PRIME B550M-A Wi-Fi II mATX Motherboard w/ DDR4-3200, 7.1 Audio, Gigabit LAN, Dual NVMe M.2, Wi-Fi 6 802.11ax, BlueTooth v5.1
Asus Prime series is expertly engineered to unleash the full potential of 5000 Series, 5000 G-Series, 4000 G-Series 3000 Series AMD Ryzen CPUs and related Computer Hardware.
Boasting a robust power design via Asus DIGI VRM EPU technology, comprehensive cooling solutions and intelligent tuning options, Asus Prime B550 Series Motherboards provide daily users, gamers and DIY PC Builders a range of performance tuning options via intuitive software and firmware features.
- AMD AM4 Socket: Ready for Powerful 5 th. 4 th 3 rd Gen AMD Ryzen Processors designed for AMD Socket AM4
- Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2 utility
- Ultrafast Connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support
- Aura Sync RGB Lighting: Onboard addressable Gen 2 header and RGB headers for RGB LED strips, easily synced with Aura Sync-capable hardware
Tune It Your Way
Comprehensive controls form the foundation of the Asus Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivity.
Intelligent Control
- EPU: All-around Energy EfficiencyWith the Energy Processing Unit (EPU), you will enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode
- Fan Xpert 2: Flexible Cooling ControlsFan Xpert 2 software provides comprehensive control over system fans. Auto-Tuning mode intelligently configures all parameters with a single click. There’s also an Extreme Quiet mode that reduces chassis fan speeds to below the default minimum to keep your system whisper-quiet when performing light tasks. Fans can also be controlled via the UEFI BIOS
- Digi VRM Control: Precise Digital Power ControlThe Digi voltage-regulator module (VRM) delivers real-time control over voltage droop, automatically switching frequency and power-efficiency settings. It also allows you to fine-tune your CPU for ultimate stability and performance
The renowned Asus UEFI BIOS provides everything you need to configure, tweak and tune your system. It offers intelligently simplified options for PC DIY beginners, as well as comprehensive features for seasoned veterans.
- Advanced Tuning for Serious TweakersAn intuitive Advanced mode offered via the UEFI lets you take complete control. A built-in search feature makes it easy to find options, and various Advanced functions let you intelligently make nuanced adjustments so you can dial in performance just the way you want.
- Search FunctionQuickly and easily find the option or setting you need
- Asus User ProfilePort configuration settings between different BIOS versions or share them with friends
- EZ ModeEZ mode displays vital settings and stats and also offers guided wizards, drag-and-drop functionality, and one-click application of important settings. all to help you get your rig up and running in no time
- Intuitive Graphical Fan ControlFine-tune individual fan settings simply by dragging a curve with the mouse
- EZ XMPImprove DRAM performance with one click
- Aura On/Off mode (Stealth)Easily enable or disable Aura RGB lighting or every onboard LED, for a subdued aesthetic touch
Cool to the Core
Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.
- HeatsinksVRM Heatsink and Thermal Pads. A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance.
- Cooler by DesignPrime B550 series features comprehensive cooling controls that are configurable via Fan Xpert 2 software or via the UEFI BIOS.
- Multiple Temperature SourcesEach header can dynamically reference three thermal sensors. Fan Xpert 2 allows you to map the temperature of supported Asus graphics cards to optimize cooling for GPU- and CPU-intensive tasks
- Smart ProtectionA dedicated integrated circuit protects each fan header from overheating and overcurrent
- 4-Pin PWM/DC FanEach onboard chassis fan header supports PWM and DC mode
Build on a Solid Foundation
Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.
- NVMe PCIe 4.0 M.2 StorageThe M.2 (up to 64 Gbps) Slot supports up to 22110 length M.2s and provides NVMe SSD RAID support for an incredible performance boost. Create a RAID configuration with up to PCIe 4.0 storage device to enjoy the fastest data-transfer speeds on the 3 rd Gen AMD Ryzen platform
- Wi-Fi 6Intel Wi-Fi 6 AX200 The Intel Wi-Fi 6 AX200 module is compatible with the Dual Band 802.11ax standard and pushes theoretical peak bandwidth up to an incredible 2.4 Gbps. Perhaps more importantly for power users, it’s optimized for more efficient operation on crowded networks with a lot of competing traffic. As a Bonus, you also get Bluetooth v5.2 so you can connect to a host of external wireless audio devices like Powered Speakers, EarBuds, etc. Pair your Asus wireless Motherboard with an Asus Wi-Fi 6 Router to fully experience the networking potential of Wi-Fi 6!
