Best Motherboards for i9 9900K 2021: What To Buy? | Post Mania

Setting up a new computer has never been so easy for a high-performance-based processor so you will likely want to have the best motherboard for i9 9900k. This processor is so much worthy of a better motherboard. When optimizing the overclock voltage you need something compatible enough to prevent burnouts.

This processor is optimized both for design rendering and gaming configurations. As it is freely available at such an amazing price of nearly 300$ nowadays, all you need is a godly MOBO to enjoy it to the fullest.

In this guide, I’ve featured the most optimal motherboards for i9 9900k and critical details to let you choose the most optimal for you. So, if you’re searching for a model that meets all of this processor’s critical features then You’ll find it here.

List of Top 6 Motherboards for i9 9900k

There are several motherboards but we’ve only extracted the most optimal MOBO for you. So we ended up featuring the top 6 high-quality motherboards that will ultimately help you to build a perfect dream rig.

MotherboardChipsetGraphics InterfaceForm Factor
Gigabit Z390 AORUS MASTER Z390HDMI | 1*PCIe 3.0 x16 + 1*PCIe 3.0 x8ATX
ASRock Z390 TaichiZ390HDMI | 3x PCI-Express 3.0 x16 Slots), 2x PCI-Express 3.0 x1 Slots ATX
ASUS ROG Maximus XI HeroZ390HDMI/DP | PCI-Express x16ATX
Asus ROG Maximus XI Gene Z390Z390HDMI | PCI-Express x4, PCI-Express x16mATX
MSI MEG Z390 ACE LGA1151Z390HDMI | PCI-Express x4, PCI-Express x16ATX
Asus ROG Strix Z390Z390HDMI | PCI-EATX

Here are our top extracted motherboards for i9 9900k based on performance and quality.

Gigabit Z390 AORUS MASTER 

Z390 AORUS Master is counted as one of the best Motherboard for i9 9900k with an RGB Fusion looks incredibly amazing on its own. And that’s not it but it also provides enhanced hardware embedded in it featured below.

The thing that makes it the best motherboard for i9 9900k is its enhanced overclock useability, so you can easily overclock to 4.5+ GHz using 12+2 IR Digital VRM (PowrStage enabled System). So even after overclocking to its fullest, you’ll enjoy a stable performance.

Dual DDR4 unbuffered non-ECC is installed in this motherboard. Rams are optimized for 4400mhz speed and a max of 4 DIMMs can be installed. A USB auto charger and a LAN Adapter for Gigabit while for wireless systems a CNVi wireless system is installed.

Realtek ALC1220 chipset is used for enhanced audio quality. Sabre DAC audio suite can also be installed on this motherboard to manually configure all of the audio configurations.

Besides being so functional, this motherboard also has an amazing BIOS UI and other Fan Control options. For its extreme features, it is counted as the best motherboard for i9 9900k.

Just keep the bottleneck aside, because it will give you a maximum boost and stable overclocking.

Technical Specifications:

Voltage Regulator Module (VRM)12 +2 Phase IR Digital VRM
RAM TypeDDR4 (4400mhz)
Display Interface HDMI
AudioRealtek ALC1220 chipset
WIFIIntel CNVi 2×2 802.11ac wireless
Graphics Interface1*PCIe 3.0 x16 + 1*PCIe 3.0 x8
StorageM.2 * 3
Form FactorATX

Salient Features:

  • Advanced Thermal Design (30%* lower MOSFET temperatures)
  • Ultra-Fast WIFI (up to 1.73Gbps)
  • Comprehensive Audio Suite
  • Triple M.2 
  • SB Turbo Charger
  • AORUS 360 Armor
  • RGB Fusion Lights

ASRock Z390 Taichi

ASRock Z390 Taichi is the best ASRock motherboard for i9 9900k and is affordable. ASRock is famous for manufacturing high-quality gaming motherboards. So if you need quality and performance while being on a budget-friendly plan then nothing is better than ASRock Z390 Taichi.

Hyper BCLK Engine II system is installed in ASRock Z390 Taichi which assure that the power consumption of i9 9900k can be handled effectively. So, the overclocking will be stable and reliable.

For enhanced internet connectivity, it offers a Gigabit LAN connection, plus an intel 802.11 ac wireless wifi adapter. So you’ll never experience a network lag while gaming on i9 9900k with a speedy connection. Moreover, you get Bluetooth 4.2.

4 DDR 4 DIMMS optimized at the rate of 4200 MHz is supported and also in overclocked variants. M.2 * 3 ports are there to provide extensive storage with 8 SATA 3 sockets. 

While having so many overclocking features, this motherboard also has an additional Realtek audio chip DTS compatible.

Another advanced feature is that you can add 3 high-speed PCIe components at once. Additionally, it provides ASRock Polychrome Sync Function, so you can manually configure it on your own.

