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Internal I/O Connectors
X
Cooling Fan Connectors
System Fan 1 (PWM)
CPU Fan (PWM)
JP4
CPU FAN
DDR4_1
USB7/8
2
4
1
System
1
+12V Power
1
PS2
1
5
Fan 1
8
5
2
6
JP2
Battery
1
5
2
6
JP3
VGA
1
5
2
6
COM 1
Socket LGA1151
JP1
1
5
HDMI
DP++
LAN 2
USB3_1/2
USB2_1/2
LAN 1
USB3_3/4
USB2_3/4
1
JP27
Mic-in
M.2 M Key
Line-out
Line-in (opt.)
PCIe 1 (PCIe x16)
DDR4_2
1
2
LAN LED
PCI 1
7
8
Intel
1
10
USB2_5/6
PCIe 2 (PCIe x4)
USB3_5/6
Front Audio
Q470E/H420E
20
11
1
2
PCI 2
9
10
JP26
S/PDIF
PCI 3
1
2
6
PCI 4
1
5
JP23
1
5
1
PCI 5
Buzzer
6
2
5
1
6
2
5
1
JP6
2
10
1
10
1
6
2
2
2
5
1
1
1
1
1
1
1
JP7
1
9
1
9
11
6
2
Digital I/O
JP11/12/13/14/15
DIO
COM5
COM6
USB2_
USB2_10
Power
9/14
These fan connectors are used to connect cooling fans. The cooling fans will provide adequate
airflow throughout the chassis to prevent overheating the CPU and system board components.
„ 4-pin Fan Pin Assignment
Pin Assignment
1
Ground
2
12V
3
RPM
4
Control
User's Manual | CMS631
DDR4_3
1
14
13
LPC
2
1
12
24
„ CPU Fan
ATX Power
1
13
1
2
Front
Panel
11
SPI Flash
BIOS
10
USB2
2
1
11/12
DDR4_4
1
SATA 0
SATA 1
(R0)
(R1)
SATA 2
SATA 3
(R2)
(R3)
JP28
SATA 4
1
1
(R4)
1
„ System Fan
CN37
6
1
1
M.2 M Key
JP24
SATA 5
(R5)
M.2 E Key
2230
9
(Opt.)
COM4
System Fan 2 (PWM)
2
1
JP10
SDJ2
JP8
System Fan 2
1
2
2
1
1
9
1
9
COM2
COM3
System Fan 3
„ 3-pin Fan Pin Assignment
Pin Assignment
1
GND
2
PWM
3
TACH
Internal I/O Connectors
X
Power Connector
GND
4
1
„ ATX 8-pin Power Connectors
8
5
+12V
JP4
CPU FAN
DDR4_1
DDR4_3
USB7/8
2
4
1
System
+12V Power
1
1
PS2
1
5
Fan 1
8
5
2
6
JP2
Battery
1
5
2
6
JP3
VGA
1
5
2
6
14
13
COM 1
Socket LGA1151
JP1
LPC
1
5
2
1
HDMI
DP++
LAN 2
USB3_1/2
USB2_1/2
LAN 1
USB3_3/4
USB2_3/4
1
SPI Flash
JP27
Mic-in
BIOS
M.2 M Key
Line-out
Line-in (opt.)
PCIe 1 (PCIe x16)
DDR4_2
DDR4_4
1
2
LAN LED
PCI 1
SATA 0
7
8
(R0)
Intel
1
10
USB2_5/6
SATA 2
PCIe 2 (PCIe x4)
USB3_5/6
Front Audio
(R2)
Q470E/H420E
20
11
JP28
1
2
PCI 2
1
1
9
10
1
CN37
JP26
S/PDIF
6
PCI 3
1
1
M.2 M Key
JP24
1
2
6
M.2 E Key
2230
PCI 4
1
5
(Opt.)
JP23
5
1
1
JP10
Buzzer
PCI 5
6
2
SDJ2
5
1
JP8
6
2
5
1
1
JP6
2
10
1
10
1
6
2
2
2
2
2
5
1
1
1
1
1
1
JP7
1
9
1
9
1
1
9
1
9
11
6
2
Digital I/O
JP11/12/13/14/15
DIO
COM5
COM6
USB2_
USB2_10
COM2
COM3
Power
9/14
Use a power supply that complies with the ATX12V Power Supply Design Guide Version 1.1. An
ATX12V power supply unit has a standard 24-pin ATX main power connector that must be in-
serted into the 24-pin connector. The 8-pin +12V power connector enables the delivery of more
+12VDC current to the processor's Voltage Regulator Module (VRM).
The power connectors from the power supply unit are designed to fit the 24-pin and 8-pin con-
nectors in only one orientation. Make sure to find the proper orientation before plugging the
connectors.
The system board requires a minimum of 300 Watt power supply to operate. Your system con-
figuration (CPU power, amount of memory, add-in cards, peripherals, etc.) may exceed the mini-
mum power requirement. To ensure that adequate power is provided, we strongly recommend
that the system is supplied with a minimum of 400 Watt power.
Important:
Insufficient power supplied to the system may result in instability or malfunction
of the add-in boards and peripherals. Calculating the system's approximate power
usage is important to ensure that the power supply meets the system's consump-
tion requirements.
Chapter 2
HARDWARE INSTALLATION
12 24
+3.3V
GND
+12V
+5V
+12V
+5V
+5VSB
+5V
12
24
PWR_OK
NC
ATX Power
GND
GND
+5V
GND
1
13
1
2
Front
GND
GND
Panel
11
+5V
PS_ON#
10
GND
GND
USB2
2
1
11/12
+3.3V
-12V
SATA 1
+3.3V
+3.3V
(R1)
1 13
SATA 3
(R3)
SATA 4
(R4)
„ ATX 24-pin Power
Connector
SATA 5
(R5)
9
COM4
2
1
System Fan 2
1
System Fan 3
24
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