Supermicro C9X299-PG300 Desktop Motherboard - Intel X299 Chipset - Socket R4 LGA-2066 - Intel Optane Memory Ready - ATX
SKU: 30516494748

Supermicro C9X299-PG300 Desktop Motherboard - Intel X299 Chipset - Socket R4 LGA-2066 - Intel Optane Memory Ready - ATX

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Description

Supermicro C9X299-PG300 Desktop Motherboard - Intel X299 Chipset - Socket R4 LGA-2066 - Intel Optane Memory Ready - ATXSupermicro C9X299 PG300 Desktop Motherboard Intel X299 Chipset Socket R4 LGA 2066 The Supermicro C9X299 PG300 is engineered for serious performance enthusiasts and professionals who demand uncompromising power, scalability, and reliability. Built around the Intel X299 Express Chipset and the Socket R4 LGA 2066 platform, this ATX motherboard is designed to support Intel Core X Series processors for extraordinary compute capabilities, seamless

Supermicro C9X299-PG300 Desktop Motherboard - Intel X299 Chipset - Socket R4 LGA-2066

The Supermicro C9X299-PG300 is engineered for serious performance enthusiasts and professionals who demand uncompromising power, scalability, and reliability. Built around the Intel X299 Express Chipset and the Socket R4 LGA-2066 platform, this ATX motherboard is designed to support Intel Core X-Series processors for extraordinary compute capabilities, seamless overclocking, and advanced memory tuning. With Optane memory readiness and robust I/O options, it’s a compelling foundation for high-end workstations, content creation rigs, and extreme gaming systems that thrive under heavy workloads and extended operation. This board blends high-density voltage regulation, thermal management, and expansive storage and expansion capabilities to empower designers, developers, and power users who expect more from their desktop platform.

  • Power and performance for Core X-Series — Leveraging the Intel X299 Express Chipset and Socket R4 LGA-2066, the C9X299-PG300 is built to unleash the full potential of Core i9/i7/i5 X-Series processors. It supports CPU and memory overclocking to push every ounce of performance from enthusiast-grade CPUs, delivering faster rendering, smoother 4K workflows, and snappier multi-threaded tasks. This board is purpose-built for users who require peak throughput and the agility to tune systems for demanding applications.
  • Memory and storage versatility — Designed to handle high-bandwidth DDR4 memory with quad-channel architecture, this motherboard enables substantial memory capacity and improved data throughput. It also supports modern storage configurations, including M.2 NVMe drives and traditional SATA options, giving you the flexibility to configure blazing-fast boot drives and expansive data stores for large projects, databases, and media libraries.
  • Expansion and connectivity breadth — The C9X299-PG300 offers abundant PCIe expansion paths to host multiple GPUs, accelerators, and add-in cards. Whether you’re building a multi-GPU workstation for machine learning or a content-creation rig with advanced I/O needs, you’ll appreciate the platform’s scalable lanes and connectivity options, enabling a future-proof setup that grows with your workloads.
  • Intel Optane Memory readiness — This motherboard is Optane Memory Ready, enabling faster responsiveness by accelerating frequently accessed data and improving system boot times. When paired with Optane memory modules, you can expect quicker application launches, smoother multitasking, and more responsive overall system performance during intensive tasks like 3D rendering, video editing, and large-scale simulations.
  • Build quality, reliability, and cooling — The ATX form factor houses a robust power delivery design and comprehensive cooling paths to maintain stability under load. With reinforced components, meticulous layout, and efficient heat dissipation, the C9X299-PG300 is well-suited for extended gaming sessions, long renders, and continuous computation without throttling or thermal dips. It’s a workstation-class motherboard built to endure demanding environments.

Technical Details of Supermicro C9X299-PG300

  • Chipset: Intel X299 Express Chipset
  • CPU Socket: LGA-2066 (Socket R4)
  • Form Factor: ATX
  • Memory Support: DDR4 memory with multi-channel (quad-channel) configuration; supports high-speed memory modules and overclocking capabilities for enhanced throughput
  • Expansion Slots: Multiple PCIe 3.0 slots to accommodate GPUs and PCIe add-in cards; designed for flexible expansion and future-proofing
  • Storage Options: Supports M.2 NVMe SSDs and SATA drives for fast boot and data access alongside ample storage capacity
  • Networking and I/O: Onboard NIC options with ample USB connectivity to support peripherals, external storage, and fast data transfer
  • Optane Ready: Compatible with Intel Optane memory modules to accelerate system responsiveness and workload performance

how to install Supermicro C9X299-PG300

Installing the C9X299-PG300 is straightforward for builders familiar with assembling desktop workstations. Follow these general steps to set up the motherboard with a compatible CPU, memory, storage, and peripherals. Ensure you have a compatible power supply, case, and cooling solution before you begin.

