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List of Best i9 9900K Motherboards to buy in 2021. Review and Buying Guide for LGA1151, Z390 Motherboards for 9900K you can buy online.


CPU Core i9 – 9900K is the I9 series, 9th generation. The suffix K at the end indicates that this is a chip capable of overclocking while operating, without locking the core factor to overclock. Intel Core i9 is the new generation of chips from Intel. This is the CPU product line using the Skylake-X architecture platform.

You have an Intel Core i9 9900k and you are now wondering which motherboard to buy in order to have the best PC build with a limited budget. Choosing one trusted product amongst many big brands is usually the first choice you have to make. The problem is not all mainboards can work with the i9 9900k, some work but not well, some work for a short time. Nevertheless, buying the right motherboard is not really hard. Regardless of your usage pattern, we are here to help you find the best motherboard for i9 9900k.

Last updated on October 3, 2021 11:58 pm

Buying Guides

1. Size

One of the basic factors but also few people care when buying main, users usually only care about the name of the manufacturer and the model of the motherboard. In fact, there are specific standards for motherboards and case sizes to be able to create a suitable system. 

Most of the discrete parts adapt quite well to the parts of the Desktop, but there are a few product lines that are manufactured separately from A to Z (also known as All in one, synchronous computers) of the Companies such as HP, Acer, Dell… do not comply with the above rules. 

Therefore, users will find it difficult to replace each part of this synchronous computer. Currently, the most popular motherboard on the market is Intel’s Advanced Technology Extended (ATX) and other components that come with it. 

If you are looking for a good mainboard which works best with the Core i9 9900k and has the standard size that could fit to most CPU cases, then the Gigabyte Z390 Aorus Xtreme is highly recommended.

2. Additional features 

Given the large number of features that motherboard manufacturers sometimes feature on motherboards – especially high-end models – cannot discuss them all. But here are some things to keep in mind:

  • On/Off On-Board Switches: These switches can be useful during initial construction or if your system is being placed in an open case for benchmark/component testing. But for the casual user, the buttons on the board (which sometimes also include buttons to clear the CMOS or perform a basic overclock) are unnecessary.
  • Diagnostic LED: Small speaker plugs into motherboard header to provide diagnostic beep when something goes wrong dodo’s way. Instead, many mid-to-high-end boards now have a two- or three-digit display for the same purpose, giving you an alphanumeric code when something goes wrong. This can be a real help when building a PC or upgrading and you forgot to plug something in, something was out of place, or one of your components is faulty.
  • Wi-Fi card: If you don’t have Ethernet near your computer, you want this. And if you plan on maintaining your PC for years to come, consider a board with Wi-Fi 6.
  • Dual Ethernet ports: A single Gigabit Ethernet port has a lot of bandwidth for Internet traffic, so this is mainly useful if you plan to use the computer as a server and the board can consolidate the two connections into one. For those with heavy wired networking needs look for a board with 2.5Gb or 10Gb Ethernet.

The ASRock Z390 Taichi Ultimate is not only a motherboard that supports i9 9900k, but also has many great features mentioned above.

3. Aesthetics

If the only time you see parts inside your system is when it’s powered off when the side panel is off, then there’s no reason to choose RGB lights or flashy I / O covers and heatsinks. However, if your case has windows, you should get a mainboard you like to look at, with lights if you love to.

Just keep in mind that, especially if you’re a novice builder, a dark motherboard can make it harder to build or update your system, because of the labels on the motherboard. It will be harder to see. 

Also, if you’re building a system that you want to look as clean as possible (i.e. with less visible wires stuck around the motherboard), look for a motherboard with fans and headers. USB plugs are placed around the edges and the SATA and USB 3 header ports are facing to the side, rather than protruding vertically. This will make completing a clean build much easier.

With an elegant design, and cool color light, we believe the Gigabyte Z390 Aorus Pro will make your PC build in style.

4. Warranty

Like all other electronic products, current motherboards have pretty good warranty conditions and conditions. Therefore, when looking to buy you should consult and ask the providers of these services to get the best convenience. Do not ignore these seemingly simple conditions because it is really important to help you avoid unnecessary damage or error.

Another point is that it is better to test the Main at the place of purchase to promptly detect the damage. Because it is possible that during the import process, sometimes these motherboards are accidentally dropped or damaged during the production process without your knowledge.

For example, the ASUS ROG Maximus XI Gene and the ASRock Z390 Phantom Gaming ITX are two items from two big brands of ASUS and ASRock, which means you can trust in their warranty terms whenever a problem occurs to the mainboard.

