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MSI MAG B660M MORTAR WIFI DDR4 User Manual

MSI MAG B660M MORTAR WIFI DDR4
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34


MSI UEFI BIOS is compatible with UEFI (Unified Extensible Firmware Interface)
architecture. UEFI has many new functions and advantages that traditional BIOS
cannot achieve, and it will completely replace BIOS in the future. The MSI UEFI
BIOS uses UEFI as the default boot mode to take full advantage of the new chipset’s
capabilities.
Important
The term BIOS in this user guide refers to UEFI BIOS unless otherwise noted.


test process. And also eliminates the time to switch to CSM mode during POST.
Supports for hard drive partitions larger than 2 TB.
Supports more than 4 primary partitions with a GUID Partition Table (GPT).
Supports unlimited number of partitions.

compatibility.

ensure that no malware tampers with the startup process.

32-bit Windows operating system 

Older graphics card
warning message There is no GOP (Graphics Output protocol) support detected in
this graphics card.
Important
We recommend that you to replace with a GOP/UEFI compatible graphics card or
using integrated graphics from CPU for having normal function.
How to check the BIOS mode?
1. Power on your computer.
2. Press Delete key, when the Press DEL key to enter Setup Menu, F11 to enter
Boot Menu message appears on the screen during the boot process.
3. After entering the BIOS, you can check the BIOS Mode at the top of the screen.
BIOS Mode: 

Table of Contents

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MSI MAG B660M MORTAR WIFI DDR4 Specifications

General IconGeneral
Processor socketLGA 1700
Processor manufacturerIntel
Compatible processor seriesIntel Celeron, Intel Core i3, Intel Core i5, Intel Core i7, Intel Core i9, Intel Pentium Gold
Non-ECCYes
Memory channelsDual-channel
Memory slots typeDIMM
Number of memory slots4
Supported memory typesDDR4-SDRAM
Maximum internal memory128 GB
Supported memory clock speeds2133, 2400, 2666, 2933, 3200, 3333, 3400, 3466, 3600, 3733, 3800, 4000, 4200, 4400, 4600, 4800 MHz
RAID levels0, 1, 5, 10
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2, PCI Express 4.0, SATA III
Parallel processing technology supportCrossfire
USB 2.0 connectors2
Number of SATA III connectors6
USB 3.2 Gen 1 (3.1 Gen 1) connectors1
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity3
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)
Bluetooth version5.2
Top Wi-Fi standardWi-Fi 6 (802.11ax)
Ethernet interface type2.5 Gigabit Ethernet
Component forPC
Motherboard chipsetIntel B660
Audio output channels7.1 channels
Motherboard form factormicro ATX
BIOS type-
Harmonized System (HS) code84733020
Weight1000 g
Weight and Dimensions IconWeight and Dimensions
Width244 mm
Height65 mm

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