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Chapter 3 Motherboard Connections
Chapter 3
Motherboard Connections
This section describes the connections on the X11SCV-Q motherboard and provides pinout
definitions. Note that depending on how the system is configured, not all connections are
required. The LEDs on the motherboard are also described here. A motherboard layout
indicating component locations may be found in Chapter 1.
Please review the safety precautions in Appendix B before installing or removing components.
3.1 Power Connections
Main ATX Power Supply Connector
The primary power supply connector (JPW1) meets the ATX SSI EPS 24-pin specification.
JPV1 is the 12V DC power connector that provides alternative power for special enclosure
when the 24-pin ATX power is not in use. JPH1 is a 4-pin HDD power connector that provides
power to onboard HDD devices.
ATX Power 24-pin Connector
Pin Definitions
Pin#
Definition
Pin#
Definition
13
+3.3V
1
+3.3V
14
-12V
2
+3.3V
15
COM
3
COM
16
PS_ON
4
+5V
17
COM
5
COM
18
COM
6
+5V
19
COM
7
COM
20
Res (NC)
8
PWR_OK
21
+5V
9
5VSB
22
+5V
10
+12V
23
+5V
11
+12V
24
COM
12
+3.3V
Required Connection
4-pin HDD Power
Pin Definitions
Pin#
Definition
1
12V
2-3
Ground
4
5V
+12V 8-pin Power
Pin Definitions
Pin#
Definition
1-4
Ground
5-8
+12V
1
4
8
5
JPV1
BT1
G3
17
1
9
24
16
8
EDP1
44
G9
G11
G7
G1
G8
G10
FAN2
FAN3
FAN1
J3
2
74
75
2
9
2
A17
A19
A18
A1
A2
A4
B1
B2
B19
B20
24
23
25
22
5
2
3
1
4
JBT1
1
5
9
6
18
14
JCOM3
JCOM2
JD1
JGP1
JGP2
JPME2
JP
AC1
JI2C2
JI2C1
JWD1
JL1
4
9
5
10
18
19
11
1
LAN1
4
9
5
10
18
23
22
1
LAN2
JPH1
JPT1
JPL2
JPL1
JPW1
12
LED1
A
C
MH4
MH3
MH2
MH1
SR
W3
SR
W1
SR
W2
B12
B1
B11
B2
A1
A12
B12
B1
B11
B2
A1
A12
I-SA
TA2
I-SA
TA3
I-SA
TA4
I-SA
TA1
I-SA
TA0
7
JSD1
JPV1
5
4
8
JF1
1
2
19
J11
2
1
J10
2
1
J9
CPU
MAC CODE
BAR CODE
BIOS LICENSE
HD AUDIO
POWER
SA
TA
DOM
SUPERDOM
NON-ECC DDR4 SO-DIMM
CNV
i
JMD1 - M.2: PCIE3.0x1
JMD2 - M.2: PCIE3.0x4
USB 6/7 (3.1)
Rev:1.02
DVI-D
COM1/2
1-2:ENABLE
2-3:DISABLE
2-3:DISABLE
1-2:ENABLE
JPL2:LAN2
JPL1:LAN1
20
21
22
23
20
21
19
11
HDMI2.0/DP
COM 3/4
COM 5/6
20
JTPM1
USB 8/9 (3.1)
USB 2/3
USB 0/1
CPU1 SLOT7 PCI-E 3.0x16
10
10
15
DIMMB1
DIMMA1
DESIGNED IN USA
X1
1SCV
-Q
AUDIO FP
LED
PWR
1
LED
HDD
NIC
2
NIC
OH/FF
X
RST
ON
JF1
PWR
10
11
USB 4/5 (3.1)
NON-ECC DDR4 SO-DIMM
PCH
1
4
JPH1
BT1
G3
17
1
9
24
16
8
EDP1
44
G9
G11
G7
G1
G8
G10
FAN2
FAN3
FAN1
J3
2
74
75
2
9
2
A17
A19
A18
A1
A2
A4
B1
B2
B19
B20
24
23
25
22
5
2
3
1
4
JBT1
1
5
9
6
18
14
JCOM3
JCOM2
JD1
JGP1
JGP2
JPME2
JP
AC1
JI2C2
JI2C1
JWD1
JL1
4
9
5
10
18
19
11
1
LAN1
4
9
5
10
18
23
22
1
LAN2
JPH1
JPT1
JPL2
JPL1
JPW1
12
LED1
A
C
MH4
MH3
MH2
MH1
SR
W3
SR
W1
SR
W2
B12
B1
B11
B2
A1
A12
B12
B1
B11
B2
A1
A12
I-SA
TA2
I-SA
TA3
I-SA
TA4
I-SA
TA1
I-SA
TA0
7
JSD1
JPV1
5
4
8
JF1
1
2
19
J11
2
1
J10
2
1
J9
CPU
MAC CODE
BAR CODE
BIOS LICENSE
HD AUDIO
POWER
SA
TA
DOM
SUPERDOM
NON-ECC DDR4 SO-DIMM
CNV
i
JMD1 - M.2: PCIE3.0x1
JMD2 - M.2: PCIE3.0x4
USB 6/7 (3.1)
Rev:1.02
DVI-D
COM1/2
1-2:ENABLE
2-3:DISABLE
2-3:DISABLE
1-2:ENABLE
JPL2:LAN2
JPL1:LAN1
20
21
22
23
20
21
19
11
HDMI2.0/DP
COM 3/4
COM 5/6
20
JTPM1
USB 8/9 (3.1)
USB 2/3
USB 0/1
CPU1 SLOT7 PCI-E 3.0x16
10
10
15
DIMMB1
DIMMA1
DESIGNED IN USA
X1
1SCV
-Q
AUDIO FP
LED
PWR
1
LED
HDD
NIC
2
NIC
OH/FF
X
RST
ON
JF1
PWR
10
11
USB 4/5 (3.1)
NON-ECC DDR4 SO-DIMM
PCH