Technical Specifications:

ChipsetIntel Z390
RAM TypeDDR4 (4400mhz)4.0
Display Interface HDMI
AudioRealtek LC1220
WIFIIntel 802.11ac
Graphics Interface3x PCI-Express 3.0 x16 Slots), 2x PCI-Express 3.0 x1 Slots 
StorageM.2 * 3 , 8 SATA 3 sockets
Form FactorATX

Salient Features:

  • Hyper BCLK Engine II Smooth Overclocking
  • Extra SATA and M.2 Connectors for extensive storage
  • Excellent Audio Quality with Realtek LC1220
  • Engaging design and RGB System

ASUS ROG Maximus XI Hero

Need a perfect tool to handle the extreme overclocked voltage, yes ASUS ROG Maximus XI Hero is overall perfect for you. It is probably the best overclocking motherboard for i9 9900k in the market. 

It’s the time to overclock the processor near the burnout point but without the tension of getting it burnt. A 5-way optimization system is installed in this system that predicts the burnout temperature and handles it on its own. It works more accurately with the new technology Optimum III that ultimately helps in increasing DRAM stability. You can manually configure MHz.

FAN Xpert 4 mechanism helps in auto fan speed relative to the temperature. That’s what makes it enhanced. Additionally, it offers M.2 * 2 ports and 4DIMMS of DDR4 rams optimised at the rate of 4400 MHz. Aura Sync RGB responsible for its enhanced appealing design.

For enhanced network connectivity, you’ll get a 2×2 MU-MIMO 802.11ac wireless adapter which lets you work flawlessly. This motherboard is designed for everyone, who needs top-notch overclock performance and enhanced useability.

Technical Specifications:

ChipsetIntel Z390
RAM TypeDDR4 (4400mhz)4.0
Display Interface HDMI/DP
AudioSupremeFX S1220A
WIFI2×2 MU-MIMO 802.11 ac
Graphics Interface2 @ x16 PCIe slots,x8/x4+x4 “1 max @ x4
StorageM.2 * 2
Form FactorATX

Salient Features:

  • 5-Way Optimization Mechanism.
  • Optimum II (Maps Memory Signals)
  • Optimized Overclocking Stability
  • Cooler by design
  • Custom Personalized
  • SupremeFX

Asus ROG Maximus XI Gene Z390

Asus ROG Maximus XI Gene Z390 is the best premium motherboard for i9 9900k out there in the market. 

A 5-way overclocking system is installed in this MOBO which provides an extra overclocking feature that will let you work seamlessly. To control the temperature, the FanXpert 4 system provides an exceptional overclocking feature. 

Dual-capacity DRAM slots help you to increase the memory capacity of your system which drastically helps you to optimize the working. Opti-MEM III technology allows you to maximally overclock the system to the end of burnouts.

LED features are optimized in it which can be manually adjusted using various software. Exceptional design is embedded with extreme functional features including I/O shields and installed heatsinks.

M.2*4 storage devices are installed in it to extend storage. For enhanced connectivity, there is next-level wifi system is available to support this feature.

Technical Specifications:

ChipsetIntel Z390
Display Interface HDMI
AudioSupremeFX S1220A
WIFIIntel Wireless-AC 9560
Graphics InterfacePCI-Express x16
StorageM.2 * 4
Form Factor mATX

Salient Features:

  • ASUS Aura Sync RGB Fusion.
  • 5-way Optimization overclocks
  • FanXpert 4 for dynamic cooling
  • Asus Optic-MEM II 


So, you are in search of the Best RGB motherboard for i9 9900k, which will be better than MSI MEG Z390 ACE LGA1151 as it provides a unique and beautiful design at an affordable price. Just dominate the gaming world with this amazing MOBO.

Functional MSI tools help you optimize the processor for gaming, work and multiple industries. It ultimately helps you automate all the overclocking which gives you a smooth and reliable performance.DDR4 ram optimized at the rate of 4500 MHz can be installed in this rig.

3 turbo M.2 ports are available to add additional SSDs to the system which is boosted by Shield Forza.

The foremost feature for what this motherboard is popular is its exceptional design. You can see all the items at their structure position. Mystic Light Infinite system provides amazing LED configuration which offers more than 19milliion colours variation which can be manually configured by the user.

Optimized connectivity is featured in it which has advanced Killer E2500 LAN capability. And Audio boost technology with Nahimic 3 is also installed in it.

Technical Specifications:

ChipsetIntel Z390
Display Interface HDMI
AudioALC1220 with Nahimic 3
Graphics InterfacePCI-Express x4, PCI-Express x16
StorageM.2 * 3
Form FactorATX

Salient Features:

  • Mystic Light Infinity 16.8Millions colour variations
  • Audio Boost HD with Nahimic 3
  • Pre-installed I/O Shielding
  • Excellent Quality and Functionality

Asus ROG Strix Z390

So if you have tight pockets and need the best budget-friendly motherboard for i9 9900k then Asus ROG Strix Z390 is perfect for you. As it provides both quality and performance at a low price.

