ASRock 939A790GMH [2/129] Motherboard layout motherboard layout motherboard layout motherboard layout motherboard layout

ASRock 939A790GMH Motherboard

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Motherboard LayoutMotherboard Layout

Motherboard Layout

1 PS2_USB_PW1 Jumper 19 Third SATAII Connector (SATAII_3 (PORT 2))

2 ATX 12V Power Connector (ATX12V1) 20 Secondary SATAII Connector

3 CPU Heatsink Retention Module (SATAII_2 (PORT 1))

4 939-Pin CPU Socket 21 Primary SATAII Connector

5 CPU Fan Connector (CPU_FAN1) (SATAII_1 (PORT 0))

6 2 x 184-pin DDR DIMM Slots 22 Chassis Speaker Header

(Dual Channel A: DDR1, DDR2; Blue) (SPEAKER 1, White)

7 2 x 184-pin DDR DIMM Slots 23 System Panel Header (PANEL1, White)

(Dual Channel B: DDR3, DDR4; Black) 24 SPI Flash Memory (8Mb)

8 ATX Power Connector (ATXPWR1) 25 Print Port Header (LPT1, White)

9 Primary IDE Connector (IDE1, Blue) 26 Floppy Connector (FLOPPY1)

10 USB 2.0 Header (USB8_9, Blue) 27 Serial Port Connector (COM1)

11 USB 2.0 Header (USB6_7, Blue) 28 Internal Audio Connector: CD1 (Black)

12 USB 2.0 Header (USB4_5, Blue) 29 Front Panel Audio Header

13 Power Fan Connector (PWR_FAN1) (HD_AUDIO1, White)

14 Clear CMOS Jumper (CLRCMOS1) 30 Infrared Module Header (IR1)

15 Southbridge Controller 31 Northbridge Controller

16 Chassis Fan Connector (CHA_FAN1) 32 PCI Express 2.0 x16 Slot (PCIE2; Blue)

17 Fifth SATAII Connector (SATAII_5 (PORT 4)) 33 PCI Express 2.0 x1 Slot (PCIE1; White)

18 Fourth SATAII Connector (SATAII_4 (PORT 3)) 34 Northbridge Controller