System-board components1 system board power connector (ATX_POWER) 2 Front USB 2 (F_SSUSB2)3 Front USB 1 (F_SSUSB1) 4 SATA 6 Gbps for hard drive (SATA1)5 SATA 6 Gbps for optical drive (SATA2) 6 SATA 6 Gbps drive connector (SATA3)7 SATA 6 Gbps drive connector (SATA4) 8 solid-state drive slot (M.2 SSD)9 front I/O panel (F_PANEL) 10 media card reader connector (CARD_READER)11 CMOS-reset jumper (CMOS JUMPER) 12 password-reset jumper (PASSWORD JUMPER)13 PCI-Express x16 card slot (SLOT1) 14 PCI-Express x1 card slots (SLOT 2 and SLOT 3)15 PCI-Express x4 card slot (SLOT 4) 16 front audio connector (F_audio)17 wireless-card slot (M.2_SLOT1) 18 CPU power cable (ATX_CPU)19 chassis-fan connector (TOP_FAN) 20 processor socket21 processor release latch 22 processor-fan connector (CPU_FAN)23 coin-cell battery (CMOS BATTERY) 24 memory-module slot (DIMM3)25 memory-module slot (DIMM1) 26 memory-module slot (DIMM4)27 memory-module slot (DIMM2)12 Technical overview
