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Power LED Indicator/Speaker Header
Pins 1-3 of JD1 are used for power LED indication, and pins 4-7 are for the speaker. Please
note that the speaker connector pins (4-7) are used with an external speaker. If you wish to
use the onboard speaker, you should close pins 6-7 with a cap. Refer to the tables below
for pin definitions.
PWR LED Connector
Pin Definitions
Pin#
Signal
1
VCC
2
FP_PWR_LED
3
FP_PWR_LED
Overheat/Fan Fail LED Header
The JOH1 header is used to connect an LED indicator to provide warnings of chassis
overheating and fan failure. This LED will blink when a fan failure occurs. Refer to the tables
below for pin definitions.
Overheat LED Header
Status
State
Definition
Solid
Overheat
Blinking
Fan Fail
BMC
LEDBMC
MH11
1
MH1
1
SP1
JD1
BT1
JI2C_FP1
1
USB 2/3
USB 4/5
M.2-P
LEDSSD1
JBT1
USB 8/9(3.0)
IPMI CODE
BIOS
MAC CODE
LICENSE
BAR CODE
PCH
FANB
JL1
I-SATA1 I-SATA0
VGA
LEDUID
JUIDB1
LAN
USB 6/7(3.0)
LAN
CTRL
CTRL
LAN2
LAN1
OPEN 1st
CPU
CLOSE 1st
2
JF1
USB 10(3.0)
JRK1
1
JTPM1
FANA
51
Speaker Connector
Pin Definitions
Pin#
Signal
4
P5V
5
Key
6
R_SPKPIN_N
7
R_SPKPIN
Overheat LED
Pin Definitions
Pin#
Signal
Pull high to +3.3V
1
power through 330-ohm
resistor
2
OH Active
COM1
1. Power LED Indicator/Speaker
FAN5
Header
IPMI_LAN
USB 0/1
2. Overheat/Fan Fail LED Header
FAN2
FAN1
Chapter 2: Installation
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