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LED1
Internal I/O Connectors
X
LAN1
LAN2
Digital I/O
1
1
Heater and Switch
CPU Fan
1
The 8-bit Digital I/O (DIO) connector allows for input/output signals of digital logical states de-
fined by voltage levels.
DDR4_1 SODIMM
Pin Assignment
1
DIO_6
3
DIO_4
5
DIO_2
7
DIO_0
9
GND
User's Manual | CS551
USB 3/4 (left), 1/2 (right)
(USB 3.1
)
Note
DP++1/2
1
LVDS
2
9
1
USB 5/6 (USB 2.0)
10
2
SPI Flash BIOS
10
DIO
2
„ Digital I/O Pin Assignment
SMBus
Pin Assignment
2
DIO_7
4
DIO_5
6
DIO_3
8
DIO_1
10
5VSB
Internal I/O Connectors
X
SMBus
10
9
Front
CPU Fan
Audio
1
39
2
1
6
5
40
9
2
1
1
COM1
6
5
10
2
2
1
Buzzer
9
JP1
1
1
1
1
M.2
M Key
1
The SMBus (System Management Bus) connector is used to connect the SMBus device. It is a
multiple device bus that allows multiple chips to connect to the same bus and enable each one
1
to act as a master by initiating data transfer.
5
1
Mini PCIe
2
HARDWARE INSTALLATION
JP3
JP5
DDR4_1 SODIMM
LVDS
Backlight
Power
SATA 3.0
SATA
Power
JP2
1
Battery
„ SMBus Pin Assignment
Pin Assignment
Pin Assignment
1
3V3SB
2
3
SMBus_Clock
4
5
SMBus_Alert
6
Buzzer
10
9
Chapter 2
DIO
JP1
2
1
M.2
M Key
5
1
Mini PCIe
2
SMBus
GND
SMBus_DATA
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24
1
1
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