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ASRock X99 Extreme6 LGA 2011-v3 Intel X99 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

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Purchases from these Sellers are generally covered under our Newegg Marketplace Guarantee.
Marketplace Seller
  • Intel X99
  • Core i7 (LGA2011-v3)
  • DDR4 3000+(OC) / 2933+(OC) / 2800(OC) / 2400(OC) / 2133 / 1866 / 1600 / 1333 / 1066

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
X99X99X99X99X99

X99 Extreme6

Product Brief

  • ASRock Super Alloy
    • XXL Aluminum Alloy Heatsink
    • Premium 60A Power Choke
    • Premium Memory Alloy Choke
    • Ultra Dual-N MOSFET (UDM)
    • Nichicon 12K Platinum Caps
    • Sapphire Black PCB
  • Supports Intel® Core™i7 and Xeon® 18-Core Processors Family for the LGA 2011-3 Socket
  • Digi Power, 12 Power Phase design, Multiple Filter Cap (MFC)
  • Supports Quad Channel DDR4 3000+(OC) memory with max. capacity up to 128GB
    • Supports ECC*, RDIMM Memory
      (*ECC is supported with Intel Xeon processors.)
  • 3 PCIe 3.0 x16, 2 PCIe 2.0 x1, 1 mini-PCIe
  • Supports AMD 3-Way CrossFireXTM and NVIDIA® 3-Way SLITM
  • 7.1-Channel HD Audio with Content Protection (Realtek ALC1150 Audio Codec), Supports Purity SoundTM 2 & DTS Connect
  • Intel® Gigabit LAN + Qualcomm Atheros Gigabit LAN
  • 10 SATA3, 1 eSATA, 1 Ultra M.2 (PCIe Gen3 x4 & SATA3)
  • 10 USB 3.0 (4 Front, 6 Rear), 7 USB 2.0 (4 Front, 2 Back, 1 Vertical Type A)
  • 1 COM Port Header, 1 Thunderbolt AIC Connector
  • Supports ASRock Cloud, HDD Saver Technology, Full Spike Protection, APP Shop
X99

The extra large massive aluminum alloy heatsinks dramatically take away heat and cool down MOSFETs & chipsets.

X99

Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.

X99

Specially designed for memory power delivery, the new-gen alloy chokes feature a highly magnetic and heat resistant design, thus delivering more stable and reliable power to the motherboard.

X99
X99

Nichicon's supreme 12K platinum capacitors! The industry's longest lifespan – 12,000 hours*!
*Tested under industry standard 221°F (105°C) ambient temperature.

X99
X99

Combining two silicon dies into one MOSFET, Ultra Dual-N MOSFET provides larger die area and lower Rds(on), so the power supply for the CPU Vcore is more efficient.

X99
X99

Compared to traditional chokes, ASRock's new-gen premium power chokes effectively increase up to three times better saturation current, providing enhanced and improved Vcore voltage to the motherboard.

X99
The onboard M.2 socket is a new interface for connecting Next Generation Form Factor (NGFF) SSDs or other devices. ASRock is the best in the world to implement PCIe Gen3 x4 M.2 socket on motherboards. The ultimate Ultra M.2 interface pushes the speed up to 32GBps which is 6X faster compared to other M.2 Gen2 x1 solutions that are limited to 5GBps. In addition to support PCIe Gen3 x4 M.2 modules, the Ultra M.2 also supports SATA3 6GBps M.2 modules.
X99
This motherboard is capable of supporting DDR4 ECC and RDIMM (Registered DIMM) memory modules which deliver server-grade performance and durability for high-powered computing systems.
Designed to meet the maximum computing power system, this motherboard supports DDR4 8-DIMM quad-channel memory with maximum capacity up to 128GB.
Designed with a 12 Power Phase Design, this motherboard features 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.
By adopting digital Pulse-width modulation (PWM), the ASRock motherboard can provide CPU Vcore voltage more efficiently and smoothly.
Purity Sound™ 2 includes 7.1-Channel HD audio with Realtek ALC1150 audio codec, 115dB SNR DAC with Differential Amplifier, TI® NE5532 Premium Headset Amplifier, cap less Direct Drive technology, EMI shielding cover, PCB isolate shielding and DTS Connect. As Nichicon audio capacitors are what every audiophile has been longing for on a PC, ASRock applied these high quality capacitors for Purity Sound™ 2.
X99
Dual Gigabit LAN – This motherboard provides two Gigabit LAN ports, Intel® I218V & Qualcomm® Atheros® AR8171.
We provide various apps and support software for users to download. You can easily optimize your system and keep your motherboard up to date with ASRock APP Shop.
X99
There's a dedicated 4-pin HDD Saver Connector placed near the SATA ports. By connecting it to the HDDs, you can shut down or turn on the HDDs via software when needed. HDD Saver Technology secures more privacy, saves more energy, and extends HDD life.
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 (USB, LAN, MOSFETs) from being damaged by these unexpected voltage spikes.

