MSI X 370 Manual

31Overview of Components
S ATA1~ 6: S ATA 6 G b/s C o n n e c to r s
These connectors are SATA 6Gb/s interface ports. Each connector can connect to one 
SATA device.
S ATA 5
S ATA 1 S ATA 6
S ATA 2
S ATA 3 S ATA 4
 Important
 
yPlease do not fold the SATA cable at a 90-degree angle. Data loss may result during 
transmission otherwise.
 
ySATA cables have identical plugs on either sides of the cable. However, it is 
recommended that the flat connector be connected to the motherboard for space saving...

32Overview of Components
M.2 slots with examples of various combination possibilities
PCIe
S ATA
S ATAPCIe
S ATA
PCIe
PCIe
S ATA
S ATA
PCIeS ATA 2
S ATA 2
S ATA 2
S ATA 2
S ATA 2
S ATA 2
S ATA 3
S ATA 6
S ATA 6
S ATA 6
S ATA 6
S ATA 6
S ATA 6S ATA 5
S ATA 5
S ATA 5
S ATA 5
S ATA 5
S ATA 5 S ATA 1
S ATA 1
S ATA 1
S ATA 1
S ATA 1
S ATA 1
S ATA 4
S ATA 4
S ATA 4
S ATA 3 S ATA 4
S ATA 4
S ATA 4 S ATA 3
S ATA 3
2xM.2 PCIe SSDs + 6xSATA HDDs
2xM.2 SATA SSDs + 5xSATA HDDs
1xM.2 SATA SSD + 6xSATA HDDs
1xM.2 PCIe...

33Overview of Components
24
131
12
ATX_PWR1 1
+3.3V 13+3.3V
2 +3.3V 14-12V
3 Ground 15Ground
4 +5V 16PS-ON#
5 Ground 17Ground
6 +5V 18Ground
7 Ground 19Ground
8 PWR OK 20Res
9 5VSB 21+5V
10 +12V 22+5V
11 +12V 23+5V
12 +3.3V 24Ground
5
4 1
8
CPU_PWR1
1 Ground 5+12V
2 Ground 6+12V
3 Ground 7+12V
4 Ground 8+12V
 Important
Make sure that all the power cables are securely connected to a proper ATX power 
supply to ensure stable operation of the motherboard.
CPU_PWR1, ATX_PWR1: Power Connectors
These...

34Overview of Components
JUSB1~2: USB 2.0 Connectors
These connectors allow you to connect USB 2.0 ports on the front panel.
1 2 109
1 VCC 2VCC
3 USB0- 4USB1-
5 USB0+ 6USB1+
7 Ground 8Ground
9 No Pin 10NC
 Important
 
yNote that the VCC and Ground pins must be connected correctly to avoid possible 
damage.
 
yIn order to recharge your iPad,iPhone and iPod through USB ports, please install 
MSI® SUPER CHARGER utility.
JUSB3~4: USB 3.1 Gen1 Connectors
These connectors allow you to connect USB 3.1 Gen1...

35Overview of Components
CPU_FAN1, PUMP_FAN1, SYS_FAN1~4: Fan Connectors
Fan connectors can be classified as PWM (Pulse Width Modulation) Mode or DC Mode. 
PWM Mode fan connectors provide constant 12V output and adjust fan speed with 
speed control signal. DC Mode fan connectors control fan speed by changing voltage. 
When you plug a 3-pin (Non-PWM) fan to a fan connector in PWM mode, the fan speed 
will always maintain at 100%, which might create a lot of noise. You can follow the 
instruction below to...

36Overview of Components
JAUD1: Front Audio Connector
This connector allows you to connect audio jacks on the front panel.
1 2 109
1 MIC L 2Ground
3 MIC R 4NC
5 Head Phone R 6 MIC Detection
7 SENSE_SEND 8 No Pin
9 Head Phone L 10 Head Phone Detection
JCI1: Chassis Intrusion Connector
This connector allows you to connect the chassis intrusion switch cable. 
Normal
(default)Trigger the chassis  intrusion event
Using chassis intrusion detector
1. Connect the  JCI1 connector to the chassis intrusion switch/...

37Overview of Components
12
14
13
1 LPC Clock 2 3V Standby power
3 LPC Reset 4 3.3V Power
5 LPC address & data pin0 6 Serial IRQ
7 LPC address & data pin1 8 5V Power 9 LPC address & data pin2 10 No Pin
11 LPC address & data pin3 12 Ground 13 LPC Frame 14 Ground
JTPM1: TPM Module Connector
This connector is for TPM (Trusted Platform Module). Please refer to the TPM security 
platform manual for more details and usages.
JFP1, JFP2: Front Panel Connectors
These connectors connect to the switches and LEDs on...

38Overview of Components
JBAT1: Clear CMOS (Reset BIOS) Jumper
There is CMOS memory onboard that is external powered from a battery located on 
the motherboard to save system configuration data. If you want to clear the system 
configuration, set the jumpers to clear the CMOS memory. 
Keep Data(default)Clear CMOS/ Reset BIOS
Resetting BIOS to default values
1. Power off the computer and unplug the power cord.
2.
 
Use a jumper c
 ap to short JBAT1 for about 5-10 seconds.
3.
 
Remo
 ve the jumper cap from...

39Overview of Components
1
JLED1Extension cable
5050 LED strip
JLED1: RGB LED strip connector
This connector allows you to connect the extended 5050 RGB LED strips. 
 Important
 
yThis connector supports 5050 RGB multi-color LED strips (12V/G/R/B) with the 
maximum power rating of 3A (12V). Please keeping the LED strip shorter than 2 meters to prevent dimming.
 
yAlways turn off the power supply and unplug the power cord from the power outlet 
before installing or removing the RGB LED strip.
 
yPlease...

40Onboard LEDs
Onboard LEDs
PCI_E2 LED
PCI_E4 LED
PCI_E6 LED
DIMM LEDs
These LEDs indicate the memory modules are installed.
GPU LED
This LED indicates the CPU’s iGPU is not det ected and you need to install a graphic 
card.
PCIe x16 slot LEDs
These LEDs indicate the PCIe x16 slots status. 
LED Color PCIe slot status
Red x16 mode
White x8, x4, x1 mode
GPU LED DIMM LEDs
EZ Debug LED
These LEDs indicate the debug status of the motherboard. 
 CPU - indicates CPU is not detected or fail.
 DRAM - indicates...