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ASRock B450 PRO4 AM4 AMD Promontory B450 SATA 6Gb/s USB 3.1 HDMI ATX AMD Motherboard

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  • AMD Promontory B450
  • Supports 105W Water Cooling (Pinnacle Ridge); Supports 95W Water Cooling (Summit Ridge); Supports 65W Water Cooling (Raven Ridge)
  • AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
  • AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
  • AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC)/ 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory*
  • * For Ryzen Series CPUs (Raven Ridge), ECC is only supported with PRO CPUs.

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
B450 B450
B450 Pro4
  • AMD AM4 Socket
  • Supports DDR4 3200+ (OC)
  • 2 PCIe 3.0 x16, 4 PCIe 2.0 x1
  • AMD Quad CrossFireX™
  • Graphics Output: HDMI, Display Port, D-Sub
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps
  • 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)
  • 2 USB 3.1 Gen2 (Rear Type A+C)
  • 6 USB 3.1 (2 Front, 4 Rear)
  • Realtek Gigabit LAN
B450
AMD StoreMI Technology

A powerful tool that combines the speed of your SSD with the capacity of your hard disk into a single, fast, easy-to-manage drive. SSDs are fast, but expensive, and offer minimal capacity. Mechanical hard drives boast large capacity for a low price, but are much slower than an SSD. AMD StoreMI technology "combines" these two types of storage into a single drive and automatically moves the data you access the most to the SSD, so you get the best of both worlds: SSD responsiveness, and mechanical hard disk capacity. You can also use up to 2GB of RAM as a last-level cache for ultra-fast data.

B450
Dual M.2 For SSD

Equipped with M.2 slot that supports both SATA3 6Gb/s and PCIe Gen3 x4 Ultra M.2 interface that 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 SSD.

B450
Dual USB 3.1 Gen2 (Type-A + Type-C)

This motherboard has a pair of onboard Type-A and Type-C USB 3.1 Gen2 ports built on the rear i/o for supporting next generation USB 3.1 Gen2 devices and to deliver up to 10 Gbps data transfer rates.

USB 3.1 Gen2 doubles the data transfer rate

B450

USB 3.1 Gen2 Type-C doubles the charge speed!

B450
B450
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.

B450
Premium 42A Power Choke
B450

Compared to traditional chokes, ASRock's premium 42A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Sapphire Black PCB
B450

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

2oz Copper PCB
B450

Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.

B450
3 Graphics Outputs

Complete with all three types of most used connectors! Packed with a D-Sub + DisplayPort + HDMI combo. Plus the HDMI port supports 4K resolution.
*Supported with A-Series APUs only.

B450
Triple Monitor

Graphics, graphics and even more graphics! You've demanded for more eye candy, so this motherboard supports Triple Monitor. You may choose up to three display interfaces from the rear i/o to connect monitors and use them simultaneously without installing another graphics card.
*Supported with processors with integrated graphics only.

B450
Solid Capacitor Design

ASRock applied solid capacitors on this motherboard. With these solid caps, this motherboard is allowed to perform more stably and ensure longer lifetime.

B450
ELNA Audio Caps

Who says high quality audio is only available on high-end motherboards? ASRock applied ELNA audio capacitors on mainstream and entry-level motherboards! Compared with traditional solid caps, the leakage current of ELNA audio caps is merely 3uA. This is the key to reduce noise level significantly and satisfy even the pickiest audiophiles.

B450
Digi Power

This motherboard uses a next generation Hybrid Digi Power design to bring precise control and smooth power. With the ensured efficient and clean power delivery to the CPU, the stability and lifespan of motherboard is also greatly enhanced.

B450
A-Tuning

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

B450
Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard's components from being damaged by these unexpected voltage spikes.

B450
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.


Learn more about the ASRock B450 PRO4

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: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.ca's Standard Return Policy.
1/ 5
Dead on arrival 3 times in a row

Pros: - I wouldn't know of any pros, this never ended up working for me.

