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ASRock ATX Motherboard (B450 PRO4)

4.5 4.5 out of 5 stars 1,505 ratings

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About this item

  • Socket Am4, Digi Power Design, 9 Power Phase Design, Supports 105W Water Cooling (Pinnacle Ridge); Supports 95W Water Cooling (Summit Ridge); Supports 65W Water Cooling (Raven Ridge)
  • Country Of Origin : China
  • Memory: 4X Ddr4-3200+(Oc)/2933/2667/2400/2133 Dimm Slots, Dual Channel, Ecc, Non-Ecc, Unbuffered, Max Capacity Of 64Gb (Amd Ryzen Series Cpus (Pinnacle Ridge))
  • Slots: 4X Pci-Express 3.0 X16 Slots (One Runs At X8, Two Run At X4), 4X Pci Express 2.0 X1 Slots
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$155.00
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$155.00
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Top Brand: ASRock

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4.3/5 star rating from 50K+ customer ratings
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What's in the box

  • - Quick Installation Guide, Support CD, I/O Shield - 2 x SATA Data Cables - 2 x Screws for M.2 Sockets
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    Price$155.00-8% $119.00
    Typical:$129.00
    -20% $79.86
    List:$99.99
    -33% $100.90
    List:$149.99
    -10% $71.99
    List:$79.99
    -10% $89.99
    List:$99.99
    Delivery
    Get it Mar 18 - 20
    Get it Mar 25 - Apr 4
    Get it as soon as Tuesday, Mar 19
    Get it as soon as Tuesday, Mar 19
    Get it as soon as Tuesday, Mar 19
    Get it as soon as Tuesday, Mar 19
    Customer Ratings
    For gaming
    3.7
    3.8
    4.5
    4.1
    4.1
    4.2
    Tech Support
    2.5
    4.2
    3.6
    3.9
    4.0
    Value for money
    4.2
    3.7
    4.2
    4.4
    Stability
    4.3
    3.9
    4.3
    4.3
    Easy to use
    3.7
    4.2
    4.0
    Sold By
    GeekTown (Daily Expedited Shipping) ✅
    ET CANADA
    CoverZip | Same Day Shipping
    Amazon.com
    Amazon.com
    Amazon.com
    platform
    windows 10
    windows 10
    android, android, android, android, android
    not machine specific
    windows 10
    windows 10
    cpu socket
    Socket AM4
    Socket AM4
    Socket AM4
    Socket AM4
    Socket AM4
    Socket AM4
    memory slots
    4
    4
    4
    4
    4
    4
    memory capacity
    64 GB
    128 GB
    12 GB
    128 GB
    128 GB
    32 GB
    compatible processors
    AMD Ryzen 5000 Series, AMD Ryzen 3000 Series, AMD Ryzen 2000 Series
    AMD 3rd Generation Ryzen
    AMD 1st Gerenration Ryzen
    AMD 3rd Generation Ryzen
    card interface
    pci e
    pci e
    integrated, integrated
    pci e
    integrated

    Product guides and documents

    Product Description

    ASRock B450 PRO4 Socket AM4/AMD Promontory B450/DDR4/Quad CrossFireX/SATA3&USB3.1/M.2/A&GBE/ATX Motherboard  (New Item!). OS - Microsoft Windows 10 64-bit

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    Technical Details

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    Additional Information

    Warranty & Support

    Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
    Product Warranty: For warranty information about this product, please click here

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    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    1,505 global ratings

    Customers say

    Customers like the value, quality and ease of use of the motherboard. They mention that it's a great budget board that doesn't feel cheap, the manual provides clear instructions and that the bios is simple enough to navigate. That said, some complain about the video issues. Opinions are mixed on performance.

    AI-generated from the text of customer reviews

    24 customers mention24 positive0 negative

    Customers appreciate the value of the motherboard. They mention that it's a great budget board that doesn't feel cheap, and has excellent features for the price. Some say that it is a good MB for a budget gaming rig.

    "...built an AMD rig before, but these Ryzen 3600 processors are monsters for the price. So happy I went with it...." Read more

    "...It's a great, no frills, budget board that I hope continues to serve me well for years to come." Read more

    "...Overall a great motherboard for the price" Read more

    "This board is great for the price. BIOS may not be the best, but it's navigable...." Read more

    23 customers mention17 positive6 negative

    Customers like the quality of the motherboard. They say it's a good product, has excellent value, and is a nice looking board. It has 2 PCI x16 slots and 2 NVME slots, but can only use up to Gen 3 NVme. Customers are also impressed with the fact that it supports ECC-DDR4 memory.

