ASRock 990FX EXTREME3 [12/68] Motherboard layout

1.3 Motherboard Layout

1 HDMI_SPDIF Header (HDMI_SPDIF1, Black) 19 System Panel Header (PANEL1, Black)

2 ATX 12V Power Connector (ATX12V1) 20 Chassis Fan Connector (CHA_FAN2)

3 CPU Heatsink Retention Module 21 Chassis Fan Connector (CHA_FAN1)

4 CPU Fan Connector (CPU_FAN1) 22 Clear CMOS Jumper (CLRCMOS1)

5 CPU Fan Connector (CPU_FAN2) 23 USB 2.0 Header (USB4_5, Black)

6 AM3+ CPU Socket 24 USB 2.0 Header (USB8_9, Black)

7 2 x 240-pin DDR3 DIMM Slots 25 USB 2.0 Header (USB10_11, Black)

(Dual Channel B: DDR3_A1, DDR3_B1; Black) 26 Serial Port Connector (COM1)

8 2 x 240-pin DDR3 DIMM Slots 27 Infrared Module Header (IR1)

(Dual Channel B: DDR3_A2, DDR3_B2; Black) 28 Front Panel Audio Header

9 ATX Power Connector (ATXPWR1) (HD_AUDIO1, Black)

10 Chassis Fan Connector (CHA_FAN3) 29 PCI Express 2.0 x16 Slot

11 Northbridge Controller (PCIE4; Black)

12 SATA3 Connector (SATA3_5, Gray) 30 PCI Slot (PCI2)

13 SATA3 Connectors (SATA3_3_4, Gray) 31 PCI Express 2.0 x16 Slot

14 SATA3 Connectors (SATA3_1_2, Gray) (PCIE3; Black)

15 Southbridge Controller 32 PCI Slot (PCI1)

16 SPI Flash Memory (32Mb) 33 PCI Express 2.0 x16 Slot

17 Power LED Header (PLED1) (PCIE2; Black)

18 Chassis Speaker Header 34 PCI Express 2.0 x1 Slot (PCIE1; Black)

(SPEAKER 1, Black) 35 Power Fan Connector (PWR_FAN1)