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4-Pin External BMC I
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect a cable to
this header to use the IPMB I
definitions.
Fan Headers
There are three 4-pin fan headers (FAN–FAN2, FANA) on the motherboard. All these 4-pin
fan headers are backwards compatible with the traditional 3-pin fans. However, fan speed
control is available for 4-pin fans only by Thermal Management via the Hardware Monitoring
in the BIOS. Refer to the table below for pin definitions.
MH2
LED3
VGA
JPG1:VGA
1-2:ENABLE
2-3:DISABLE
Aspeed
2600
LEDT4
LEDT3
JMD1_SRW1
LEDT2
LEDT1
LAN3/4
JMD1:M.2-HC PCIe 4.0 X4/S-SATA 3.0
4
JMD1
1
P1_NVME0
JTPM1
JGP1
JL1
MH4
CHASSIS INTRUSION
C Header
2
C connection on your system. Refer to the table below for pin
2
External I
2
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
2.5 A/+12 V (Red)
3
Tachometer
4
PWM_Control
COM1
Intel
IPMI_LAN
X550
USB 2/3(3.0)
LAN1/2
CPU
JPV1
2
3
JPF1:
1-2:NORMAL
2-3:POWER FORCE ON
FAN2
JPF1
JF1:
PWR
X OH NIC2
HDD PWR
RST
NIC1
ON
FF
LED LED
JBT1
: CMOS Clear
39
C Header
1. 4-Pin External BMC I
Header
2. FAN1
MH1
3. FAN2
4. FANA
PJ1
LED1
JF1
MH3
Chapter 2: Installation
C
2
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