- USB 3.2 Gen 2 Type-AThis Motherboard has numerous USB ports that support high-end rigs loaded with peripherals, including two rear-panel USB Type-A connectors with fast USB 3.2 Gen2 (10Gbps) connectivity when used with a compatible case
Little Things Make a Big Difference
Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.
AUDIO
Combined Onboard Features Deliver Elevated Audio Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
- Audio ShieldingSeparates analog digital signal domains, significantly reducing multi-lateral interference
- Separate Layer for Left and Right TracksEnsures minimal crosstalk between audio paths
- Premium Japanese CapacitorsThese premium parts provide an immersive sound signature, with exceptional fidelity
ASRock
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B550M Pro4
This model may not be sold worldwide. Please contact your local dealer for the availability of this model in your region.
IT’S TIME FOR B550 MOTHERBOARDS
Everything You Need For Computing
Nahimic Audio
Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.
The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game.
8 Power Phase Design
Featuring 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.
Premium 50A Power Choke
Compared to traditional chokes, ASRock’s premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.
2oz Copper PCB
2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it’s able to support the latest DDR4 memory modules with most extreme memory performance!
RULE YOUR OWN LIGHTING WAY. POLYCHROME RGB
This motherboard features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects.
The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters. The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters.
A SOLID M.2-SOLUTION PERFORMER
Dual M.2 For SSD, Supports Type 2280 M.2
Ready for higher capacity and even faster Type 2280 M.2 NVMe SSD to fulfill the need of performance. Hyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode.
AMD Smart ACCESS MEMORY
Conventional PC systems processor can only access a fraction of graphics memory and limits system performance. With AMD Smart Access Memory, the data channel gets expanded to harness the full potential of GPU memory, removes the bottleneck and increase performance.
Reinforced Steel Slot [PCIe 4.0 Version]
The reinforced steel slot is capable of supporting PCI Express 4.0 standard. The various benefits include: Extra anchor points Stronger latch Ensure signal stability Make sure heavy graphics cards to be well-installed.
Dual USB 3.2 Gen2 (Type-A Type-C)
This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear i/o for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates.
USB 3.2 Gen2 doubles the data transfer rate
USB 3.2 Gen2 Type-C doubles the charge speed!
Charge speed may vary due to controller protocol, please make sure your device can support 3.0A charging.
M.2 (KEY E) For Wi-Fi
Besides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot.
Post Status Checker
An easy troubleshooting tool that shows the CPU / DRAM / VGA / BOOT operation every time you start up the system. Post Status Checker is an fast and easy way to identify the source of the problem.
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, 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.
XXL Aluminum Alloy Heatsink
Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.
Sapphire Black PCB
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
High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.
2oz Copper PCB
Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.
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 only with processors with integrated graphics. Please check CPU support list from each motherboard webpage.
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.
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.
ASRock USB 3.2 Gen2- ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)- ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s)ASRock Super Alloy- XXL Aluminum Alloy Heatsink- Premium 50A Power Choke- Sapphire Black PCB- High Density Glass Fabric PCB- 2oz Copper PCBASRock Steel Slot Gen4ASRock Full Coverage M.2 HeatsinkASRock Hyper M.2 (PCIe Gen4x4)ASRock POST Status Checker (PSC)ASRock Full Spike Protection (for all USB, Audio, LAN Ports)ASRock Live Update APP Shop
For Ryzen Series APUs (Picasso, Cezanne and Renoir), ECC is only supported with PRO CPUs.Please refer to below table for AMD non-XMP memory frequency support. For more details.
Ryzen Series CPUs (Vermeer):
Ryzen Series CPUs (Matisse):
Ryzen Series APUs (Cezanne):
Ryzen Series APUs:
Ryzen Series CPUs (Picasso):
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label x=1 or 2DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
Actual support may vary by CPU
The Max shared memory 16GB requires 32GB system memory installed.
Picasso supports HDCP 2.2 with HDMI 2.0 Port
AMD Ryzen series CPUs (Vermeer and Matisse)- 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode) AMD Ryzen series APUs (Cezanne and Renoir)- 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode) AMD Ryzen series APUs (Picasso)- 2 x PCI Express x16 Slots (PCIE1: Gen3x8 mode; PCIE3: Gen3 x4 mode)
M2_2 and SATA3_5_6 share lanes. If either one of them is in use, the other one will be disabled.
