Chapter 2 - Hardware Installation; System Board Layout - DFI COM331-B User Manual

Chapter 2 - Hardware Installation

System Board Layout

Thermal Trigger
Buzzer
(J25)
USB 3.0
(0-1)
1
1
Fintek
USB 0-1
F71879
1
power select
(JP5)
Chassis
COM1
intrusion
VGA
Wake-up test
(J24)
DP1
USB 4-7
USB 2.0
power select
(JP4)
(4-5)
1
PCIe x16 select
(JP15)
DP2
USB 2-3
USB 2.0
power select
1
(JP8)
(6-7)
1
SATA 3.0
SATA 0
LAN
USB 3.0
SATA 1
(2-3)
SATA 2
Line-in
SATA 3
Line-out
Mic-in
Battery low test
1
(J23)
Realtek ALC886
Front audio
2 10
1 9
S/PDIF
1
BIOS Select
(JP14)
(JP3)
COM2 LPC
9 1
1
9
1
2 1
10 1
10 2
1
FWH Write Protect
(J21)
Super IO enable
BIOS
/Disable(JP9)
1
1
2
I C
1
D1
COM express connector
1
C1
B1
1
COM express connector
A1
1 SATA 2.0
Hardware Installation
BIOS Select
1
SIO Fan_1
Clear CMOS Battery
2
(JP11)
1
1
Standby
Power LED
VCC5_IN
Power Select (JP1)
2
1
D110
Serial Interface 0
1
C110
Serial Interface 1
B110
1
A110
LVDS LCD panel
SPI
40
Flash
39
BIOS
1 8
1
SM Bus
1
System Fan
SDIO
DP3
19
DIO
1
6
5
12
(Rx/Tx)
(Rx/Tx)
1
1
+12V Power
Backlight
1 2
power select(JP6)
2
1
1 2
Panel power
11 12
select(JP7)
Front Panel
5 6
Power
5
Reset
Mini PCIe
SIO Fan_2
1
2
11