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ASRock X370 Killer SLI/ac AM4 AMD Promontory X370 SATA 6Gb/s ATX AMD Motherboard

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  • AMD Promontory X370
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge)
  • AMD Ryzen series CPUs (Matisse) support DDR4 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 2933+(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Picasso) support DDR4 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Summit Ridge) support DDR4 2933+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Picasso and Raven Ridge) support DDR4 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory
  • AMD 7th Gen A-Series APUs support DDR4 2400/ 2133 ECC & non-ECC, un-buffered memory

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

ASRock X370 Killer SLI/ac Motherboard

A performance- and features-loaded motherboard oriented for power users and hardcore gamers to build their killer PCs. Built with superb speed and thermals in mind, this ATX motherboard allows you to take full advantage of AMD A-series APUs and Ryzen series CPUs in AM4 packaging. As the model name suggests, it supports NVIDIA Quad SLI and AMD Quad CrossFireX via its two PCIe 3.0 x16 slots, and has an onboard wireless module capable of up to 802.11ac and Bluetooth v4.2. It also has two M.2 slots and a wealth of USB ports, including Type-C. Light up your gaming space with onboard RGB LED and LED header. Play at your best and game without fear, as this board is solidly built with Super Alloy components and up to 12 power phases.

  • ASRock Super Alloy
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
  • Supports DDR4 2933+ (OC) (Ryzen CPU) / 2400 (A-series APU)
  • 2x PCIe 3.0 x16, 4x PCIe 2.0 x1, 1x M.2 (Key E)
  • NVIDIA® Quad SLI™, AMD Quad CrossFireX™
  • Graphics Output:HDMI
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), Nichicon Fine Gold Series Audio Caps
  • 6x SATA3, 1x Ultra M.2 (PCIe Gen3 x4 & SATA3), 1x M.2 (PCIe Gen2 x2 & SATA3)
  • 12x USB 3.0 (1x Type-C, 4x Front, 7x Rear)
  • Intel® Gigabit LAN
  • Intel® 802.11ac+ BT 4.2
  1. Dual-Band 802.11ac WiFi
  2. HDMI
  3. USB Type-C
  4. Intel Gigabit LAN
  5. Nichicon Fine Gold Series Audio Caps
  6. 2oz Copper PCB
  1. 2x RGB LED Headers
  2. M.2 Socket (PCIe Gen2 x4)
  3. 6x SATA3 6Gb/s
  4. PCI-E Steel Slots
    Suppotrs 2-Way SLI/CFX
  5. Ultra M.2 Socket (PCIe Gen3 x 4 & SATA3)
  6. Nichicon 12K Black Caps
  7. AMD AM4 Socket
    Supports Ryzen Series CPUs (Summit Ridge)
  8. Digi Power 16 Power-Phase Design Premium 60A Power Choke Dual-Stack MOSFET (DSM)

Armor Your VR Machine


Prepare yourself well to enjoy the impressive world of Virtual Reality. Before that, you have to make sure everything is qualified, including hardware, software and drivers. Motherboards are the key to connect all your critical components and ASRock's VR Ready motherboards are definitely the ones you'll need. The premium quality is assured by rigorous testing during development. The sturdy components and rock-slid performance makes you completely immersive in the VR scenario. Users can be assured to experience VR enjoyments without any compatibility problems.

Dual M.2 for SSD


One PCIe Gen3 x4 Ultra M.2 interface pushes data transfer speeds up to 32Gb/s, and is compatible with ASRock's U.2 Kit for installing some of the world's fastest U.2 PCIe Gen3 x4 SSDs. The other one supports PCIe Gen2 x4 20Gb/s transfer speeds.

PCI-E STEEL SLOTS


The advanced PCI-E Steel Slots packed with solid cover that prevent any signal interference with graphics cards. It also ensures the heavy graphics cards to be well-installed in the PCI-E slots safely.
RGB LED Badge

RGB LED


Build your own colorful lighting system! RGB LED and header allows users to connect LED strip and create their unique PC style easily. The ASRock RGB LED utility can be downloaded directly or from an all-in-one utility ASRock Live Update & APP Shop!

  1. Drag the tab to customize your preference.
  2. Toggle on/off the RGB LED switch and choose the channel.
  3. Select an RGB LED light effect from the drop-down menu.

Dual-Band 802.11ac WiFi


No one has time for weak WiFi signals and sluggish internet! That's why this motherboard comes with a 802.11ac WiFi (2.4G / 5G WiFi) module which supports wireless networks and Bluetooth v4.2.