The best motherboard for i9 9900k

1. Gigabyte Z390 Aorus Xtreme

Gigabyte Z390 Aorus Xtreme is the computer memory unit flagship motherboard series, and there’s little doubt that these motherboards provide the simplest power delivery to the elements connected to that. This motherboard remains costly however heaps cheaper than the higher than mentioned. It’s sixteen section Power style VRM, that is best for Intel i9 9900k, and you’ll be able to overclock any Intel thought processor with this motherboard. For memory, it’s four RAM DIMMs and supports most memory of 128GB at the clock speed of 4400Mhz overclocked.

Gigabyte Z390 Aorus Xtreme has 3 PCIe x16 slots with PCI Steel Armor and 3 PCIe x1 slots and supports multiple AMD and Nvidia graphics cards. This motherboard has one USB three.1 Gen2 Type-C port, four USB 3.1 Gen2 Type-A, and 4 USB three.1 Gen1 ports on the rear I/O panel. For storage, it’s six SATA6 ports and 3 M.2 slots for NVMe SSDs with heatsinks on them. It’s high-quality audio capacitors and a 10GBPS local area network port, that was missing within the motherboard mentioned above.

We square measure through with this motherboard’s specifications and currently jump into the don’t have of it. This motherboard conflicts with some HyperX memory modules, and you’ll be able to overclock them to high-frequency rates. This motherboard remains costly for the options it got, however the value doesn’t look a lot for Intel i9 9900K. we’ve got listed 2 or additional Aorus motherboards during this list, thus you’ll be able to conjointly cross-check them below during this list.

This one is additionally associated with the E-ATX motherboard, and you may like a full tower chassis for it. For its performance and worth, this motherboard is appropriate for Intel i9 9900k, however another low-cost choices square measure on the market on this list with an equivalent options set and from an equivalent line up too, thus have a glance there.


If you’re searching for some aboard options like Wi-Fi and RGB lights, GB Z390 AORUS ULTRA is the best option for you as a result of getting these options out of the box. This motherboard is not any completely different than the one mentioned higher than however some minor style and options distinction. This motherboard has 12+1 style Power VRM, which supplies clean power delivery to the elements on the motherboard. If you wish to put in extremely overclocked memory, this motherboard supports up to 4400Mhz and most memory up to 64GB.

This motherboard has 3 M.2 slots for Wi-Fi and memory modules and has six SATA6 slots for storage devices. It’s 3 PCIe x16 slots with GB Steel Armor and 3 PCIe x1 slots for enlargement cards and support 2-Way AMD and Nvidia graphics cards. GB motherboards square measure filled with nice property choices as this one has one USB three.1 Gen2 Type-C port, the USB 3.1 Gen2 Type-A, two USB 3.1 Gen1, and 4 USB pairs of.0 ports on the rear I/O panel.

There square measure some cons of this motherboard we’ve got detected in it whereas reviewing. First of all, this Motherboard is costlier than alternative Z390 motherboards, however its value isn’t that top compared to alternative motherboards. Their square measure motherboards from a similar lineup and have identical options and style however square measure comparatively cheaper than this one.

With a strong style, wonderful power style VRM, the rear I/O cowl, inbuilt Wi-Fi, and alternative options, this motherboard additionally fits best for i9 9900K. All you’ve got to do is get a full tower case for it, and you’ll take your processor to new limits with this motherboard.

3. ASRock Phantom Gaming 9

If you’re not trying to find one thing super high-priced, ASRock Phantom Gaming 9 motherboards are best for you owing to their options and value. If you’re trying to find one thing premium with top quality, building this motherboard is best for you. it’s a twelve section power style VRM, that is kind of sensible for the processor we’ve. 

For memory, it’s four RAM DIMMs and supports most memory up to 64GB at the clock speed of 4266Mhz. The options per value price of this motherboard are comparatively higher than the 10GBPS local area network version of it.

This motherboard is jam-choked with ample storage and property choices, as well as eight SATA6 slots and 3 M.2 slots with M.2 heatsink within second place. This motherboard has 3 PCIe x16 slots with PCI Steel Armor and supports quad AMD and Nvidia graphics cards. It’s one USB three.2 Gen2 Type-C port, 3 USB three, Gen2 ports, and 4 USB three. 1 Gen1 ports for property. There’s a 10GBPS local area network version of this motherboard, however this one comes with one.73Gb/s Wi-Fi, that is comparatively cheaper than the opposite model.