Cons: - I first bought this from Newegg with other parts, tried to build and POST by only connecting PSU, CPU, CPU fan, and a monitor to this motherboard.
- Did not POST successfully when I tried to turn it on.
- The when powering the mobo, the CPU fan would spin for around 10 seconds, then stop, and replace this until I turned off the PSU.
- I tried replacing everything PSU, CPU. Ended up checking with a power supply tester that PSU is not the issue.
- I noticed that when the 8-pin wasn't connected to the PSU, the CPU fans would no longer intermittently start and stop, and continuously spun. Hence I thought this was a motherboard issue.

- RMA'd to newegg, and got a replacement mobo, the replacement also did not work.
- Next I had to RMA to the manufacturers directly as I could not RMA to newegg anymore due to the deadline being past. That replacement I just tested today and does not work as well, with the same symptoms (but now it doesn't power on if the 8 pin isn't connected.)

Other Thoughts: - This was my first attempt at building a PC and from this experience, I would recommend everyone to never buy ASRock motherboards.

0 out of 4 people found this review helpful. Did you?
Manufacturer Response:
Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
If the board was RMA with us (ASRock), the board had been fully tested by technician to assure working normal before ship.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power, remove all components from mainboard.
• Remove the mainboard from chassis, place it on mainboard’s box.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module (un-buffered).
• Test with onboard video (CPU with APU or test with VGA card).
• 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
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great board for Ryzen APU's

Pros: Supports Eyefinity like a Boss - HDMI, Display Port & VGA outputs!

Cons: Not the flashy'est board out there...no strobing LED's...Lol

Other Thoughts: Amazing AM4 platform support. Two m.2 NVMe slots, USB 3.1...Basically, lots of bells and whistles you would not expect at this price and a Fantastic Upgrade Path! Well worth it!

Did you find this review helpful?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
Great sale price, excellent board!

Pros: 4 memory slots, lots of fan headers, 2 PCIe full size slots, Good cooling for some overclocking. I installed my Ryzen 5 2600, 3000 speed ram and after completing the build, checking to make sure everything was connected properly, especially making sure the 2 pieces of memory I had was placed in their proper slots for dual setup, I proceeded to press the power button, and SUCCESS!!! This is a great motherboard, especially when its on sale. Has all the options you would need for a business or gaming PC. People giving this board a bad review, usually have done something wrong with putting it together. I have been building desktops for 35 years and even I run into a problem once in awhile. The main thing is to check and re check your installation of the memory and CPU. You have to press pretty hard for the memory to seat properly in this board.

Cons: NONE

Other Thoughts: I would highly recommend this board.

1 out of 2 people found this review helpful. Did you?
Ownership: 1 day to 1 week
Verified Owner
5/ 5
I was scared for 30 mins!

Pros: -Rock solid stability with a few cores going up to 4.6 Ghz on their own on default BIOS settings (Nvm. It was a program error, with HWMonitor going up to 6.6 Ghz lol... It only goes up to the max boost 3.9 Ghz.)
-Has surprisingly good audio. The audio is louder and the signal is higher quality than my old M4A78T-E motherboard's audio chipset
-My G.Skill Aegis 3000 mhz DDR4 memory's XMP 2.0 profile worked after a bios update
-Sexy color even if it's too dark to see in my case!

Cons: -This motherboard is less wide than my old AM3 ATX motherboard, making it rest on only 6 standoffs instead of the standard 8. This makes it especially flimsy on the top right corner to the middle right edge as the motherboard power connector needs quite some force to push it in and it pushes it perpendicularly. I had to put some fingers underneath to support the motherboard from underneath for that part. I didn't have an issue with the RAM as I'm only using the second slot which is close enough to the standoffs, but I'd imagine a similar issue with the third and fourth RAM slots especially given how much force is needed to push them in.

Other Thoughts: -With my Ryzen 2600 the computer wasn't initially posting and was in a reboot loop so I thought the motherboard was DOA... Turns out I just didn't seat the memory correctly! I had to push it harder than I thought, until it clicked in by itself. What a rookie mistake! (-‸ლ)
-My second mistake was installing my Noctua NH-U12P SE2 CPU cooler inside my case. Even though it's a large Antec 1200, it was a big pain to align the screws of the cooler to the screws of the bracket. My third was installing the left CPU fan before inserting the CPU power connector. Even with the fan out of the way it was still a struggle to align both the connectors with my large hands!