12 Power-Phase Design


Designed with a 12 power-phase design, this motherboard features sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.

IR® Digital PWM


The onboard IR® Digital PWM controller delivers the most precise and stable power so that users may achieve optimal performance.
Super Alloy Motherboard Graphic Text
XXL Aluminum Alloy Heat Sink
ASRock X370 Motherboard's XXL Aluminum Alloy Heat Sink

Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stably.

Premium 45A Power Choke
ASRock X370 Motherboard's Premium 45A Power Choke

Compared to traditional chokes, ASRock's premium 45A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Nichicon 12K Black Caps
ASRock X370 Motherboard's Nichicon 12K Black Caps

A combination of 820uF and 100uF capacitors. Together these capacitors provide clearer, efficient and more responsive CPU Vcore power, so overclockers may achieve higher scores.

I/O Armor
ASRock X370 Motherboard's I/O Armor

A new designed protective cover for all of the crucial parts near the motherboard's rear I/O, so that they won't easily be damaged by static electricity.

Sapphire Black PCB
ASRock X370 Motherboard's PCB Corner

Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.

High Density Glass Fabric PCB
ASRock X370 Motherboard's High-Density Glass Fabric PCB versus Traditional Fabric

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

USB Type-C


The latest reversible USB Type-C design that fits the connector either way.

Inlcuded SLI HB Bridge


The newly bundled ASRock SLI HB Bridge is compatible with the NVIDIA® GeForce GTX 1080 and 1070 graphics cards that doubles the available transfer bandwidth, thus delivering rock stable gameplay and experiencing surround gaming in the best way.

2oz Copper


It comes with 2 ounces copper inner layers, using only carefully selected copper materials for PCB layers, delivering lower temperature and higher energy efficiency for overclocking.
ASRock X370 Motherboard's Water-Pump Header

Water-Pump Header


This is not only a standard CPU fan header, but also supports water pumps! This header provides a maximum of 1.5A power for supporting the most popular water pumps. User also can adjust the voltage of water pump to get higher cooling performance with lower noise.
A-Tuning Software Windows

A-Tuning


A-Tuning is ASRock's multi purpose software suite with a new interface, more new features and improved utilities.
ASRock APP Shop Logo and Compatible Software

Live Update & APP Shop


ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.
HDMI Logo The specification is subject to change without notice in advance. The brand and product names are trademarks of their respective companies. Any configuration other than original product specification is not guaranteed.
The above user interface picture is a sample for reference. The actual user interface may vary with the updated software version.

Learn more about the ASRock X370 Killer SLI/ac

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: Non-refundable
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Replacement Only Return Policy.
Ownership: 1 week to 1 month
Verified Owner
2/ 5
Nothing but trouble 1/4/2020 9:38:25 AM

Pros: It is a sleek looking board.

Cons: Too many hoops to jump through to update bios for RYZEN5 3600x. Had to buy a second AM4 socketed processor (straight off the ASROCK support website) in order to update, and even then that didn't work.

Overall Review: I suppose it would be alright as long as you buy a CPU that this board already has bios for.

0 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Michael,

Sorry for any inconvenience this may have caused you.
Due to the mainboard (1st gen) had been released before Ryzen 5 3600 (3rd gen) processor, the BIOS update (5.40 or newer) is required.
Please install 1st gen AMD CPU to post, download and update the BIOS 5.40 or newer link below.
BIOS downloads link: https://www.asrock.com/mb/AMD/X370%20Killer%20SLIac/index.us.asp#BIOS

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: more than 1 year
Verified Owner
2/ 5
Can't use all memory banks 12/14/2019 11:24:17 AM

Pros: Easy to install and works well.

Cons: Memory banks are very limited to either all single channel or only 2 dual channel banks. You can not use all memory banks unless you only use single channel (which most memory now is dual channel), so when I went to upgrade to 64 GB I found out I couldn't.

Overall Review: I don't think I will buy another one of these boards without further checking the memory banks requirements.

Did you find this review helpful?
Manufacturer Response:
Dear Gary,

Thank you for purchase and review.
Please try following to verify CPU, memory or mainboard related issues.
Turn the power off, clear the CMOS.
Reseat the CPU and cooler.
Reseat the 2 x memory on A2 and B2 slots or A1 and B1 slots.
Check if the dual channel is shown in BIOS, Main (if it’s still showing single channel memory that would be related to CPU, memory and/or mainboard).
If possible, please test with known good CPU and memory to verify.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: more than 1 year
Verified Owner
5/ 5
2-Years WIth this Board 12/8/2019 7:59:37 AM

Pros: * Low price
* I've had ZERO issues
* Overclock options are pretty good
* I don't like absurd amount of lights in my PC... this one doesn't look like a fireworks display but the single red light is pretty cool (for me a positive).