  • Prepare the case and stand-offs: Install the case standoffs in the appropriate motherboard mounting points for the ATX form factor. Make sure the back I/O cutout aligns with the motherboard and there’s ample clearance for airflow around the VRMs and chipset heatsinks.
  • Install the CPU: Open the CPU socket lever, align the CPU with the socket keying, and gently seat the Core X-Series processor into LGA-2066. Secure the socket latch as directed by the motherboard’s documentation. Apply thermal interface material as needed and attach your cooling solution to ensure effective heat dissipation.
  • Seat memory modules: Install DDR4 memory modules into the recommended DIMM slots in the motherboard’s manual. Use the correct dual- or quad-channel configuration to maximize bandwidth and performance. Confirm each module is fully seated with a firm click.
  • Install storage devices: Mount M.2 NVMe drives into the M.2 slots if present, and connect any SATA drives or SSDs to the appropriate ports. If your case includes quick-access USB or NVMe drives, ensure you route cables cleanly to avoid airflow disruption.
  • Mount the motherboard and connect power: Gently place the motherboard into the case and secure it with screws. Connect the 24-pin main power, the 8-pin (or 4+4) CPU power, and any additional power lines required by the board’s VRMs. Attach the front-panel USB, audio, and case switches according to the manual.
  • Configure BIOS/UEFI: Power on the system and enter the BIOS/UEFI to configure boot order, memory XMP/overclocking profiles, and any intended PCIe lane allocations for GPUs or PCIe switches. Save changes and install your operating system and drivers.
  • Install operating system and drivers: Install your preferred OS, then load chipset, storage, and graphics drivers from the motherboard’s support page. Update the BIOS if a newer version is available to ensure compatibility and stability with the latest CPUs and memory modules.

Frequently asked questions

  • Q: What CPUs are supported on the C9X299-PG300? A: The motherboard is designed for Intel Core X-Series processors using the LGA-2066 socket, delivering robust multi-core performance suitable for high-end desktops and workstations. Overclocking is supported on compatible CPUs and memory kits, enabling additional performance headroom.
  • Q: Does this board support Intel Optane memory? A: Yes. The C9X299-PG300 is Optane Memory Ready, allowing you to pair Intel Optane memory modules to accelerate system responsiveness and data access for frequently used workloads.
  • Q: Is this motherboard suitable for gaming, content creation, and professional workloads? A: Absolutely. Its robust VRM design, memory tuning capabilities, and expansive PCIe expansion make it well-suited for gaming rigs, 3D rendering, video editing, CAD applications, and other demanding tasks that benefit from high memory bandwidth and CPU performance.
  • Q: Can I overclock memory and CPU on this board? A: Yes. The platform supports CPU and memory overclocking on compatible CPUs and memory modules. Users should follow the motherboard manual for safe power and thermal settings to avoid instability or damage.
  • Q: What kind of storage options does it offer? A: The motherboard supports modern NVMe M.2 drives for fast boot and application-load speeds, along with SATA storage options to meet larger capacity needs. This combination provides both speed and capacity for varied workflows.
  • Q: How do I ensure compatibility with components? A: Review the official compatibility lists and the motherboard manual for supported CPU generations, memory configurations, and expansion cards. When in doubt, choose high-quality, shop-verified components from reputable brands and verify BIOS compatibility before purchase or assembly.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30516494748