Learn more about the ASRock X99 Extreme6

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
  • Return Policies
    • Return for refund within: Non-refundable
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Replacement Only Return Policy.
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Very Pretty Paperweight

Pros: none

Cons: I saw all the comments and thought surely after 8 months Newegg and Asrock would have managed their stock to ensure they were no-longer shipping boards that didn't support Broadwell. But, they are. In review of AsRock's response to other comments all I need is a simple bios update that Asrock is willing to provide. So, I have emailed tech support and attempted to call the phone number they provided. Unfortunately Asrock (as noted on their answer machine message) is still on vacation and will not return until 1/2/2017 (note today is 01/24/2017).

Other Thoughts: I expect this will be a great product and work really well once I get the bios Update. It is really a great thing Asrock gave us a new bios update to support a new processor instead of forcing people to buy a new motherboard. I wrote this review to warn others the issue still exist and in the hopes of getting someone’s attention at Asrock before I have to exchange the board for another manufacturer’s that really supports the processor.

Did you find this review helpful?
Manufacturer Response:
Dear Joseph,

Sorry for any inconvenience this may have caused you.
We do reply both email and phone promptly except on week-end and holidays.
We also provide LifeChat via Newegg (under products page).

If you have any technical or warranty inquiry, please contact us at 909-590-8308 or http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock SUPPORT
Tech Support Email: http://www.ASRock.com/Support/tsd.asp
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Old BIOS. Broadwell-E not supported

Pros: The built in "Dr Debug" was useful.

Cons: The BIOS on the board are 2 months old and do not support the Broadwell-E chips. You can't update the BIOS without having a supported CPU. Catch 22, unless you also have a Haswell-E laying around that you can pop in the board just to update the BIOS.
I contacted newegg, and they said I'd have to talk to ASRock or return the board (or use a Haswell-E.)
I reached out to ASRock, and have heard nothing.

Other Thoughts: Don't buy this motherboard if you plan on installing any of the new i7s (6800/6850/6900/6950)

5 out of 6 people found this review helpful. Did you?
Manufacturer Response:
Dear Stephen,

We sincerely apologize for any inconvenience this may have caused you.
Due to the mainboard has been released before Broadwell-E processor, the BIOS update is required to recognizing the new processor.
However, we will be more than happy to send the updated BIOS chip.
Please contact us at 909-590-8308 or http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock SUPPORT
Tech Support Email: http://www.ASRock.com/Support/tsd.asp
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Great product.

Pros: Great board with lots of features.
I like the Debug LED a lot.
Lots of ports.

Cons: No bluetooth.

0 out of 1 people found this review helpful. Did you?
1/ 5
Absolutly the worst board i have ever used Never buy anything from Asrock they are terriable. If there was a negative egg i would give it that

Pros: Looks Cool Lots of bells and wistles

Cons: I review tech products on youtube and this has been the worst board i have ever purchased. Out of the box it was not powering on then after messing with it for a lil while it started to power on. I install OS everything fine and dandy i install drivers after 5 mints of running it shutdown. I turn it back on It shuts down now it cant find the boot drive. After tinkering with it it boots again. I shut it down it restarts by it self and many other issues. I contacted asrock they gave me an rma they send me a replacement or maybe the same board because it has the exact issue now. After i turn the pc off it goes off then even if you move the mouse it turns back on. i have to resend it i am already out $45 which i could have spent on something else they should pay for return shipping but they don't

Other Thoughts: No never buy this board waste of time and money. Its not cheep by any means the amount i spent on return shipping i could have purchased a dual socket board.