Supports NVMe SSD as boot disks
Support in total up to 5V/3A, 15W LED Strip
The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP and CHA_FAN4/WP can auto detect if 3-pin or 4-pin fan is in use.
Software- ASRock Motherboard Utility (A-Tuning)- ASRock XFast LANUEFI- ASRock Full HD UEFI- ASRock Instant Flash
Manual
The format of our documents are in PDF files. If you have not installed Adobe Acrobat Reader, please get it from Adobe.
| User Manual | English | Global | China |
| User Manual | 日本語 (Japanese) | Global | China |
| BSMI | Multi-Language | Global | China |
| Quick Installation Guide | Multi-Language | Global | China |
| RAID Installation Guide | English | Global | China |
| RAID Installation Guide | 繁體中文 (T.Chinese) | Global | China |
| RAID Installation Guide | 简体中文 (S.Chinese) | Global | China |
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
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.
© 2023 ASRock Inc. All rights reserved. Information published on ASRock.com is subject to change without notice. | Terms of Use Notice | Privacy Policy| NFT Terms Condition
Asus Prime B550M-A Wi-Fi II micro ATX motherboard AMD B550 AM4 with dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, HDMI, DVI-D, D-Sub, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB lighting support
12.08/mo. in 12 payments (not incl. shipping, taxes) on eligible credit cards. Terms apply. Learn Online only.
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No applications. No new accounts. Pay in Installments at check out using eligible credit cards from participating banks.
Pay over time
Enjoy the flexibility of splitting qualifying purchases into fixed equal payments made over a defined period of time.
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All you need is your eligible credit card at checkout. No need for further credit approval, paperwork, or fuss.
Predictable payments
No surprises—it’s always clear what you owe and when you owe it. Simply pay through your usual credit card statement
Participating banks provide installment payment plans enabled by Visa´s payment technology. Select Visa cards and other network cards may be eligible. Contact your bank to learn more.
Installments are not available on all credit cards and are only offered by certain participating financial institutions to their eligible card holders on qualifying purchases. Contact your card issuing bank to see if you are eligible for installments and for more details. Learn Visa is a trademark of Visa Int., used under licence.
AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, HDMI, DVI-D, D-Sub, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB lighting support
- AMD AM4 Socket: Ready for Ryzen 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors
- Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers, and Fan Xpert 2 utility
- Ultrafast Connectivity: Dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, USB 3.2 Gen 2 Type-A support
- Aura Sync RGB Lighting: Onboard addressable Gen 2 header and RGB headers for RGB LED strips, easily synced with Aura Sync-capable hardware
Asus Prime series is expertly engineered to unleash the full potential of 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series AMD Ryzen platform. Boasting a robust power design, comprehensive cooling solutions and intelligent tuning options, Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features.
Comprehensive controls form the foundation of the Asus Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work. maximizing your productivity.
All-around Energy Efficiency
With the Energy Processing Unit (EPU), you’ll enjoy system-wide power savings. The EPU automatically optimizes power consumption and maximizes savings with Away mode.
Prime B550 series is engineered with multiple onboard heatsinks and an array of hybrid fan headers to ensure your rig stays cool and stable under intense workloads.
VRM Heatsink and Thermal Pads
A VRM heatsink with underneath thermal pad improves heat transfer from the MOSFETs and chokes for better cooling performance.
Build on a Solid Foundation
Prime B550 motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.
Little Things Make a Big Difference
Prime B550 series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive RGB lighting controls that let you customize your system to create a uniquely personal look.
Outstanding AudioCombined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
Separates analog/digital signal domains, significantly reducing multi-lateral interference.
Separate Layer for Left and Right Tracks
Ensures minimal crosstalk between audio paths.
Where do you Connect Your AIO Pump on your Motherboard?
You did it. You finally caved in and bought a liquid cooler—if for nothing else than to shut up that one annoying friend that keeps bugging you to get liquid cooling.
And now that it’s finally here and…
How exactly are you supposed to use it without frying your CPU?
The NZXT Kraken x63 280mm AIO RGB CPU Liquid Cooler – Image-Credit: NZXT
Well, let’s get some short questions out of the way real quick so we’re on the same page before diving into the main topic of this Article: How to connect your AIO properly!
What does AIO stand for?
Well, AIO stands for “All In One,” and in PC cooling describes a liquid Cooler that is ready to be used without the need for custom tubing or liquid setup. It’s plug-and-play and can be installed more easily than custom liquid cooling.
What Is an AIO Pump?
