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The ASRock B450M-HDV R4.0 is a compact Micro ATX motherboard designed for AMD Ryzen 2000 to 5000 series processors. It supports up to 64GB DDR4 RAM at 3200+ MHz (OC), features versatile video outputs (HDMI, DVI-D, D-Sub), and offers robust connectivity with 6 USB 3.1 Gen1 ports, 4 SATA3 ports, and an ultra-fast M.2 PCIe Gen3x4 slot. Ideal for budget-conscious professionals seeking reliable performance and future-ready expandability in a sleek form factor.




| ASIN | B07MWGKHR9 |
| Best Sellers Rank | #35 in Computer Motherboards |
| Brand | ASRock |
| CPU Socket | Socket AM4 |
| Chipset Type | AMD B450 |
| Compatible Devices | Personal Computer |
| Compatible Processors | Ryzen 2000/3000/4000/5000 Series |
| Customer Reviews | 4.4 out of 5 stars 3,492 Reviews |
| Global Trade Identification Number | 04717677337617 |
| Graphics Card Interface | PCI Express |
| Item Dimensions L x W x H | 12"L x 2.5"W x 9.6"H |
| Item Height | 9.6 inches |
| Item Weight | 730 Grams |
| Main Power Connector Type | 24-Pin |
| Manufacturer | Asrock |
| Memory Clock Speed | 3200 MHz |
| Memory Slots Available | 2 |
| Memory Storage Capacity | 32 GB |
| Model Name | B450M-HDV R4.0 |
| Model Number | B450M-HDV R4.0 |
| Number of Ethernet Ports | 1 |
| Number of Ports | 23 |
| Platform | Windows |
| Processor Socket | Socket AM4 |
| RAM Memory Technology | DDR4 |
| Ram Memory Maximum Size | 32 GB |
| S/PDIF Connector Type | Optical |
| System Bus Standard Supported | SATA 3 |
| Total Number of HDMI Ports | 1 |
| Total PCIe Ports | 2 |
| Total SATA Ports | 4 |
| Total Usb Ports | 8 |
| USB 2.0 | 2 |
| Warranty Description | 1 year |
K**E
Great and reliable
I’ve had this for about 6 months and I originally bought it to hold me over until I get a better board but this thing is actually really nice, I enjoy it being so cheap and also being a good size that would possibly fit a smaller build. It’s easy to use as well and it has a very simple and comfortable bios menu. I suggest that anyone looking for a budget motherboard that won’t break the bank but also provides a reliable build should buy this. There are a few small things I wish it had like Bluetooth and WiFi but thankfully the router is in my room so I can just connect my Ethernet. Another thing is that there’s only 2 Slot for RAM but keep in mind that you can always buy more powerful ram at a decent price so it’s honestly not a big deal. The board is great on power consumption and it’s fast so like I said. If you want that budget build that’s still going to hand you some good speed then this board is a good buy
C**S
Runs great! Even on older leftovers!
Got it for about $55 on sale here on Amzaon for a basic build with a cheap used AM4 2600 Ryzen 5 6 core I got on MarketPlace. Works great! No wifi but has onboard gigabit lan and an extra pci-e slot if you want to put a wifi card in or a 2.5 gb LAN card. Personally the usb 3.1 handles my TPLnk usb wifi adapter great. I was surprised it has onboard 7.1 audio but almost any graphics card will have better built in. Runs fine with 16 gigs of Corsair ddr4 2400 and an old Radeon video card I had laying around. Any new gpu will work but only at PCIE 3 speed. 1 M2 2280 gen 3 and 4 slot and 4 SATA connections will handle any storage configuration. Gen 5 M2 will work just not full speed. If you are on a budget, find a decent cheap used AM4 6 core, a 3060RTX or better gpu, a decent name brand Gold 750 power supply , at least 16 gigs of ram, a $20 120mm cpu cooler and throw it in a half decent Micro Atx or bigger case with a couple 120 mm or bigger fans, a 512 2.5" ssd or M.2 2280 and game your heart out.
C**H
Very good, for a basic board.
