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MSI MAG B660 TOMAHAWK WIFI User Manual

MSI MAG B660 TOMAHAWK WIFI
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27
Overview of Components
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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.
However, you can follow the instruction below to adjust the fan connector to PWM or
DC Mode manually.
Switching fan mode and adjusting fan speed
You can switch between PWM mode and DC mode and adjust fan speed in BIOS >
HARDWARE MONITOR.
Select PWM mode or DC mode
Important
Make sure fans are working properly after switching the PWM/ DC mode.
There are gradient points of the fan speed that allow you to adjust
fan speed in relation to CPU temperature.
Pin definition of fan connectors
CPU_FAN1
SYS_FAN3
SYS_FAN4
PUMP_FAN1
SYS_FAN1
SYS_FAN2
SYS_FAN5
Connector
Default fan
mode
Max.
current
Max.
power
CPU_FAN1 PWM mode 2A 24W
PUMP_FAN1 PWM mode 3A 36W
SYS_FAN1~5 DC mode 1A 12W
1
PWM Mode pin definition
1 Ground 2 +12V
3 Sense 4 Speed Control Signal
1
DC Mode pin definition
1 Ground 2 Voltage Control
3 Sense 4 NC

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MSI MAG B660 TOMAHAWK WIFI 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
Number of memory slots4
Supported memory typesDDR5-SDRAM
Maximum internal memory128 GB
Supported memory clock speeds4800, 5000, 5066, 5200, 5333, 5400, 5600, 5800, 6000, 6200 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
DVI-D ports quantity-
WiFi-AP antenna jack2
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.
USB4 Gen 2×2 ports quantity1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity0
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 6E (802.11ax)
Bluetooth version5.2
Top Wi-Fi standardWi-Fi 6E (802.11ax)
Ethernet interface type2.5 Gigabit Ethernet
Number of SATA III connectors6
Audio chipRealtek ALC1220P
Component forPC
Motherboard chipsetIntel B660
Audio output channels7.1 channels
Motherboard form factorATX
Harmonized System (HS) code84733020
Weight and Dimensions IconWeight and Dimensions
Depth305 mm
Width244 mm

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