Cons: * None that I can see

Overall Review: I bought this board in 2017 and paired it up with a Ryzen 1700X. I am a hobbyist miner and, although, this is my primary home office PC I also mine on the CPU & GPU when I'm not using it. So I've had the system under continuous load the *entire* time. Zero hiccups. I cannot complain at all and I continue to go back to ASRock for almost every system that I build (I own 12+ boards at this time).

I'll be upgrading to a Ryzen 3900X next week. If I don't update the review that means it worked perfectly ;-)

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
5/ 5
Great, stable board 11/29/2019 8:59:51 PM

Pros: Pretty
WiFi built in
Modern
Rgb

Cons: Honestly, none yet

Overall Review: Stable. Actually bought it on 9/11/17. No issues since. Running og ryzen 5 1600. Haven't updated bios but I hear it supports series 3.

Edit:11/29/19. Upgraded to R2700x, Crucial 3200MHz RAM. Updated to BIOS 5.40. Runs perfect.

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Won't boot into Bios 10/13/2019 8:52:02 PM

Pros: easy layout

Cons: Wont boot up with a ryzen 5 3600 and ddr4 3200 memory. Sent the wrong motherboard doesn't say ryzen like in the picture it says Intel gigabit Ethernet. Looks like a totally different mobo inside the box idk if it's a return or what. It should've been new.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
1/ 5
Total pain to update 8/28/2019 8:34:57 PM

Pros: Runs a gen 1 ok!

Cons: The updates released on the asrock site don't even load on the same flash drive. I am able to see 3.5, 4.6, 4.8. But 5.1, and 5.4 don't show up. They advertise it will take the new 3700x

Overall Review: WIll update if/when this gets fixed.

0 out of 2 people found this review helpful. Did you?
Manufacturer Response:
Dear Kevin,

Sorry for any inconvenience this may have caused you.
Please download and update the BIOS link below.
BIOS DL link: https://www.asrock.com/mb/AMD/X370%20Killer%20SLIac/index.us.asp#BIOS

If the BIOS is older than 3.50, please update to 3.50 firstly.
Then update to 5.10, and then 5.50
BIOS Upgrade Instruction link: https://www.asrock.com/support/BIOSIG.asp?cat=BIOS10

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: 1 day to 1 week
Verified Owner
1/ 5
Don't trust a majority of 4 and 5 egg reviews 8/15/2019 7:40:44 AM

Pros: Board looks good with potential good value

Cons: Support for Pinnacle ridge 2700X even though confirmed through ASRock tech support is questionable.
AMD 2700X CPU, Trident Z F4-2933C14D-16GTZRX memory and Titan X pascal GPU, Seasonic Focus Platinum 850 watt. Breadboarded for initial test using all memory configurations and no post, no sound, no activity on monitor display. Has no code display organic to MB. Will be returning product forthwith.

Overall Review: Seriously, have not had this issue with ASUS boards, and I don't particularly care for ASUS support. ASROCK support easy enough to access, and polite.

0 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Michael,

Sorry for any inconvenience this may have caused you.
Due to the mainboard was released before Pinnacle Ridge CPU, its required BIOS version 4.60 or newer to get it to post.
Please check if the sticker "AMD Ryzen Desktop 2000 ready” is outside of the box.
As always, we will be more than happy to assist you for update the BIOS if receive older version.
Please contact us at http://event.asrock.com/tsd.asp

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Anonymous
1/ 5
Worked for 6 months and then completely crashed. 6/28/2019 1:58:16 PM

Pros: Great look
Built in Wifi

Cons: Poor stability
Completely bricked my system and had to repurchase another motherboard.

Overall Review: I went with this board as it matched my theme, had the features I needed, and had built-in Wifi / Bluetooth, seemed like a no brainer.

6 months after using the board it just completely stopped posting if a GPU was inserted into the top PCI-E slot. If you attempt the put a card into the bottom slot, the card itself is not recognized. Nothing is more frustrating than a faulty motherboard as it essentially makes you rebuild the entire system. I got sent a replacement board, but this will be my last Asrock purchase.

Did you find this review helpful?
Manufacturer Response:
Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power.
• Clear the CMOS.
• Test with 1 x memory module, switching another memory if it same issue.
• Reseat GPU card firmly and 6+6 PCIE power (if applied). Test with another known good GPU if it same issue.
• Connect the monitor.
• Plug the 24 + 8 or 4 pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
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