ASRock Z87M Extreme4 User Manual - Page 18
x 240-pin DDR3 DIMM Slots DDR3_A1, DDR3_B1
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No. Description 1 ATX 12V Power Connector (ATX12V1) 2 CPU Fan Connector (CPU_FAN1) 3 CPU Fan Connector (CPU_FAN2) 4 2 x 240-pin DDR3 DIMM Slots (DDR3_A1, DDR3_B1) 5 2 x 240-pin DDR3 DIMM Slots (DDR3_A2, DDR3_B2) 6 ATX Power Connector (ATXPWR1) 7 USB 3.0 Header (USB3_0_1) 8 SATA3 Connectors (SATA3_0_1) 9 SATA3 Connectors (SATA3_2_3) 10 SATA3 Connectors (SATA3_4_5) 11 Chassis Speaker Header (SPEAKER1) 12 Clear CMOS Jumper (CLRCMOS1) 13 Power LED Header (PLED1) 14 Infrared Module Header (IR1) 15 System Panel Header (PANEL1) 16 Chassis Fan Connector (CHA_FAN1) 17 USB 2.0 Header (USB4_5) 18 USB 2.0 Header (USB6_7) 19 TPM Header (TPMS1) 20 Chassis Intrusion Header (CI1) 21 COM Port Header (COM1) 22 Front Panel Audio Header (HD_AUDIO1) 23 Power Fan Connector (PWR_FAN1) 24 Chassis Fan Connector (CHA_FAN2) 12 English