While maintaining low-cost criteria this build also has amazingly optimized functional features including 5-way overclock system and FanXpert4 as competitive to other expensive MOBOs. 

It also has a gaming guardian feature that protects DRAM with additionally added ESD guards. M.2 heatsink is also installed to boost your SSDs. A MOS-Fan Bracket is adjusted to keep your processor cool.

Don’t forget the amazon sound assistant and chipset Supreme FX LC1220 HD  for excellent sound quality. At this price, this is the best budget-friendly motherboard for i9 9900k you are getting.

Technical Specifications:

ChipsetIntel Z390
Display Interface HDMI
AudioSupreme FX LC1220 HD
Graphics InterfacePCI-E
Form FactorATX

Salient Specifications:

  • 5-way Optimization overclocks 
  • FanXpert 4 delivers dynamic system cooling
  • Gamer’s Guardian Feature
  • Pre-mounted I/O shield

What Features to Look for in the Motherboard for i9 9900k?

In this guide, we’ve already featured top-notched motherboards but there are many features in various variants. So which motherboard you should buy and how to differentiate it?

Here are all the critical features you need to know when buying a motherboard for i9 9900k below.

Chipset & Socket:

To support i9 9900k there are only two chipsets out there Z390 and Z390 which are the most suitable and reliable as well. In this guide, we’ve already featured the best Z390 motherboard for i9 9900k.

It’s not totally about the chipset but also depends on the socket as for i9 9900k, LGA 1151 is a must. As these motherboards have the preinstalled compatible port but you need to be extra careful.

OC Capability:

If you are paying hundreds of dollars for a special MOBO, It must support high OC capacity as for the killer CPU i9 9900k. We’ve also featured the best overclocking motherboard for the i9 9900k in this guide to help you get the most reliable one.

One of the main tools of the motherboard support OC is the voltage regulator module as every high-quality motherboard for i9 9900k has it pre-installed but yet asks for it. 12+2 phases are responsible for high-quality VRM.

The motherboard must support extra functionality to handle temperature when optimizing the OC of the processor and RAMs. Quality MOBOs have M.2 heatsinks and extra heatsinks for VRM and RAMs to keep it cool and prevent any type of burnout.

Other OC functions include FAN auto-speed, BIOS functionality and package software for OC configuration. Better the OC ability of a MOBO, better the performance of the i9 9900k. So it will be worth your money.

PCIe ports and RAMs Expandability:

Expandability is one of the essential components of the best motherboard for i9 9900k, So what needs to be considered – These include PCIe GPU ports, RAMs DIMMs and M.2 ports.

Let’s consider you want to build a beast Gaming PC with multiple GPUs SLI together. So you just need to add extra GPU and if there are no places in the motherboard then it will overall affect your time and money. If you want to install at least 64 GB of RAM, I recommend you go for 4 RAM slots.

Also, add 3.0 ports and HDD connectors to your list moreover consider ethernet port and HDMI / Display connector will be profitable for you.

Audio And RGB:

A super-gaming computer must be perfect in all aspects, consider the audio connector. Many high-quality MOBOs have 5.1 and 7.1 audio. So you will not need to add a sound card to it. Experience a home theatre environment in your gaming room.

Here what you are paying for, The RGB lights are what reflect the fanciness and make your MOBO more appealing. It also shows your dedication to spend money on your system and your interest. With an eye-catching combination of these light strips, you can enhance even the dullest case.

Wireless and LAN Connectivity:

To operate your work seamlessly, you have to get high-quality network connectivity. Many of the motherboards for i9 9900k in this guide have high-quality hardware installed for wireless and LAN connection.

Additionally, check which type of Bluetooth it supports whether it is 4.0 or 5.0 and for the wireless connection, it must support a larger bandwidth of 2.4ghz and 5ghz so to support a performance-based connection.

Form Factor:

Another thing to look for is the form factor, the best ATX motherboard for i9 9900k supports an extensive case but it offers additional PCIe ports and expandability.

If you have a smaller case you may want to consider a mini-ATX / mATX which supports a smaller MOBO design and easily fits in a compact system case. But it may have fewer ports but saves space and makes room for new components in the system.

End Line:

Are you really into building a beast PC with an overkill CPU i9 9900k? Don’t hesitate to go through our ultimate guide to extract the best motherboard for i9 9900k. I hope, it will help you to choose the best suitable MOBO.

Even if you are still confused and need more information, don’t hesitate to drop a comment!

Last Updated on November 10, 2021

Muhammad Usama
Muhammad Usama is a versatile writer who covers a wide range of topics with a focus on research-based content. Whether he is writing about current events, science, technology, or any other topic, Muhammad Usama is sure to deliver thought-provoking and informative content that is sure to engage and educate his readers.

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