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Asus Prime X399-A

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User ratings:
36
4.3 out of 5
36 user ratings
5 stars
47 %
4 stars
38 %
3 stars
11 %
2 stars
2 %
1 stars
0 %
Editorial reviews:
1
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1 editorial reviews
Earlier this month we reviewed our first ThreadRipper-supporting X399 motherboard, and as luck would have it was one of the most feature packed models on the market: the ASRock Fatal1ty X399 Professional Gaming. The downside of features is that they always carry a price, and in the case of this...Read more
Read editorial reviews

Pros

  • better performance and improved energy efficiency
  • numerous connectors and ports are easily accessible and free from possible obstruction
  • very smooth and responsive UEFI BIOS

Cons

  • ample unused PCB room right next to the power button
  • can work for nics but not graphics cards
  • It may not display this or other websites correctly

Key specs

  • Realtek S1220A
  • DDR4
  • 128 GB
  • 8
  • UEFI AMI
  • 1
  • Extended ATX
  • TR4

Asus Prime X399-A - Pros & Cons

Asus Prime X399-A

Pros

  • better performance and improved energy efficiency
  • numerous connectors and ports are easily accessible and free from possible obstruction
  • very smooth and responsive UEFI BIOS

Cons

  • ample unused PCB room right next to the power button
  • can work for nics but not graphics cards
  • It may not display this or other websites correctly
  • memory slots are clipless on one side
  • lack of a reset or even clear CMOS button is
  • lack of PS/2 port is an interesting omission

Asus - Video Reviews (4)

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Asus Prime X399-A - Full Specifications

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General
Motherboard typeExtended ATX
Processor socketTR4
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Audio properties
Audio codecRealtek S1220A
Audio output channels7.1
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Technical details
Compatible processor seriesAMD Ryzen
Maximum number of processors1
Maximum number of SMP processors1
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Expansion slots
Number of M.2 (M) slots2
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Rear panel i/o ports
S/PDIF out portyes
Microphone inputyes
Ethernet LAN (RJ-45) ports1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity8
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Dimensions
Width12.01 in
Depth10.59 in
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Memory
Supported memory bus clock
  • 2400 MHz
  • 2133 MHz
  • 2666 MHz
  • 2800 MHz
  • 3000 MHz
  • 3200 MHz
  • 3333 MHz
  • 3466 MHz
  • 3600 MHz
RAM technologyDDR4
Memory slots typeDIMM
Maximum RAM size128 GB
Number of memory slots8
Unbuffered memoryyes
Memory channelsQuad
ECCyes
Non-ECCyes
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Graphics
Parallel processing technology support
  • 2-Way CrossFireX
  • 2-Way SLI
  • 3-Way CrossFireX
  • 3-Way SLI
  • Quad-GPU CrossFireX
  • Quad-GPU SLI
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Bios
BIOS typeUEFI AMI
BIOS features
  • WfM 2.0 support
  • Multilingual BIOS
  • ASUS Quiet Thermal Solution
  • USB BIOS Flashback
  • UEFI BIOS
  • ASUS EZ Flash 3
  • DMI 3.0 support
  • SMBIOS 3.0 support
  • ACPI 6.1 support
BIOS memory size128.0 mB
ACPI version6.1
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Internal i/o ports
CPU fan connectoryes
Number of EATX power connectors3
Number of chassis fan connectors3
12V power connectoryes
ATX Power connector (24-pin)Y
Number of SATA III connectors6
Front panel connectoryes
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Network
Ethernet LAN (Network)yes
LAN controllerIntel I211-AT
Ethernet interface typeGigabit Ethernet

Asus Prime X399-A - Q&A

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Asus Prime X399-A Asus - Editorial Reviews (1)