    "...It supports ECC-DDR4 memory and that was important for this application...." Read more

    "Found this to be a very versatile board. Has 2 PCI x16 slots. Has 2 NVME slots. Though can only use up to Gen 3 NVME. Does not support Gen 4 NVME...." Read more

    "...Only complaint is the ram holders. It has one side that you slide it in first and click the other side to lock it. Not fun. Feels cheap." Read more

    "Pretty good motherboard! This was just what I needed to get my clients gaming PC back up and running...." Read more

    12 customers mention9 positive3 negative

    Customers like the ease of use of the motherboard. They mention that it's simple, the manual provides clear instructions, and the overclocking software makes it simple. They also appreciate the simple BIOS and the clear instructions provided by the Ryzen software.

    "...The bios is simple enough to navigate, and is nothing fancy. Set the boot priority and boot order and you're good to go. Onboard sound works fine...." Read more

    "...Overall the installation was fairly easy. The motherboard has all of the options that I needed and everything works just fine...." Read more

    "This motherboard comes nicely packaged and the manual is easy to understand. I've been real impressed with the performance of my new rig." Read more

    "...Had no problems installing or configuring. installed and overclocked patriotviper pc4-25600 ram to 3200mhz with xmp 2.0 with no problems." Read more

    26 customers mention18 positive8 negative

    Customers are mixed about the performance of the motherboard. Some mention it works great, while others say it didn't function at all. Some customers also mention that the RAM didn' t work and the B2 Ram slot didn''t work.

    "...Everything worked on first boot and I have no issues using a PCIe x1 SATA controller card, PCIe x4 network adapter, PCIe x16 GTX 750Ti, and a SATA..." Read more

    "...The motherboard has all of the options that I needed and everything works just fine...." Read more

    "...troubleshooting new pc parts to determine that the motherboard was probably not working...." Read more

    "works great with a Ryzen 5 2600x and a (2x8GB) 16GB Crucial Balistix Sport LT 2400mhz (SR)..." Read more

    4 customers mention0 positive4 negative

    Customers are not satisfied with the video issues of the motherboard. They mention that they are unable to get any video to post from either the board or the GPU, and that it wouldn't post. Some customers also report that the board won't do PCIe 3.0 x16 and that they cannot get NVME to post.

    "I tried several different combinations and I cannot get NVME to post on this MOBO. All I get is a black screen, no BIOS, no Windows. Nothing...." Read more

    "The first one was DOA - it wouldn’t POST. The second one turned on just fine and booted up quickly. I am less than happy but satisfied nonetheless...." Read more

    "...I had to return the first one as I was unable to get any video to post from either the board or the GPU...." Read more

    "...That should have been my first sign of trouble. The board would never POST. I'm sure this is a good board, even though a little older now...." Read more