On most AIO liquid coolers, the pump is the part you place right on top of the CPU.
The pump is responsible for moving the liquid through the radiator and tubing.
When it comes to any liquid cooling setup, the pump is the heart of the system. This is especially true for a closed-loop system.
If your pump is on the fritz, your cooling performance will go down significantly, to the point where the boxed air cooler you get with your CPU would do a better job of cooling it.
So you must ensure that your pump is mounted properly, thermal-paste and all, working well and that it’s not making any weird noises.
Where to Connect Your AIO Pump
Trying to figure out where to connect your AIO pump can get confusing, as there are so many headers for fans on a motherboard.
But it has gotten quite a bit easier these days.
Here’s which cables are usually attached to an entire AIO:
- 3-Pin Connector
- 4-Pin Splitter Connector(s)
- SATA Connector
- (USB Connector)
You’ll find these kinds of schematics in your AIO manual – NZXT
So what are all these cables meant for, and where should they be plugged in?
3-Pin Connector: The 3-Pin Connector should be plugged into your Motherboard’s CPU_FAN Header. It controls the Pump and Fan speeds on your entire AIO. It also ensures the Motherboard does not show a CPU Fan Error when booting.
4-Pin Splitter Connectors: These are meant to be connected and power all your Radiator Fans and ramp them up or down depending on what CPU Temperature is reported by the Motherboard through the CPU_FAN Header.
SATA-Connector: The SATA-Connector should be plugged into a free SATA cable of your choosing and will power the Pump Motor of your AIO and any RGB, LED-Display, or Tach-Features you might have.
USB-Connector: The USB-Connector should be plugged into a free USB 2.0 Header on your Motherboard and is meant to control your AIO and any RGB Features through Fan-Software.
Fan Header placement on Asus’ Maximus Hero Motherboard
There are a lot of different AIOs on the market. Here’s what Corsair’s H150i Manual says about connecting your AIO:
Because the entire AIO is plugged into the CPU_FAN Header, this also means that both the Pump and Radiator Fans are temperature controlled.
The Pump, though, will be less prone to wear and tear if it runs at a static speed. This is why there is an AIO_PUMP or PUMP_HEADER on many Motherboards. You can plug in your Pump (if it comes with a separate 3-Pin connector) to this Header to control it separately from the radiator’s fans or set it to a fixed 50% to 100% PWM speed.
What if Your Motherboard Doesn’t Have an AIO Pump Fan Header?
Don’t worry; you can still make it work.
If not, here’s a little secret. Those pump-specific headers are all glorified SYS_FAN headers in disguise.
So if your motherboard doesn’t have any AIO_PUMP headers or similar, you can always use SYS_FAN or CHA_FAN as a substitute to plug in your pump if you have a spare one available. It will work the same.
Double-check in your BIOS’s Hardware Monitor, though, that the Header that powers your AIO Pump is set to run at 100% speed.
In Summary
And that was a short article on where you can plug in your shiny new AIO liquid cooler.
If you want a TL;DR on it, the gist of the matter is that you have many options when it comes to where you want to plug in your pump.
You can plug it into an AIO_PUMP header, PUMP_HEADER, W_PUMP, or any other variation of that, and you can even use CPU_FAN or SYS_FAN if you really have to as well.
FAQ
Can you plug an AIO pump into a fan header?
Yes. It will work perfectly fine. You’ll just lose a system fan header.
Can you plug an AIO pump into CPU OPT?
Yes. But it’s really not recommended. CPU_OPT should ideally be saved for the fans that go on your CPU cooler, whether it be liquid or air. That’s because CPU_OPT is a special connection that your motherboard uses to ensure that your CPU is always cool.
It detects whether your CPU is thermal throttling (getting too hot) and increases or decreases the speed of the fans appropriately.
Can a 3-pin fan plug into a 4-pin connector?
Yes. You won’t get the same level of control as with a 4-pin PWM fan, but you can still plug in a 3-pin fan to a 4-pin connector perfectly fine. For more info, check out our PWM vs. DC Fans article.
How can you tell if your liquid cooling Pump is working?
The easiest way to make sure your AIO Pump is working is by touching it with a finger to see if it’s vibrating.
Depending on where you plugged in your Pump you’ll also be able to read your Pump speed in your BIOS or with Monitoring tools such as HWInfo.
Over to you
Hopefully, that explained all your questions about where to plug in your AIO cooler on your motherboard!
Got any other unanswered questions about them? Ask us in the Комментарии и мнения владельцев or our forum!
