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Comparison MSI B450 GAMING PLUS MAX vs MSI B450-A PRO

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MSI B450 GAMING PLUS MAX
MSI B450-A PRO
MSI B450 GAMING PLUS MAXMSI B450-A PRO
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Automatic overclocking of the entire system in three clicks. 4 DDR4 slots at 4133 MHz. A pair of reinforced PCI-E with Crossfire support. Turbo M.2 interface.
Featuresgaming for overclockinggaming for overclocking
SocketAMD AM4AMD AM4
Form factorATXATX
Power phases66
VRM heatsink
Size (HxW)305x244 mm305x244 mm
Chipset
ChipsetAMD B450AMD B450
BIOSAmiAmi
UEFI BIOS
RAM
DDR44 slot(s)4 slot(s)
Memory moduleDIMMDIMM
Operation mode2 channel2 channel
Max. clock frequency4133 MHz3466 MHz
Max. memory128 GB128 GB
XMP
Drive interface
SATA 3 (6Gbps)66
M.2 connector11
M.21xSATA/PCI-E 4x1xSATA/PCI-E 4x
Integrated RAID controller
 /RAID 0, RAID 1, RAID 10/
 /RAID 0, RAID 1, RAID 10/
Expansion slots
1x PCI-E slots44
PCI-E 16x slots22
PCI Modes16x/4x16x/4x
PCI Express3.03.0
CrossFire (AMD)
Steel PCI-E connectors
Internal connections
USB 2.022
USB 3.2 gen111
RGB LED strip
/5050 RGB LED strip 12V/
More featuresClear CMOS
Video outputs
D-Sub output (VGA)
DVI outputDVI-DDVI-D
HDMI output
HDMI versionv.1.4v.1.4
Integrated audio
AudiochipRealtek ALC892Realtek ALC892
Sound (channels)7.17.1
Network interfaces
LAN (RJ-45)1 Gbps1 Gbps
LAN ports11
LAN controllerRealtek 8111HRealtek 8111H
External connections
USB 2.022
USB 3.2 gen122
USB 3.2 gen222
PS/211
BIOS FlashBack
Power connectors
Main power socket24 pin24 pin
CPU power8 pin8 pin
Fan power connectors66
CPU Fan 4-pin1
CPU/Water Pump Fan 4-pin1
Chassis/Water Pump Fan 4-pin4
Added to E-Catalogjuly 2019july 2018

Max. clock frequency

The maximum RAM clock speed supported by the motherboard. The actual clock frequency of the installed RAM modules should not exceed this indicator — otherwise, malfunctions are possible, and the capabilities of the “RAM” cannot be used to the fullest.

For modern PCs, a RAM frequency of 1500 – 2000 MHz or less is considered very low, 2000 – 2500 MHz is modest, 2500 – 3000 MHz is average, 3000 – 3500 MHz is above average, and the most advanced boards can support frequencies of 3500 – 4000 MHz and even more than 4000 MHz.

XMP

The ability of the motherboard to work with RAM modules that support XMP (Extreme Memory Profiles) technology. This technology was developed by Intel; it is used in motherboards and RAM blocks and only works if both of these system components are XMP compliant. A similar technology from AMD is called AMP.

The main function of XMP is to facilitate system overclocking (“overclocking”): special overclocking profiles are “sewn” into the memory with this technology, and if desired, the user can only select one of these profiles without resorting to complex configuration procedures. This is not only easier, but also safer: every profile added to the bar is tested for stability.

RGB LED strip

Connector for connecting a decorative LED strip and other devices with LED indication. Allows you to control the backlight of the case through the motherboard and customize the glow for your tasks, including synchronize it with other components.

D-Sub output (VGA)

The motherboard has its own D-Sub (VGA) output.

Such an output is intended for transmitting video from an integrated graphics card (see above) or a processor with integrated graphics (we emphasize that it is impossible to output a signal from a discrete graphics card through the motherboard chipset). As for VGA specifically, it is an analogue standard originally created for CRT monitors. It does not differ in image quality, is practically not suitable for resolutions above 1280x1024 and does not provide sound transmission, and therefore is generally considered obsolete. However, this type of input continues to be used in some monitors, TVs, projectors, etc.; so among motherboards you can find models with such outputs.

BIOS FlashBack

Motherboards that support BIOS FlashBack provide the ability to flash or restore the BIOS without a processor, video card or memory. The main purpose of the function is to provide users with the ability to update the BIOS in cases where the current version is incompatible with the installed processor or other computer components, which may lead to the inability to start the system. As a rule, the motherboard provides for this a USB connector for a flash drive and a special button (usually labeled BIOS Flashback) - pressing it initiates the update process.

On a separate line, we note that the BIOS FlashBack function can be called differently depending on the manufacturer: in motherboards from ASRock and Asus - BIOS FlashBack, from Gigabyte - Q-Flash Plus, from MSI - Flash BIOS, etc.

CPU Fan 4-pin

A four-pin connector used to connect a processor cooling fan. The first contact in it corresponds to the black wire of the cooler — it is the "ground" or minus of the power supply. The second contact is the plus of the power supply (yellow or red cooler wire). The third one is involved in measuring the rotation speed of the impeller (green or yellow fan wire). The fourth pin, corresponding to the blue wire, receives control signals from the PWM controller to adjust the cooler rotation speed depending on the temperature of the processor.

CPU/Water Pump Fan 4-pin

A four-pin connector for connecting a water cooling pump fan. It can also be used to turn on an additional CPU cooler.

Chassis/Water Pump Fan 4-pin

A connector responsible for connecting additional coolers for the benefit of better cooling of components inside the system unit. Most often it is located on the edges of the motherboard — closer to the front side and the ceiling of the "system unit". It is made according to the four-contact scheme.
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