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Chapter 4: Motherboard Connections
SuperServer 5019P-MT/MTR User's Manual
Power LED/Speaker
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
JD1_PIN1
2
FP_PWR_LED
3
FP_PWR_LED
Speaker Connector
Pin Definitions
Pin#
Signal
4
P5V
5
Key
6
R_SPKPIN_N
7
R_SPKPIN
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
Overheat LED
Pin Definitions
Pin#
Signal
1
Pull high to +3.3V power through 330-ohm resistor
2
OH Active
Intel RAID Key Header
Pin Definitions
Pin#
Defintion
1
GND
2
PU 3.3V Stdby
3
GND
4
PCH RAID KEY
Intel RAID Key Header
The JRK1 header allows the user to enable RAID functions. Refer to the table below for pin
definitions.
Power SMB (I
2
C) Header
The Power System Management Bus (I
2
C) connector (JPI
2
C1) monitors the power supply,
fan, and system temperatures. Refer to the table below for pin definitions.
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PMBUS_Alert
4
Ground
5
+3.3V
4-pin BMC External I
2
C Header
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect the appropriate
cable here to use the IPMB I
2
C connection on your system. Refer to the table below for pin
definitions.
External I
2
C Header
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to inform you of a chassis intrusion when the chassis is opened. Refer to
the table below for pin definitions.
Chassis Intrusion
Pin Definitions
Pin#
Definition
1
Intrusion Input
2
Ground
NVMe I
2
C Header
Connector JNVI
2
C1 is a management header for the Supermicro AOC NVMe PCI-E peripheral
cards. Please connect the I
2
C cable to this connector.
VRM SMBus Header
JVRM1 is a voltage regulator module (VRM) SMBus header. Use this header to program the
CPU and memory VRM controllers.