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Verified Purchase
Jesse
Charlottesville, US
★★★★★ 5
TireJECT cannot work miracles
Size: Compact Car, Mid-size Sedan, Size: Compact Car, Mid-size Sedan
TireJECT is a surprisingly thin fluid that supposedly contains fibers that must help stop up holes. Frankly I'm still confused as to how this stuff can plug a leak, but apparently it does. Tons of reviews say so. I say apparently because the product did not completely stop a slow leak in my tire, but that's OK. I knew it likely wouldn't. I'll have to replace the tire unfortunately. I had a garage install four nearly-new tires on my car. After installing, a heavy leak was discovered in one of them. They took the tire off again and found a small tear near the rim/bead of the sidewall. Since the tear would be flat against the rim, they suggested to let them try and repair it with tire patch adhesive and lots of bead sealer. They were confident, so I went for it. It seemed to work, but it went flat a few days later. TireJECT seemed like the perfect solution to the slow leak since I wouldn't have to disturb the repair. I bought the kind without the syringe and regretted it immediately upon trying to use it. First, the valve stem removal tool broke as it loosened it. I had to buy a new tool down the road. When I went to inject, I squeezed as hard as I could but it just wouldn't flow past the TPM. It also kept leaking out of the flex joint of the nozzle. I had a huge syringe on hand, so I sucked up the rest from the bag, ziptied the hose on both ends and got the rest of the product into the tire. HURRAY! The tire pressure had fallen considerably by the next morning. BOOOoo. I contacted TireJECT, and after several emails (and long waits in between). They determined their product was not suitable for my use case. They refunded what I paid without me even asking. I really appreciated that. That said, before injecting, the tire would go flat overnight. So, TireJECT does work to a good degree. I'm half tempted to overdose the tire with another package. Give TireJECT a try! Though, be sure your situation matches their criteria. If you have a TPM, opt for the package that comes with a syringe. You will need it. Also, throw the cast pot metal, tire stem tool out and get a decent machined one before you do the repair. Thank me later.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2025
D
Verified Purchase
D. T.
Bozeman, US
★★★★★ 5
Works once again!
Size: Compact Car, Mid-size Sedan
Third time using TireJect on a vehicle, and it's worked perfectly each time. First was the off-road formula for leaking motorcycle tire beads.... then this formula my light SUV with a slow leak until I could get the tire replaced. This was for a stubborn tire that had a leak SOMEWHERE, and usually would lose 10-15 psi overnight after a fill-up. Two days later, still fully inflated and no signs of trouble. This is great because this formulation is also okay for tire pressure sensors. Will continue to purchase this product for similar issues going forward. High quality, durability, and easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025
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Verified Purchase
Rodney Hahn
Louisville, US
★★★★★ 5
Works like a champ!
Size: Full-size Truck, SUV
It works great! I had one fairly slow leak and 2 very slow leaks. 3 Tires. 2 were on my 94 Ford Ranger. I put a little more than 1/2 the packet in my fastest leaking tire (on the Ranger) and about 1/4 of the packet in the 2nd tire of the same vehicle. Lastly, I put the final 1/4 in a very slow leaking tire on my 2000 Ford F-150. All tires have stopped leaking!! I am delighted with the effectiveness of this product!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
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Verified Purchase
Jim
Dallas, US
★★★★★ 4
Seems to have done a great job.
Size: Full-size Truck, SUV (2-pack)
One of our cars has suffered from rim leaks and was driving me nuts. Constantly being asked by my wife to top off the tires on her car. When I replaced a damaged rim I asked the tire shop to look for the source of the leaks. They said the "alloy" rims had started to corrode and did their best to get them to seal but warned me they would likely leak again. This spring when I removed her snow tires I found 3 of her 4 tires had gone completely flat in storage. The fourth was the new rim which was fine. I considered buying new rims that won't have this problem but wanted to wait until her times need to be replaced. The batteries in the TPMS sensors are getting very low so likely these will need to be replaced as well. I thought to try some sort of sealant. Most of the products I saw were not rated for automotive systems and offered warnings about risk to the TMPS sensors. This seemed to be the only product rated for my application and claimed it would not harm our car's sensors. So I gave it a shot. I ordered the SUV package that came with an injector and two 8-oz bottles. I put 4 oz in each tire per the instructions. Overall the process was easy except the valve core extractor broken on one of the tires. I had to pick up a replacement at a local auto parts store. Also, injecting the sealant creates a small amount of pressure in the tire that, if one doesn't release by drawing out the plunger, will burp a small amount of sealant onto the rims. Fairly easy to clean up with WARM water and easier to avoid after the first experience. Drove the car around at a variety of speeds for 10-15 minutes (had errands to run) and waited to see what happened. Great results. Weeks later and the tires still have the correct pressure. I am not sure how long this will last but hopefully for the remaining life of the tires at least. I took one star off for easy of use / easy to install because the valve core extractor is made of extremely cheap aluminum and I am sure others will have a poor experience with it. Be forewarned and consider buying one before you start jacking up your car and letting the air out of the tires only to find you break the tool on a sticky valve core and are unable to complete the job without a trip to the auto parts store. I'll update this review in about a year to report on the long-term outlook for this product.
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Reviewed in the United States on June 20, 2023
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Verified Purchase
Team Ohio
Omaha, US
★★★★★ 5
It Works!
Size: Full-size Truck, SUV
When I bought my vehicle it didn't come with a spare. I knew what I was in for. I was on my way to an important meeting and as fate would have, the tire pressure indicator reported a flat. I imagined the worst but experienced the best! The directions said to let all the air out of tire and remove the valve stem core, it seemed like I was making a bad situation worse. Then it said to attach the tube to the stem and squeeze the contents into the tire. I thought "this is never going to work" the fluid seemed too watery to seal anything, but I followed instructions, I reinstalled the valve core and reinflated the tire, and it worked! I expected it to leak immediately, it didn't. It lasted all day and most of the next day until I could get the tire to the shop. They removed a nail and patched the hole, overall I'm very satisfied, I bought a replacement right away, just in case!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026

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