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