b450 pro4 Motherboard

Review Of The B450 Pro4

The ASUS B450 Pro4 is a great motherboard for gamers. It has all the features you would need to play games at 1080p, and it supports overclocking. 

This motherboard is perfect if you're upgrading from an older PC or building a new one from scratch. 

The B450 Pro4 by ASRock is a great motherboard for gamers looking to get the most out of their CPU. The board has an integrated M.2 slot, 3 PCI-E slots, and 6 SATA ports, making it perfect for anyone who wants to build a high-performance rig without breaking the bank. The board also features an RGB LED header that syncs with every other component in your system, giving you complete control over how your PC looks while gaming or when idle. 

ASRock has a new value MATX board with the latest B450 chipset from AMD; it's got everything you need and nothing you don't.

The review of the B450 Pro4 motherboard can give you essential information about this product. There are plenty of ports on the back and a PS/2 port for those with old school peripherals. In addition, you'll find 4 SATA ports and 2 M.2 slots for storage, RGB headers for aesthetics and gigabit Ethernet for connectivity. Whilst the audio is the Realtek ALC892 codec and not the ALC1220 we see on 'gaming' products, it's still going to be good enough for all but the most hardcore of gamers, and it fits the price point well.

The Asrock B450M Pro4 comes in at just $70, and while it might only pack a 3+3 phase VRM, both the Vcore and SoC portions of the VRM feature passive cooling, something no other MicroATX B450 board offers. Cooling on the SoC VRM is important, particularly if you plan on using a Raven Ridge APU, and crucially if you plan to overclock the integrated Vega GPU.


b450 pro4 Melbourne


  • AMD AM4 Socket
  • 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)


  • Dual-Channel DDR4 Memory Technology
  • 4 x DDR4 DIMM Slots
  • AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC)/ 2933/2667/2400/2133 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(OC)/2667/2400/2133 non-ECC, un-buffered memory*
  • * For Ryzen Series CPUs (Raven Ridge), ECC is only supported with PRO CPUs.
  • * Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/)
  • Max. the capacity of system memory: 64GB
  • 15μ Gold Contact in DIMM Slots

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.

Triple Monitor

Graphics, graphics and even more graphics! You've demanded 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.

Solid Capacitor Design

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

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 reducing noise levels significantly and satisfying even the pickiest audiophiles.

Digi Power

Unlike traditional motherboards that use analog power, this motherboard uses a next-generation digital PWM (Pulse-Width Modulation) design, which provides CPU Vcore voltage more efficiently and smoothly so that the stability and lifespan of the motherboard are greatly enhanced.

Full Spike Protection

Some sensitive digital components on the motherboard are vulnerable to power surges, and 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.

ASRock B450 Pro4 and B450M Pro4

b450 pro4 Motherboard Asus

The ASRock Professional series drop the gaming-themed stylings of the gaming range, with both the B450 Pro4 and B450M Pro4 featuring a subtler black PCB, with a contrasting grey pattern printed on. The Pro4 models are aimed at professional users looking for a solid foundation to build a system without sacrificing quality but without burdening the budget away on unnecessary componentry and features.

While the primary difference between the B450 Pro4 and B450M Pro4 is the form factor, the larger and ATX sized Pro4 model has a full-length PCIe 3.0 x16 slot, a secondary full-length PCIe 2.0 x4 slot and a total of four PCIe 2.0 x1 slots. The smaller B450M Pro4 is of the microATX standard but also features two full-length slots with the top slot operating at PCIe 3.0 x16 and the bottom one running at PCIe 2.0 x4; a single PCIe 2.0 x1 slot is also present. The similarities don't just stretch to design, but they look to share identical power deliveries with a 9-phase offering running in a 6+3 configuration; even the power delivery heatsinks are identical, with the chipset heatsink on the B450M Pro4 model being smaller due to size constraints.