There are some terrible things concerning this motherboard, and that i would suggest you check them out before considering this for your build. Initially, this motherboard may be a bit high-priced owing to its options and build quality. The cooling system during this motherboard may well be far better, however that doesn’t build any drawback with Intel i9 9900k.

This motherboard is beneficial provided that you’ll be able to afford its premium value. The sole advantage over others is high build quality, however you’ll be able to explore ASUS and computer memory unit motherboards that are less expensive than this one.


ASUS ROG MAXIMUS XI FORMULA Z390 lineup square measure flagship motherboards from ASUS, and these motherboards square measure best in quality-wise and options. Asus has the most important market share within the motherboards trade, and also the reason behind this is often high-quality merchandise and also the best value to perform.

This motherboard comes with ASUS Digi+ VRM and includes a High section Power style, that swimmingly delivers current to the parts hooked up to the motherboard. you’ll install memory up to 64GB on this motherboard and may overclock memory to 4000Mhz+ simply.

An eight or 10 cores chip is best to combine up with this motherboard, and it got lots of new and improved options. you’ll install memory up to 64Gb and may overclock them to 4400Mhz simply on this motherboard. 

It’s 3 PCIe x16 slots and 3 PCIe x1 slots for GPUs and supports 2-Way SLI and 3-Way Crossfire. it’s many USB three.1 information one Type-A and Type-C ports and has USB a pair of.0 ports too. For storage, this motherboard has 2 M.2 slots for NVMe and 6 SATA6 slots.

This motherboard is filled with glorious options, however there square measure some stuff you have to be compelled to fathom. The primary factor you’ve got to understand is it’s price for its options, however that’s traditional in ASUS motherboards due to the high-quality parts and controller used. 

The second factor is that the information measure between M.2, PCIe x16, and SATA is shared, which causes some performance loss. The UEFI RGB semiconductor diode configuration suggests that you can’t amendment RGB lights from the UEFI software system.

Overall this motherboard is a wonderful piece of product, except for its options, it’s pricey. Although you’re an Associate in Nursing enthusiast and looking out for performance and aesthetics, this motherboard fits best. There we’ve another alternative from ASUS too, thus take a glance at them.


1. Is Intel Core i9 9900K good?

Intel Core i9 9900k is one in every of the foremost potent processors discharged by the corporate, and still, there’s no different mainframe that may beat its raw vice performance. This mainframe comes with eight cores and sixteen threads, that square measure enough to hit any latest title or application recently. It’s a core clock of three.9Ghz that is nice enough.

2. What is the best GPU for i9 9900K?

Best GPU for i9 9900k Product Title Product Description Sapphire Radeon Pulse RX 5600 interference Best Budget Graphics Card XFX RX 5700 interference Triple Dissipation Best least expensive 1440p Sapphire RX 6800 Nitro+ Best middle vary 1440p EVGA GTX 3070 XC3 Black gambling Best middle vary 1440p & 4K 3 a lot of rows

3. What is the best graphics card for i9 9th Gen?

The EVGA GeForce GTX 1650 Super SC Ultra is undeniably the best graphics card for Intel’s i9 9th gen desktop processor owing to its solid build quality and whopping 4GB GDDR6 GPU memory.

4. What is the best air cooler for i9 9900K?

The number one cooling solution for your i9-9900k is the air cooler of Noctua NH-D15. Noctua is one of the trust’s worthy names for years for the production of the CPU coolers. Noctua has provided one of the best CPU coolers in the form of NH-D15 for i9 9900k.

5. Does i9 9900k need liquid cooling?

There are numerous factors to contemplate before deciding if you’d need liquid cooling for i9 9900k. If your motherboard offers smart VRM phases and higher cooling mistreatment heat sinks, you’re smart with solely the mainframe Fan Cooler. However, if you’re trying to overclock the mainframe to its full potential, you’re happier mistreatment liquid cooling.

Final Thoughts

The ultimate choice for the best motherboard i9 9900k   is none other than Gigabyte Z390 Aorus Xtreme. If you need another motherboard i9 9900k that’s cheaper but still offers a great experience then ASUS ROG MAXIMUS XI FORMULA Z390 is the best choice for you. 

Below we will summarize all the models mentioned above so that you will have a better overview of the product that we introduce. From there choose motherboard that is right for you

And that concludes what we’ve got to say about the best motherboard i9 9900k. We hope that this article can help you navigate through the selecting process. Don’t forget to tell us which motherboard is your favorite!

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