MSI X 370 Manual

							21Rear I/O Panel
Realtek HD Audio Manager
After installing the Realtek HD Audio driver, the Realtek HD Audio Manager icon will 
appear in the system tray. Double click on the icon to launch.
Jack Status
Device 
Selection
Connector 
Strings
Profiles
Main Volume Application 
Enhancement
Advanced 
Settings
 
y Device Selection - allows you to select a audio output source to change the related 
options. The check sign indicates the devices as default.
 
y Application Enhancement - the array of options will provide you a complete 
guidance of anticipated sound effect for both output and input device.
 
y Main Volume - controls the volume or balance the right/left side of the speakers 
that you plugged in front or rear panel by adjust the bar.
 
y Profiles - toggles between profiles.
 
y Advanced Settings - provides the mechanism to deal with 2 independent audio 
streams.
 
y Jack Status - depicts all render and capture devices currently connected with your 
computer. 
 
y Connector Settings - configures the connection settings.
Auto popup dialog
When you plug into a device at an audio jack, a dialogue window will pop up asking you 
which device is current connected.
Each jack corresponds to its default setting as shown on the next page. 
						

							22Rear I/O Panel
AUDIO INPUTRear FrontSide Center/ Subwoofer
Audio jacks to headphone and microphone diagram
Audio jacks to stereo speakers diagram
Audio jacks to 7.1-channel speakers diagram
AUDIO INPUT     
						

							23Overview of Components
Overview of Components
SATA4 JSEL1
SATA3 SATA▼1▲2 SATA▼5▲6
CPU_FAN1
PUMP_FAN1
PCI_E1
PCI_E2
PCI_E3
PCI_E4
PCI_E5
PCI_E6 JTPM1 Processor 
Socket
CPU_PWR1
JBAT1M2_2 M2_1DIMMA1
SYS_FAN1
SYS_FAN3
DIMMA2
DIMMB1 DIMMB2
JUSB3
JUSB2
JUSB1
PWRLED1 JFP1
JFP2
DEMOLED1
JAUD1
SYS_FAN2
JLED1 ATX_PWR1 SYS_FAN4
JUSB4
JCI1 
						

							24Overview of Components
Component Contents
Port NamePort TypePage
CPU_FAN1, PUMP_FAN1, SYS_ FAN1~4 Fan Connectors
35
CPU_PWR1, ATX_PWR1 Power Connectors33
Processor Socket AM4 Socket25
DIMMA1, DIMMA2, DIMMB1,  DIMMB2 DIMM Slots
26
JAUD1 Front Audio Connector 36
JBAT1 Clear CMOS (Reset BIOS) Jumper 38
JCI1 Chassis Intrusion Connector 36
JFP1, JFP2 Front Panel Connectors 37
JLED1 RGB LED strip connector 39
JTPM1 TPM Module Connector 37
JUSB1~2 USB 2.0 Connectors 34
JUSB3~4 USB 3.1 Gen1 Connectors 34
M2_1~2 M.2 Slots (Key M) 30
PCI_E1~6 PCIe Expansion Slots 27
SATA1~6 SATA 6Gb/s Connectors 31 
						

							25Overview of Components
Processor Socket
Introduction to the AM4 CPU
The surface of the AM4 CPU has a 
yellow triangle to assist in correctly 
lining up the CPU for motherboard 
placement. The yellow triangle is 
the Pin 1 indicator.
 Important
 
yWhen changing the processor, the system configuration could be cleared and reset 
BIOS to default values, due to the AM4 processor ’s architecture.
 
yAlways unplug the power cord from the power outlet before installing or removing 
the CPU.
 
yWhen installing a CPU, always remember to install a CPU heatsink. A CPU heatsink 
is necessary to prevent overheating and maintain system stability.
 
yConfirm that the CPU heatsink has formed a tight seal with the CPU before booting 
your system.
 
yOverheating can seriously damage the CPU and motherboard. Always make sure 
the cooling fans work properly to protect the CPU from overheating. Be sure to apply an even layer of thermal paste (or thermal tape) between the CPU and the heatsink to enhance heat dissipation.
 
yIf you purchased a separate CPU and heatsink/ cooler, Please refer to the 
documentation in the heatsink/ cooler package for more details about installation.
 
yThis motherboard is designed to support overclocking. Before attempting to 
overclock, please make sure that all other system components can tolerate overclocking. Any attempt to operate beyond product specifications is not recommended. MSI
® does not guarantee the damages or risks caused by 
inadequate operation beyond product specifications. 
						