Storage-wise, the ATX sized B450 Pro4 has a total of six SATA 6 Gbps ports offering support for RAID 0, 1 and 10 arrays; the smaller microATX B450M Pro4 has a total of four SATA 6 Gbps. The Pro4 pairing also features two M.2 slots, each with the best slot operating at PCIe 3.0 x4, while the second M.2 slot on the ATX B450 Pro4 has support for both SATA and PCIe 3.0 x2 drives. However, due to space constraints on the microATX B450M Pro4, the second M.2 slot is located on the rear of the PCB and only supports SATA 6 Gbps SSDs; this slot shares bandwidth with the SATA port number 3, meaning only one can be used at any one time. 

On the rear panels. Both the B450 Pro4 and B450M Pro4 share near-identical connections, with the biggest difference being that the B450 Pro4 has a DisplayPort 1.2 video output, while the B450M Pro4 has a DVI-D instead. Both models feature a single HDMI port and a legacy D-sub output. On the rear panel for both are a single USB 3.1 10 Gbps Type-A port, a single USB 3.1 10 Gbps Type-C port, four USB 3.1 5 Gbps Type-A ports, two USB 2.0 ports, a PS/2 combo port, a single LAN port powered by a Realtek RTL8111H Gigabit controller and three 3.5mm audio jacks which are controlled by a Realtek ALC892 audio codec.


The software offerings are limited but not absent. The ASRock App Shop is the best way to access and download the latest version of the utilities.

  • ASRock A-Tuning allows for overclocking, monitoring and fan control.
  • ASRock Polychrome RGB manages the LED effects, and we found that it was also 100% compatible with the new HyperX Predator RGB modules.
  • ASRock Xfast LAN will provide software-based QoS. Whilst this seems to work fine, we always recommend shutting down any apps that impact bandwidth when gaming online.
  • ASRock Live Updates helps to find the latest versions of drivers and utilities. I've used this in the past on other ASRock motherboards and haven't had any issues with it. The application didn't have any updates to find for the B450M-Pro4 as the board was unreleased at the time of review.


The onboard audio solution uses the Realtek ALC892 Audio Codec with ELNA Audio Caps. The ELNA caps are rated at 3uA leakage current, reducing noise levels compared to lesser rated caps. In order to use 7.1 channel audio, you will need also to use the front panel audio connections as there are only 3 x 3.5mm plugs on the rear I/O section of the motherboard. There is no provision for optical output, but the digital output is available through the HMDI port if you use an APU like the Ryzen 2200G or 2400G.

Both B450 and the B450M Pro4 are designed for professional and regular system users. However, gaming on either model wouldn't negatively affect performance other than the lack of RGB lighting, which seems to be the most popular feature on gaming branded boards. The B450 Pro4 is set to retail for around $89.99, with the microATX sized B450M Pro4 coming in at a slightly cheaper $79.99.

B450 Pro4 is a motherboard from MSI. It has many features that gamers will find helpful, such as an onboard wifi card and plenty of ports for USB devices. 

The MSI B450 Pro4 provides the best value with its excellent price to performance ratio. The motherboard also includes many features that are not available on other boards in this class, such as dual M2 slots and USB 3.1 Gen2 support for Type-C devices. In terms of design, the board is smaller than most others in its class, but it has four DIMM slots, giving you room to upgrade your system's memory capacity at any time without having to replace the entire board itself. This makes it a great buy if you want. 

Frequently Asked Question About B450 Pro4

The ASRock B450M Pro4 is already good value, but being able to easily access additional performance via relatively safe CPU overclocking and intelligent data prioritisation for frequently accessed files will benefit owners.

For those looking at building a Ryzen system, the B450 Steel Legend is a solid choice and a great value at just over $100 at our favourite online retailer. Overall, ThinkComputers gives the ASRock B450 Steel Legend a 9 out of 10 scores!

We know from previous tests that our 2700X CPU can achieve 4.35GHz with 1.45v. However, pushing our voltage above 1.42v on the ASRock B450M Pro4 caused issues, limiting us to 1.4v at best. However, we did manage a permanent overclock to the 2700X of 4.2GHz across all eight cores.

Yes, the AsRock B450M Pro4 is a good fit.

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