I had a prior build since early 2020, with an Antec PSU that shorted out recently and died with a bang, and in the process killed the motherboard (MSI). Fortunately, my M.2 NVMe Intel disc (with Windows 11 Pro) was intact, and I did not know then about the CPU (Ryzen 5 3400G Picasso) or RAM (16GB Crucial Ballistix 8GBx2). Typically, a PSU outputs first to the MOBO and CPU, and next to the RAM. Older memories were notoriously susceptible to current and used to die with the MOBO. Fortunately, things have gotten better. Antec was great in sending me a new replacement PSU under warranty. I needed a new replacement MOBO and wanted to stick with AM4 chipset without spending a lot. I found this board on Amazon at a great price, and the several positive reviews were encouraging. Throughout the years, I had always used MSI boards for my builds, except once (ASUS). This was my first experience with ASRock, and I am very pleased so far. The box I received states "AMD Ryzen Desktop 2000 Ready" and had an added sticker "AMD Ryzen 5000 Desktop Ready", and another "Windows 11 Ready". I imagine some (older) stock did not have the added (Ryzen 5000) sticker, which would explain some reviewers who had to update the Bios using an earlier generation CPU. When I received it, I did a minimal basic build outside the case, with the new PSU and tested my old CPU and RAM. It booted into BIOS and I was so relieved that the CPU and RAM were fine. I then put the Intel NVMe disc, placed the board in the case, hooked my old Plextor DVDRW, case fans and all the headers. Windows 11 Pro loaded up and all is good. The Bios/set up on this ASRock board is very easy to navigate and has a lot of 'AUTO' settings in the default parameters, and I only had to change few things. For the technically savvy, there are several settings you can adjust, but for most people, you will only need the boot menu, particularly for Win 11, and very few advanced configurations. I did not even use the included support CD. The box contains the MOBO, CD, Installation guide, 2 SATA cables, a small M.2 screw and the I/O shield. The guide and illustrations are very adequate. It has 2 DIMM slots (288 pin) and supports up to 64GB, 32GBx2, per ASRock. I bought new 32GB RAM (16GBx2) which was easily recognized. ASRock states for Picasso, the frequency is 2667/2933, but the new memory is 3200 and runs as such, with or without XMP. I am not a gamer and never overclock a CPU and don't use a discrete GPU anymore. It has on board USB2 (x2) and USB3 headers. The CPU connector is only 4 pin and if you have an 8-pin cable (4+4), you just split it. The MOBO is the standard 24 pin. There are 2 chassis fan connectors (4 pin and 3 pin), 4 SATA connectors, HD audio and a standard front panel system header. There is one M.2 and 2 PCI slots. The I/O shield is as shown (Single PS2, but supports Y-splitter, 2 USB2, 4 USB3, Gigabit LAN, rear audio, VGA, DVI and HDMI). It is a basic board (No WIFI, BT, M-Flash, USB C) and is very well priced. As such, I would recommend as a budget motherboard. Even though I am biased toward MSI boards (I guess force of habit), I will definitely keep this motherboard in mind. Thank you. I bought a second one to upgrade an older computer (Athlon A6 APU and FM2+ socket MOBO). It also had the Ryzen 5000 and Windows 11 ready stickers. Very satisfied, just like the first time. Recommend. Thank you.
S**Y
Overall an excellent value, but has a few design issues
For the price (normally in the $60 range) it is difficult to find a better value Currently shipping product supports Ryzen 3000 series out of the box. Review sites rate the AsRock B450 motherboards well (in the budget category) Everything went together well, the board's compact size made it easy to slide into my existing computer case without removing other components. Fired right up. The board comes with overclocking menus and abilities in BIOS. But I wouldn't bother. Unlike most boards that allow overclocking, this one has no "failure to boot" reset feature. If you make an OC change in BIOS that prevents boot up, then you are going to have to use the CMOS jumper on the motherboard to clear it. Made worse is that the slot for the video card is right on the edge of the motherboard. It's impossible to get to the clear CMOS jumper without removing the video card if using a smaller case (which most people would be using if wanting a micro ATX motherboard) And the SATA motherboard connectors are also right in line with the video card. So if you use a full size video card, the only way to get to the SATA connectors (say if one comes loose or you add another drive) is to pull the video card. The motherboard also only has two memory slots. That really shouldn't count as too much the negative. Just be aware and order the amount of memory you want - with two sticks - up front. For an extra $15 ASRock makes the B450 Pro4 motherboard that has four memory slots and two video card slots, one further located further up from the edge of the board so the video card out of the way of way of CMOS jumper. Looks like a full size video card would still hang over the SATA connectors though. If I had to do it over again, I'd still buy this board. Price is right and I didn't plan on overclocking anyway. MSI makes a similar board at the same price. But reviews here indicate a higher DOA rate with the MSI board. Build is this MB, Ryzen 5 3600X, 8GB crucial DDR4, Radeon RX570 video card.
A**R
it's tremendous to build a pc.
this motherboard is some one of the nicest motherboard i could trust.
M**H
Great budget board
Its good for the price, was able to boot up on the first try without issues. The BIOS UI looks better than I expected given the price point. Build quality is also pretty good for the price. I'm running a 5600x on it and its working well. There's three drawbacks, one is there's only 2 ram slots, the IO shield is a bit flimsy and the VRMs don't have heatsinks which might affect longevity, but these issues won't affect most people
A**I
Great motherboard to use for budget builds; gets the job done!
Great motherboard with great features. It has 64gb of memory capacity and will work great in an all black color schemed build. It was easy to install being the matx size and comes with usb 3.0 and 4.0 cables. It isnt too expensive and it has a great design with the black and gray. My only complaint is its lack of 5v 3pin connecters but you can't expect to find those on budget boards.
B**L
Unreliable – Huge Waste of Time and Effort
I was initially attracted to this ASRock B550 motherboard because of the low price, but it ended up costing me way more in time and frustration. It wouldn’t post out of the box, even after I flashed the BIOS using a USB stick through the BIOS menu. I tried multiple CPUs—Ryzen 5 3600, 3600X, and 1600—with no success. Swapped RAM, rechecked everything, and wasted a ton of thermal paste in the process. Got a replacement board, and it had the same issues. As soon as I switched to a different brand, everything worked perfectly. The cheap price isn’t worth it if the product doesn’t work. Would not recommend.
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