User Manual
Table Of Contents
- Quick Start
- Specifications
- Special Features
- Package Contents
- Back Panel Connectors
- Overview of Components- CPU Socket
- DIMM Slots
- PCI_E1~3: PCIe Expansion Slots
- M2_1~4: M.2 Slots (Key M)
- SATA_1~4 & SATA_A1~2: SATA 6Gb/s Connectors
- JAUD1: Front Audio Connector
- JFP1, JFP2: Front Panel Connectors
- CPU_PWR1~2, ATX_PWR1: Power Connectors
- JCI1: Chassis Intrusion Connector
- JUSB1: USB 3.2 Gen 2 Type-C Front Panel Connector
- JUSB2: USB 3.2 Gen 1 Connector
- JUSB3~4: USB 2.0 Connectors
- JTPM1: TPM Module Connector
- JOC_FS1: Safe Boot Jumper
- JDASH1 : Tuning Controller Connector
- CPU_FAN1, PUMP_FAN1, SYS_FAN1~5: Fan Connectors
- JBAT1: Clear CMOS (Reset BIOS) Jumper
- BAT1: CMOS Battery
- JRGB1: RGB LED Connector
- JARGB_V2_1~3: A-RAINBOW V2 (ARGB Gen2) LED Connectors
 
- Onboard LEDs
- Installing OS, Drivers & MSI Center
- UEFI BIOS
29
B
AT1
PCI_E1~3: PCIe Expansion Slots
PCI_E1: PCIe 4.0 x16 (From CPU)
PCI_E3: PCIe 3.0 x1 (From B650 Chipset) 
PCI_E2: PCIe 4.0 x4 (From CPU)
 
Important
 
If 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.
 
For a single PCIe x16 expansion card installation with optimum performance, using 
the PCI_E1 slot is recommended.
 
When 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.
 
PCI_E1, M2_2 & M2_3 share the bandwidth. PCI_E1 will run at x8 speed when 
installing devices in M2_2 or M2_3 slots.
M.2 slots and PCIe slots combination table
Slot Combination
M2_1 (CPU) 
M2_2 (CPU) X PCIe x4 X PCIe x4
M2_3 (CPU) X X PCIe x4 PCIe x4
M2_4 (Chipset) 
PCI_E1 (CPU) PCIe x16 PCIe x8 PCIe x8 PCIe x8
PCI_E2 (CPU) 
PCI_E3 (Chipset) 










