37
Chapter 2: Installation
Fan Headers
There are four 4-pin fan headers on the motherboard. Pins 1-3 are backward compatible with
traditional 3-pin fans. The onboard fan speeds are controlled by Thermal Management (via
Hardware Monitoring) in the BIOS. When using Thermal Management setting, please use all
3-pin fans or all 4-pin fans.
Headers
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
+12V (Red)
3
Tachometer
4
PWM Control
Speaker Header
On the JD1 header, pins 1-4 are for the internal speaker.
Speaker Header
Pin Definitions
Pin Setting Definition
Pins 1-4
Speaker
COM1
BIOS LICENSE
BAR CODE
A2SDi-LN4F
REV:1.02
DESIGNED IN USA
JPH1
1
JGP1
1
JBT1
JSMB1
JD1
C
A
LEDT1
C
A
LEDT3
LEDT2
A
C
LEDT4
A
C
LED1
1
JTGLED2
1
JLANLED1
1
JTGLED1
OSC1
JI2C2
1
JI2C1
1
JPTG1
JPG1
JPL1
1
JPME2
1
JWD1
JBR1
JPV1
BT1
SRW1
JL1
1
JRT3
JR
T4
LED2
A
C
C
A
LEDM1
JMP1
PRESS FIT
1
JMD1
SRW4
SRW3
1
JSD1
FANA
1
FAN3
1
1
FAN1
1
FAN2
JPI2C1
I-SATA1
I-SATA0
I-SATA3
I-SA
TA2
JF1
1
JTPM1
JPW1
PCI-E 3.0 X4 / I-SATA
IPMI LAN
MANUFACTURING MODE
LAN7
LAN8
LAN1
LAN3
DIMMB1
DIMMB2
DIMMA2
DIMMA1
AL
W
AYS POPULA
TE DIMMx1 FIRST
Intel Atom SoC
FCBGA1310
CPU
USB4/5
USB2/3
USB0/1 (3.0)
LAN4
LAN2
LAN5
LAN6
VGA
SUPERDOM
PWR
ON
JF1
CPU SLOT7 PCI-E 3.0 X4
RST
FAIL
PS
LED
UID
NIC
2
NIC
1
LED
HDD
PWR
LED
1-2:ENABLE
2-3:DISABLE
JPG1:
2-3:DISABLE 1-2:ENABLE
VGA
JPL1:
2-3:DISABLE
1-2:ENABLE
JI2C2:
1-2:ENABLE
2-3:DISABLE
JI2C1:
UID
2-3:ME
1-2:NORMAL
JPME2:
JPH1
Intel
i350-AM4
BMC
AST2400
1. FAN1
2. FAN2
3. FAN3
4. FANA
5. Speaker Header
1
2
3
5
4
