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Internal I/O Connectors
X
Expansion Slots
a
PCIe 1 (PCIe x16)
b
PCI1
c
PCIe 2 (PCIe x4)
d
PCI2
e
PCI3
f
PCI4
g
PCI5
a
h
M.2-M
b
i
M.2-E
c
d
e
f
g
PCI Express x16 Slot
Install a PCI Express x16 graphics card that complies to the PCI Express specifications into the
PCI Express x16 slot. To install a graphics card into the x16 slot, align the graphics card to the
socket and perpendicularly to the board, be cautious in aligning the locations of notch and key,
and then press the card down firmly until it is completely seated. The retaining clip of the slot
will close up automatically to hold the graphics card in place.
PCI Express x4 Slots
Install PCI Express cards such as network cards or other expansion cards
PCI Slots
Install PCI cards for other expansion demands.
M.2 Socket
The M.2 socket is the Next Generation Form Factor (NGFF) which is designed to support mul-
tiple modules and make the M.2 more suitable in application for solid-state storage.
User's Manual | CMS631
JP4
CPU FAN
DDR4_1
DDR4_3
USB7/8
2
System
4
1
1
1
+12V Power
PS2
1
5
Fan 1
8
5
2
6
JP2
Battery
1
5
2
6
JP3
1
5
VGA
2
6
14
13
Socket LGA1151
COM 1
JP1
1
5
LPC
2
1
12
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)
Front Audio
USB3_5/6
(R2)
Q470E/H420E
20
11
JP28
1
2
1
PCI 2
1
9
10
1
CN37
JP26
S/PDIF
6
PCI 3
1
M.2 M Key
1
JP24
1
M.2 E Key
2
6
2230
PCI 4
1
5
(Opt.)
JP23
1
5
1
JP10
PCI 5
Buzzer
6
2
SDJ2
5
1
JP8
6
2
1
5
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
Internal I/O Connectors
X
Installing the M.2 Module
Before installing the M.2 module into the M.2 socket, please make sure that the following
safety cautions are well-attended.
1. Make sure the PC and all other peripheral devices connected to it has been powered
24
down.
ATX Power
2. Disconnect all power cords and cables.
1
13
1
2
Front
Panel
11
3. Locate the M.2 socket on the system board
10
USB2
1
2
11/12
4. Make sure the notch on card is aligned to the key on the socket.
SATA 1
(R1)
5. Make sure the standoff screw is removed from the standoff.
SATA 3
(R3)
SATA 4
(R4)
h
SATA 5
(R5)
9
i
COM4
2
1
System Fan 2
1
System Fan 3
M.2 Module
Notch
HARDWARE INSTALLATION
Expansion Slots
X
Stand-off
Chapter 2
M.2 Socket
Key
28
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