2 out of 8 people found this review helpful. Did you?
Manufacturer Response:
Dear Mohammad,
Sorry for any inconvenience this may have caused you.
All replacement mainboards from ASRock have been fully tested by technician to assure working fine before shipped to avoid back forth shipping.
If replacement mainboard still having same issue, please check whether other components related.
Check the CPU is not overheating.

If you have any technical support inquiry, please contact us at http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://www.ASRock.com/Support/tsd.asp
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Reliable board, excellent value.

Pros: Worked right out of the box. Installing windows 8.1 via dvd was painless. The board is manufactured with quality components. Impressed with its stability.

One of the reasons I chose this board is because I knew Asrock had a stable bios at the time in comparison to some reports regarding the competition, and they were also among the first to develop a bios that deals with Skylake's latest bug issue (glad I didn't choose a skylake build)!

The x99 Extreme6 doesn;t have many frills compared to some other boards, but it works as advertised and has plenty going for it.

The UEFI makes setting up easy and hassle-free. Asrock's utilities make downloading their latest bios and drivers painless. Have had no need to flash bios yet, but would have no problem if I did at some point in the future.

Supports M.2 3x4 @ 32Gbs for possible future M.2 nvme drive addition. Has an "HDD Saver" feature, unique to the manufacturer, though they seem to have discontinued the feature as of their Z170 boards. Haven't made use of it yet, though if possible, may use for adding an internal backup drive to add to overall backup.

Cons: Unlike the revised x99 extreme6/3.1, has no internal SATAe port (even though I've no need of one at moment). Might have chosen the 3.1 had I paid attn to that detail.

Would have preferred dual intel lan, and lose the Atheros lan, though having one of each isn't really a con and both work fine.

Other Thoughts: This was my first build. I was a bit apprehensive, expecting the worst but hoping for the best. As it turns out, I had no reason for doubt, and have had no problems so far. Wish I'd gone with the Asrock x99 WS instead, or, perhaps better still, I wish I'd pounced on that Asus x99 e ws 3.1 back when Newegg had them in stock in the middle of December. May still consider getting one should they ever have it back in stock.

Though all in all I'm happy to have paid less than half for my extreme6, and am very happy with my new build and the motherboard at its heart. Indeed, I'd have no problem recommending the Asrock x99 extreme6 to others based on my experience so far.

3 out of 3 people found this review helpful. Did you?
Ownership: less than 1 day
Verified Owner
5/ 5
SWEET - My Brand of choice for over 8 years!

Pros: Loaded!

Cons: Doesn't install itself yet.

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Dead

Pros: None

Cons: The first one I received was dead and didn't post. Package looked like being opened before because one manual had a cut on its cover. I sent the dead mobo back for a replacement and the second one works OK. But it took me over 2 weeks to get the replacement because Neweggs return service is a super slow shipping and that really sucks! Waste customer's time!

2 out of 2 people found this review helpful. Did you?
Manufacturer Response:
Dear Valued ASRock Customer

We sincerely apologize for any inconvenience this may have caused you.
All mainboards are fully tested to assure the quality. Unfortunately, due to nature of electronic product, it can happen.
Glad to hear the replacement mainboard is working normally.
If you have any technical inquiry or warranty questions in the future, please contact us at http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock SUPPORT
Tech Support Email: http://www.ASRock.com/Support/tsd.asp
Ownership: 1 day to 1 week
Verified Owner
2/ 5
Nothing but issues

Pros: It has a debug LED display, which is quite helpful. Supports a large amount of RAM in a quad-channel configuration.

Cons: I had nothing but issues with it. The main thing was the heatsink bracket, must have been off in some way. I attached the standard heatsink to it, tightened until it was comfortable, only to have the computer turnoff after a period of time. Come to find out, the heatsink wasn't making any contact at all. I then tightened it to where it was, only to have issues where RAM slots would start to malfunction, I'd then loosen the heatsink and they're start working, but then I wasn't making good contact again. I tried this with two different heatsinks. I also found the boot manager to be a bit funky at times too. I just replaced it with a mid-end Gigabyte board and all was smooth sailing.

Other Thoughts: It's a cool board, but too much trouble.

3 out of 5 people found this review helpful. Did you?
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