							26Overview of Components
DIMM Slots
DIMMA1DIMMB1
Channel AChannel B
DIMMA2DIMMB2
Memory module installation recommendation
DIMMB2DIMMB2DIMMB1DIMMA2DIMMA2DIMMA2DIMMA1
 Important
 
yAlways insert memory modules in the DIMMA2 slot first.
 
yDue to chipset resource usage, the available capacity of memory will be a little less 
than the amount of installed.
 
yBased on processor specification, the Memory DIMM voltage below 1.35V is 
suggested to protect the processor.
 
ySome memory modules may operate at a lower frequency than the marked value 
when overclocking due to the memory frequency operates dependent on its Serial Presence Detect (SPD). Go to BIOS and find the DRAM Frequency! to set the memory frequency if you want to operate the memory at the marked or at a higher frequency.
 
yIt is recommended to use a more efficient memory cooling system for full DIMMs 
installation or overclocking.
 
yThe stability and compatibility of installed memory module depend on installed CPU 
and devices when overclocking.
 
yDue to AM4 processor/memory controller official specification limitation, the 
frequency of memory modules may operate lower than the marked value under the default state. Please refer www.msi.com for more information on compatible memory. 
						

							27Overview of Components
PCI_E1~6: PCIe Expansion Slots
PCI_E1: PCIe 2.0 x1 
PCI_E2: PCIe 3.0 x16 (RYZEN series processors)  
PCIe 3.0 x8 (7th Gen A-series/ Athlon™ processors)
PCI_E3: PCIe 2.0 x1 
PCI_E4: PCIe 3.0 x8 (For RYZEN series processors only)
Unavailable for 7th Gen A-series/ Athlon™ processors
PCI_E5: PCIe 2.0 x1 
PCI_E6: PCIe 2.0 x4 
Multiple graphics cards installation recommendation (RYZEN series 
processors)
x16x8
x8 x8
x8 x4
 Important
 
yIf you install a large and heavy 
graphics card, you need to use a tool such as MSI Gaming Series Graphics Card Bolster to support its weight to prevent deformation of the slot.
 
yFor a single PCIe x16 expansion 
card installation with optimum performance, using the PCI_E2 slot is recommended.
 
yWhen adding or removing expansion 
cards, always turn off the power supply and unplug the power supply power cable from the power outlet. Read the expansion card ’s 
documentation to check for any  necessary additional hardware or software changes. 
						

							28Overview of Components
PCIe bandwidth table
For RYZEN series processors
SlotSingle 2-Way3-Way
PCI_E1 2.0 x1 2.0 x12.0 x1
PCI_E2 3.0 x16* 3.0 x8*3.0 x8*
PCI_E3 2.0 x1 2.0 x12.0 x1
PCI_E4 ―3.0 x8* 3.0 x8*
PCI_E5 2.0 x1 2.0 x12.0 x1
PCI_E6 ―2.0 x4 ―2.0 x4 2.0 x4*
M2_1 3.0 x4 3.0 x43.0 x4
M2_2 2.0 x4 ―2.0 x4 ― ―
(─: empty, *: graphics card)
For 7th Gen A-series/ Athlon™ processors
Slot Single 2-Way
PCI_E1 2.0 x1 2.0 x1
PCI_E2 3.0 x8* 3.0 x8*
PCI_E3 2.0 x1 2.0 x1
PCI_E4 ― ―
PCI_E5 2.0 x1 2.0 x1
PCI_E6 ―2.0 x4 2.0 x4*
M2_1 3.0 x4 3.0 x4
M2_2 2.0 x4 ――
(─: empty, *: graphics card)
 Important
M2_2 and PCI_E6 share the same lanes. When M2_2 and PCI_E6 are installed  simultaneously, M2_2 will have a higher priority. 
						

							29Overview of Components
Installing SLI graphics cards
For power supply recommendations for SLI configurations, please refer to the user 
guide of your graphics card to make sure you meet all the system requirements.
To install SLI graphics cards:
1. 
Turn off your computer and disconnect the power cord, install two graphi\кcs cards 
into

 the PCI_E2 and PCI_E4 slots.
2.
 
Connect the two cards together using the 
 SLI Bridge Connector.
3. Connect all PCIe power connectors of the graphics cards.
4.  
Reconnect the power cord, power up the computer and install the drivers \кand 
software included in your graphics card package.
5.

 
Right-click the Windows desktop and select 
 NVIDIA Control Panel from the menu, 
click on Configure SLI, Surround, PhysX in the left task pane and select Maximize 
3D performance in the SLI configuration menu, and then click Apply. 
						

							30Overview of Components
M2_1~2: M.2 Slots (Key M)
M2_1
M2_2
1
2
330°
5
Installing M.2 moduleUsing M.2 shield
We provide the M.2 shield on the M2_1 slot to help 
dissipate heat away from the M.2 module. Before 
installing the M.2 module for the first time, you need 
to remove the screw, lift the cover and remove the 
protective film and the round rubber from the 
thermal pad.
 Important
If you don ’t need the M.2 shield, you can 
remove it.
1. Remove the screw from the base screw.
2.
 
Remo
 ve the base screw.
3.
 
Tight
 en the base screw into the hole of 
the distance to the M.2 slot as the length 
your M.2 module.
4.
 
Insert y
 our M.2 module into the M.2 slot 
at a 30-degree angle.5. Put the scr ew in the  notch on 
the trailing edge of your M.2 
module and tighten it into the 
base screw.
4
 Video Demonstration
Watch the video to learn how to use M.2  Shield.
https://youtu.be/NwtQBpkUazs