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1.3 Motherboard Layout
1 CPU Fan Connector (CPU_FAN1)
2 1155-Pin CPU Socket
3 ATX 12V Power Connector (ATX12V1)
4 2 x 240-pin DDR3 DIMM Slots
(DDR3_A1, DDR3_B1, Black)
5 ATX Power Connector (ATXPWR1)
6 USB 3.0 Header (USB3_2_3, Black)
7 Intel B75 Chipset
8 SPI Flash Memory (64Mb)
9 SATA3 Connector (SATA3_0, Gray)
10 SATA2 Connector (SATA2_5, Black)
11 SATA2 Connector (SATA2_2, Black)
12 SATA2 Connector (SATA2_4, Black)
13 Chassis Fan Connector (CHA_FAN2)
14 SATA2 Connector (SATA2_3, Black)
15 SATA2 Connector (SATA2_1, Black)
16 System Panel Header (PANEL1, Black)
17 USB 2.0 Header (USB6_7, Black)
18 USB 2.0 Header (USB4_5, Black)
19 Consumer Infrared Module Header
(CIR1, Gray)
20 Infrared Module Header (IR1, Black)
21 Chassis Speaker Header (SPEAKER1, Black)
22 Clear CMOS Jumper (CLRCMOS1)
23 Chassis Intrusion Header (CI1)
24 Power LED Header (PLED1)
25 PCI Slots (PCI1-2, Black)
26 PCI Express 2.0 x1 Slot (PCIE4, Black)
27 PCI Express 2.0 x16 Slot (PCIE3, Black)
28 PCI Express 2.0 x1 Slot (PCIE2, Black)
29 Front Panel Audio Header (HD_AUDIO1, Black)
30 HDMI_SPDIF Header (HDMI_SPDIF1, Black)
31 PCI Express 3.0 x16 Slot (PCIE1, Black)
32 Power Fan Connector (PWR_FAN1)
33 Chassis Fan Connector (CHA_FAN1)