MSI B660M BOMBER DDR4 User Manual

1
Thank you for purchasing the MSI® motherboard. This User Guide gives
information about board layout, component overview, BIOS setup and software
installation.
Contents
Safety Information ........................................................................................................ 2
Specifications ................................................................................................................ 3
Special Features ........................................................................................................... 6
Back Panel Connectors ............................................................................................... 7
LAN Port LED Status Table .................................................................................... 7
Overview of Components ............................................................................................. 8
CPU Socket ............................................................................................................. 9
DIMM Slots ............................................................................................................ 10
M2_WIFI1: M.2 Slot (Key E) .................................................................................. 10
PCI_E1~2: PCIe Expansion Slots .......................................................................... 11
JFP1, JFP2: Front Panel Connectors ................................................................... 11
M2_1: M.2 Slot (Key M) ......................................................................................... 12
SATA5~8: SATA 6Gb/s Connectors ....................................................................... 12
CPU_PWR1, ATX_PWR1: Power Connectors ....................................................... 13
JAUD1: Front Audio Connector ............................................................................ 14
CPU_FAN1, SYS_FAN1: Fan Connectors ............................................................. 14
JCI1: Chassis Intrusion Connector ....................................................................... 15
JBAT1: Clear CMOS (Reset BIOS) Jumper ........................................................... 15
JUSB2: USB 3.2 Gen 1 Connector ........................................................................ 16
JUSB1: USB 2.0 Connector .................................................................................. 16
JTPM1: TPM Module Connector ........................................................................... 17
JRGB1: RGB LED connector ................................................................................ 17
JRAINBOW1~2: Addressable RGB LED connectors ........................................... 18
EZ Debug LED ....................................................................................................... 18
Installing OS, Drivers & MSI Center .......................................................................... 19
UEFI BIOS .................................................................................................................... 20
BIOS Setup ............................................................................................................ 21
Resetting BIOS ...................................................................................................... 22
Updating BIOS ....................................................................................................... 22

MSI B660M BOMBER DDR4 Specifications

General

Chipset	Intel B660
Form Factor	Micro ATX
Memory Type	DDR4
Socket	LGA 1700
Memory Slots	4
Maximum Memory	128 GB
Memory Speed	Up to 4800 MHz (OC)
PCIe x16 Slots	1
M.2 Slots	2
SATA Ports	4
Audio	Realtek ALC897
Storage	2 x M.2 slots
USB Ports	USB 3.2 Gen 1, USB 2.0
LAN	Realtek 2.5Gbps LAN
Video Outputs	1 x HDMI, 1 x DisplayPort
PCIe Slots	2 x PCIe 3.0 x1