Mode Setting ........................................................................... 72
4.6.2 BIOS Selection Switch...................................................................................... 73
4.6.3 Clear CMOS Button......................................................................................... 74
4.6.4 PCIe x16 Channel Mode Setup........................................................................ 74
4.6.5 Flash Descriptor Security Override Jumper.................................................... 75
4.6.6 USB Power Selection ....................................................................................... 76
4.7 INTERNAL PERIPHERAL DEVICE CONNECTIONS........................................................ 77