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Motherboard Layout
USB 3.0
T: USB4
B: USB5
42
USB 3.0
T: USB0
B: USB1
41
40
39
38
37
36
35
34
1
Power Fan Connector (PWR_FAN1)
2
ATX 12V Power Connector (ATX12V1)
3
CPU Heatsink Retention Module
4
CPU Socket
5
CPU Fan Connector (CPU_FAN1)
6
CPU Fan Connector (CPU_FAN2)
7
2 x 240-pin DDR3 DIMM Slots
(Dual Channel A: DDR3_A1, DDR3_B1; Blue)
8
2 x 240-pin DDR3 DIMM Slots
(Dual Channel B: DDR3_A2, DDR3_B2; White)
9
ATX Power Connector (ATXPWR1)
10
Clear CMOS Jumper (CLRCMOS1)
11
Southbridge Controller
12
SATA3 Connector (SATA3_5, White)
13
SATA3 Connector (SATA3_4, White)
14
SATA3 Connector (SATA3_3, White)
15
SATA3 Connector (SATA3_1, White)
16
SATA3 Connector (SATA3_2, White)
17
Dr. Debug (LED)
18
Power Switch (PWRBTN)
19
Reset Switch (RSTBTN)
20
System Panel Header (PANEL1, White)
21
Chassis Speaker Header (SPEAKER 1, White)
2
1
2
3
4
5
6
22.4cm (8.8-in)
PWR_FAN1
CPU_FAN2
CPU_FAN1
USB 2.0
T: USB2
B: USB3
Top:
RJ-45
LAN
CHA_FAN3
CHA_FAN2
A75 Pro4
PCIE1
Dual Graphics
PCIE2
AUDIO
CODEC
DX11
CMOS
BATTERY
PCIE3
USB 3.0
PCI1
1
X
CLRCMOS1
Fast USB
ErP/EuP Ready
PCIE4
32Mb
BIOS
PCI2
1394a
RoHS
PCI3
COM1
USB6_7
FRONT_1394
USB10_11
USB8_9
HD_AUDIO1
1
HDMI_SPDIF1
1
1
1
1
1
1
CIR1
33
32
31
30
29
28
27
26
25
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
ASRock A75 Pro4 Motherboard
7
8
9
10
AMD
11
A75 FCH
(Hudson-D3)
Chipset
SATA3_5
12
13
14
15
16
Dr.
17
Debug
18
19
PLED1
SPEAKER1
PWRBTN
RSTBTN
1
1
PLED PWRBTN
IR1
CHA_FAN1
1
1
HDLED
RESET
PANEL 1
24
23
22
21
20
Chassis Fan Connector (CHA_FAN1)
Infrared Module Header (IR1)
Power LED Header (PLED1)
USB 2.0 Header (USB10_11, Blue)
SPI Flash Memory (32Mb)
USB 2.0 Header (USB8_9, Blue)
USB 2.0 Header (USB6_7, Blue)
Consumer Infrared Module Header (CIR1)
COM Port Header (COM1)
HDMI_SPDIF Header (HDMI_SPDIF1, White)
Front Panel IEEE 1394 Header
(FRONT_1394, White)
Front Panel Audio Header (HD_AUDIO1, White)
PCI Slot (PCI3)
PCI Slot (PCI2)
PCI Express 2.0 x16 Slot (PCIE4; Blue)
PCI Slot (PCI1)
PCI Express 2.0 x1 Slot (PCIE3; White)
PCI Express 2.0 x16 Slot (PCIE2; Blue)
PCI Express 2.0 x1 Slot (PCIE1; White)
Chassis Fan Connector (CHA_FAN2)
Chassis Fan Connector (CHA_FAN3)
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