    Great value
    5 Stars
    Great value
    I paid $89 + tax for this motherboard 07/2020 and so far so good. I paired it with a Ryzen 3600, 16gb of 3200MHz Crucial RAM, and a Silicon Valley 256gb NVMe. This was an upgrade for me, not a new build; as I already had a GTX 970, PSU, case, CD-Rom, and storage hard drives. I paid $390 shipped w/ tax included for the new stuff. What an upgrade. I've never owned an ASRock product before, but have heard of them. My motherboard had a sticker on the box that it was "Ryzen 3000 Series Ready" and I did not have to flash the BIOS (July, 2020). Total disassembly through reassembly + windows install was an hour and a half.It's simple, and cheap. I mostly browse YouTube but also casually play CSGO and COD so I wanted a PC upgrade that could handle both max settings, but for a decent price. I never dip below 200fps in CSGO 1920x1080 max settings and COD @ Max settings I get around 60fps. I can lower the settings and get well over 100fps without any dips. There are a ton of graphics options with COD.I use the Ryzen Master software in Windows to Auto-OC my 3600 to 4.2GHz. It's stable even with the stock cooler; it never gets over 70C under load. Idles around 45C. I'll be picking up a Hyper 212+ soon enough. I've had a Hyper on my previous build for 10 years and it worked really well to keep temps down; so I'll be doing it again. It's common sense that the lower your temps, the better the lifespan of the hardware. Just like a car engine. So buy an aftermarket cooler. I'm no overclocking expert and the Ryzen software really makes it simple. I always hated figuring out voltages, etc in the BIOS like I'm some computer programmer lol. The Ryzen software also stress tests the OC for you, which is neat.I did have to overclock the RAM in the BIOS settings though, as it defaulted to 2000MHz; but changing the speed was as simple as clicking the 3200MHz option and off we go. Recognized as 3200MHz w/ CPU-Z and Task Manager. Took 2 minutes.Also, as another reviewer posted, the NVME drives share the same lanes as two of the SATA ports.. so if you have an excessive number of SATA disk or SSD drives your NVME's will not show in device manager or elsewhere. The nice part of this mobo is that it has TWO NVME ports instead of just one. Lots of higher priced boards only have one slot.This setup POSTed first shot and I was up and running in windows within 30 min using a bootable flash drive. The bios is simple enough to navigate, and is nothing fancy. Set the boot priority and boot order and you're good to go. Onboard sound works fine. My 10 year old mobo was just as simple so I wasn't expecting anything fancy, especially for the price. I wanted a budget upgrade. I've never built an AMD rig before, but these Ryzen 3600 processors are monsters for the price. So happy I went with it. Coming from an i7 860 w/ 8gb of 1200MHz RAM and an ASUS P7P55D-E Pro mobo. I hope to get another 10 years out of this setup.Word of advice is DO NOT enable the "quick boot" option in the BIOS as it allows no way to get back into the BIOS without resetting the CMOS. I did it just to try it, and then had to jump the CMOS with a screwdriver to reset the BIOS. Just be forewarned it's a P.I.T.A. The battery is located under the graphics card so the screwdriver method was the best optionI'll update the review if anything catastrophic happens, Lol. Been 4 days so far. No crashes, no hiccups. Just smoooooth sailing at a decent price. Say a couple hail Mary's for me-------------------------------------EDIT UPDATE: 12/5/2020Computer still running strong. I put a Hyper Evo 212+ on the processor and it never goes above 55c under load in COD or CSGO. It's insane. 4.2GHz OC'd and never reaches 60C? You kiddin me? Arctic Silver 5 is always keyNo crashes thus far. Added another 1TB Silicon Power NVMe to store CSGO and COD on. Pretty unreal how fast this PC is for so cheap.OC has been stable no problemo. Hours of gaming.
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    Top reviews from the United States

    Reviewed in the United States on July 27, 2020
    Customer image
    5.0 out of 5 stars Great value
    Reviewed in the United States on July 27, 2020
    I paid $89 + tax for this motherboard 07/2020 and so far so good. I paired it with a Ryzen 3600, 16gb of 3200MHz Crucial RAM, and a Silicon Valley 256gb NVMe. This was an upgrade for me, not a new build; as I already had a GTX 970, PSU, case, CD-Rom, and storage hard drives. I paid $390 shipped w/ tax included for the new stuff. What an upgrade. I've never owned an ASRock product before, but have heard of them. My motherboard had a sticker on the box that it was "Ryzen 3000 Series Ready" and I did not have to flash the BIOS (July, 2020). Total disassembly through reassembly + windows install was an hour and a half.

    It's simple, and cheap. I mostly browse YouTube but also casually play CSGO and COD so I wanted a PC upgrade that could handle both max settings, but for a decent price. I never dip below 200fps in CSGO 1920x1080 max settings and COD @ Max settings I get around 60fps. I can lower the settings and get well over 100fps without any dips. There are a ton of graphics options with COD.

    I use the Ryzen Master software in Windows to Auto-OC my 3600 to 4.2GHz. It's stable even with the stock cooler; it never gets over 70C under load. Idles around 45C. I'll be picking up a Hyper 212+ soon enough. I've had a Hyper on my previous build for 10 years and it worked really well to keep temps down; so I'll be doing it again. It's common sense that the lower your temps, the better the lifespan of the hardware. Just like a car engine. So buy an aftermarket cooler. I'm no overclocking expert and the Ryzen software really makes it simple. I always hated figuring out voltages, etc in the BIOS like I'm some computer programmer lol. The Ryzen software also stress tests the OC for you, which is neat.