1 out of 1 people found this review helpful. Did you?
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Dead on arrival

Pros: cheap

Cons: dead

Other Thoughts: My first time building a pc I put everything together I am so happy I go to turn it on doesn't work no picture on my monitor nothing, confused as to why this is happening I take it appart and rebuild it again same issue. I then take it to get a diagnosis spend my money and they tell me the mother board is the issue everything is built good just the mother board is dead. Sadly this is the cheapest one so I'm forced into getting a new one of these hoping it actually works this time. Would not recommend to anybody at this point if you have the money spend a little more and buy a different mother board.

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

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, remove all components from mainboard.
• Remove the mainboard from chassis, place it on mainboard’s box.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module (un-buffered).
• Test with onboard video (CPU with APU or test with VGA card).
• 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
Ownership: 1 week to 1 month
Verified Owner
2/ 5

Pros: Easy setup and installation. A straightforward board to set in place.

Cons: Dead on arrival. Could just be a dud which definitely happens. However, board received power and powered up all chips and cards but no POST, BIOS beeps, display, keyboard, or mouse. Perhaps I just got unlucky, but this board seems to have a fair number of similar reviews. Purchase with caution.

2 out of 3 people found this review helpful. Did you?
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, remove all components from mainboard.
• Remove the mainboard from chassis, place it on mainboard’s box.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module (un-buffered).
• Test with onboard video (CPU with APU or test with VGA card).
• 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
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Easy to overclock (Clear CMOS if having issues)

Pros: - Lots of CPU FAN headers and LED RGB connectors to ensure you have power for liquid cooling pumps, fans and colored lights
- Easy to install
- Fast and easily overclockable with ASUS downloadable software for Windows and "OC" processor/RAM (AMD RYZEN 5 2600 6-Core 3.4 GHz / 3.9 GHz Max Boost and CORSAIR Vengeance LPX 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 2933 PC4 23400)
- RGB lights controllable from Windows using included software
- Arrangement of RAM slots improves ease of CPU heatsink installation (doesn't get int he way too much)
- Support M.2 PCI Express module up to Gen3 x4 (32Gb/s) with Summit Ridge, Raven Ridge and Pinnacle Ridge processors
- Supports Ryzen 5 and 7 processors for future upgrades
- Fits comfortably in Mid-tower case with extra room for small liquid cooling rigs
- Great gaming MOBO for those on a budget

Cons: - No PC speaker for error codes (buy one separately or ensure the case comes with one if you want to hear MOBO beep codes )
- Chipset heatsinks closest to the AM4 processor socket have razor-sharp edges (Be careful when installing CPU, fans, etc near there)
- Bought two of these for father-son side-by-side build and PC would not wake the display on either of our PCs using 3 different monitors/TVs with VGA, HDMI or display port connected to onboard video or add-on MSI Radeon 580 8Gb card (Had to clear BIOS CMOS with screwdriver tip because there did not appear to be any jumpers included)
- Cannot run crossfireX dual video cards if using the M.2 Ultra slot SSD drive (Currently running Intel 660p 1 TB M.2 1800Mb/s with 8 an second bootup from power-on to login screen)

Other Thoughts: NOTE: Do NOT RMA this motherboard until you: Remove power completely, disconnect the power cord and triple check all connections. Locate the two clear-CMOS pins on the motherboard and short those pins together with a screwdriver or other metal object while holding the power button on the case for at least 5-10 seconds.

- Power on your system and wait patiently at least 30 seconds for the monitor to come on before giving up completely.

3 out of 4 people found this review helpful. Did you?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Pretty Nice

Pros: Good board that works!!!!

Cons: MIR for AsRock ended before I got my package,so could not get the MIR. No cons for the board itself though.

Did you find this review helpful?
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