    I did have to overclock the RAM in the BIOS settings though, as it defaulted to 2000MHz; but changing the speed was as simple as clicking the 3200MHz option and off we go. Recognized as 3200MHz w/ CPU-Z and Task Manager. Took 2 minutes.

    Also, as another reviewer posted, the NVME drives share the same lanes as two of the SATA ports.. so if you have an excessive number of SATA disk or SSD drives your NVME's will not show in device manager or elsewhere. The nice part of this mobo is that it has TWO NVME ports instead of just one. Lots of higher priced boards only have one slot.

    This setup POSTed first shot and I was up and running in windows within 30 min using a bootable flash drive. The bios is simple enough to navigate, and is nothing fancy. Set the boot priority and boot order and you're good to go. Onboard sound works fine. My 10 year old mobo was just as simple so I wasn't expecting anything fancy, especially for the price. I wanted a budget upgrade. I've never built an AMD rig before, but these Ryzen 3600 processors are monsters for the price. So happy I went with it. Coming from an i7 860 w/ 8gb of 1200MHz RAM and an ASUS P7P55D-E Pro mobo. I hope to get another 10 years out of this setup.

    Word of advice is DO NOT enable the "quick boot" option in the BIOS as it allows no way to get back into the BIOS without resetting the CMOS. I did it just to try it, and then had to jump the CMOS with a screwdriver to reset the BIOS. Just be forewarned it's a P.I.T.A. The battery is located under the graphics card so the screwdriver method was the best option

    I'll update the review if anything catastrophic happens, Lol. Been 4 days so far. No crashes, no hiccups. Just smoooooth sailing at a decent price. Say a couple hail Mary's for me

    -------------------------------------
    EDIT UPDATE: 12/5/2020

    Computer still running strong. I put a Hyper Evo 212+ on the processor and it never goes above 55c under load in COD or CSGO. It's insane. 4.2GHz OC'd and never reaches 60C? You kiddin me? Arctic Silver 5 is always key

    No crashes thus far. Added another 1TB Silicon Power NVMe to store CSGO and COD on. Pretty unreal how fast this PC is for so cheap.

    OC has been stable no problemo. Hours of gaming.
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    18 people found this helpful
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    Reviewed in the United States on July 23, 2019
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    5.0 out of 5 stars Works great as the foundation for my rack mounted NAS
    Reviewed in the United States on July 23, 2019
    I decided to use this board and a Ryzen 1700 as the backbone for my 4U rack mounted network attached storage server. It supports ECC-DDR4 memory and that was important for this application. It can be tricky to find ECC memory that is on the QVL for this board but some searching in online forums will give you some additional options that also work. I'm using a pair of Samsung 8x2 and they work perfectly with this board and the Ryzen 1700. Everything worked on first boot and I have no issues using a PCIe x1 SATA controller card, PCIe x4 network adapter, PCIe x16 GTX 750Ti, and a SATA M.2 drive together on this board with FreeNAS. It's a great, no frills, budget board that I hope continues to serve me well for years to come.
    Images in this review
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    5 people found this helpful
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    Reviewed in the United States on August 5, 2019
    6 people found this helpful
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    Reviewed in the United States on January 1, 2020
    4 people found this helpful
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    Reviewed in the United States on December 7, 2019
    One person found this helpful
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    Reviewed in the United States on March 19, 2021
    Reviewed in the United States on August 12, 2022
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    Reviewed in the United States on July 18, 2021
    3 people found this helpful
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    Top reviews from other countries

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    Airton S.
    1.0 out of 5 stars veio com defeito
    Reviewed in Brazil on November 20, 2021
    Harish kushwaha
    5.0 out of 5 stars 6999₹ great price for b450
    Reviewed in India on April 4, 2023
    Fernando
    5.0 out of 5 stars Es barata y aguanta muy bien
    Reviewed in Mexico on February 9, 2021
    Xav
    5.0 out of 5 stars Bon rapport qualité-prix
    Reviewed in France on May 26, 2021
    koumbar
    5.0 out of 5 stars Rocket launcher!!!!!
    Reviewed in Canada on December 10, 2019
    One person found this helpful
    Report