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Item#: N82E16813128533

GIGABYTE G1.ASSASSIN2 LGA 2011 Intel X79 SATA 6Gb/s USB 3.0 Extended ATX Intel Motherboard

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  • Intel X79
  • Core i7 (LGA2011)
  • DDR3 2400/2133

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews



The G1.Assassin 2 motherboard is designed with one purpose; to equip you with the most potent technology available today including the very latest Intel X79 enthusiast processor platform, ruthless multiple discrete graphics card support and dedicated onboard audio and network processing that will take your 3D gaming experience to entirely new heights.

The G1.Assassin 2 is the newest member of the GIGABYTE G1-Killer series of gaming motherboards which have been designed from the ground up to provide the edge in a close 3D gaming contest. Precision is the watch word in all areas of the motherboard’s design, with as much attention to detail paid to the motherboards aesthetic qualities as to its technical prowess.

  • newegg Super Sight - 3-way CrossFireX, 3-way SLI and PCI Express Gen.3 Support The GIGABYTE G1.Assassin 2 is equipped to help extreme gamers see the enemy from distance, regardless of how bloody the battlefield, offering the utmost graphics flexibility and upgradeability with 3-way AMD CrossFireX and NVIDIA SLI multiple GPU support. The GIGABYTE G1.Assassin 2 motherboard delivers maximum FPS (frames per second), allowing gamers to see more clearly, aim faster, and move more quickly. The GIGABYTE G1.Assassin 2 is also fully configured to provide gamers with the latest Gen.3 PCI Express technology, delivering maximum data bandwidth for forthcoming discrete graphics cards. (PCIe Gen. 3 is dependent on CPU and expansion card compatibility.)
  • newegg Super Shield - Locked and Loaded Heatpipe and 5 Smart Fan Connectors The GIGABYTE G1.Assassin 2 features a redesigned distinctive signature heatpipe that was designed to be as deadly to heat as it looks. By effectively spreading the heat from the critical areas of the motherboard such as the CPU VRM zone and quickly dissipating it, the G1.Assassin 2 remains cool, even when the battle heats up. To further help eliminate heat in the field of war, five Smart Fan pin headers which allow for precise cooling fan control, have been strategically placed around the board. Each fan can take advantage of its own thermal sensor and can also be controlled by via GIGABYTE's EasyTune 6 utility as well as within the UEFI BIOS.
  • newegg Super Hearing - Onboard Creative Sound Blaster X-Fi Digital Audio Processor (20K2) GIGABYTE has rigged the G1.Assassin 2 motherboard with Creative's top-of-the-line Sound Blaster Digital Audio Processor (20K2) onboard with X-Fi Xtreme Fidelity and EAX Advanced HD 5.0 technologies, allowing you to experience sound in your gaming world exactly as you would in real life. Built-in front audio headphone amplifier is able to drive 150O loads to deliver a fuller range of dynamic crisp sound when using high quality professional headphones. Other Super Hearing features include Nichicon high-end MUSE ES series and MW series Bi-Polarized audio capacitors at each channel layout for highest quality sound resolution and sound expansion and EMI and Power Interference Shielding for a distortion-free audio listening experience. All these innovations deliver realistic sound effects for professional gamers.
  • newegg Super Speed - Onboard Bigfoot Networks Killer E2100 GIGABYTE seriously address online gaming network lag issues by implementing the Bigfoot Networks Killer E2100 Game Networking Platform directly onboard the G1.Assassin 2 motherboard. Utilizing a unique combination of dedicated Network Processing Unit (NPU) with 1Gb of dedicated DDR2 memory and exclusive Killer Network Manager software, the Bigfoot Networks Killer E2100 is designed to provide the best online experience possible for online gamers. Bigfoot Advanced Stream Detect is at the heart of Killer Networking Platform, intelligently prioritizing important streams, such as games, HD video, video chat and high-quality streaming audio. With Visual Bandwidth Control, users have the power to adjust bandwidth for ANY network stream. Download files, play online games or even watch a video all at the same time – it's all possible now with the Killer E2100 Game Networking Platform.
  • newegg GIGABYTE 3D Power GIGABYTE X79 series motherboards are the first to take advantage of the exclusive GIGABYTE 3D Power, an all-new hardware and software-based Digital Power Engine for both the PWM and Memory that delivers unprecedented power delivery control. Users can now enjoy a fully interactive 3D utility that facilitates adjustment of the 3 dimensions that control the power delivery to your CPU and Memory: Voltage, Phase and Frequency. These parameters are crucial to how the digital PWM supplies power to critical areas of the motherboard and can help users quickly obtain the highest, most stable overclock.
  • newegg GIGABYTE 3D BIOS The revolutionary GIGABYTE 3D BIOS application is based on the new GIGABYTE UEFI DualBIOS technology and is available to consumers in two new exclusive modes of interaction never before seen in a BIOS environment. GIGABYTE's exclusive 3D mode offers a fully interactive and illustrative GUI that allows users to easily and intuitively make key adjustments to the UEFI BIOS settings for optimum performance. And the advanced mode provides a more comprehensive UEFI BIOS environment that is designed specifically for overclockers and power users who want maximum control over their PC's hardware. GIGABTYE's signature M.I.T. tuning technology can be found alongside fully configurable parameters for GIGABTE's all new digital 3D Power engine.

Learn more about the GIGABYTE G1.ASSASSIN2

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details

Customer Reviews of the GIGABYTE G1.ASSASSIN2

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4 out of 5 eggsNot what I expected

Pros: Tons of features
Nice looking
Lol didn't catch fire like it could on old ones

Cons: Where to start, read other people's posts, same problems.
I really wish I could love this motherboard like I wanted to but it is so unstable. Even when updating every it is still not where it should be compared to other motherboards.

Can only get my 3930k to 4.3ghz when I know with my watercooling loop it should reach like 4.8 or even 5ghz
But was just let down with this motherboard.
In the future I will prob pay a lil more and get a different motherboard brand next system upgrade.

Did you find this review helpful? Yes No

  • Alena G.
  • 10/20/2013 2:36:08 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsG1

Pros: Fancy

Cons: Has a reboot loop issue since day 1. Machine starts and shuts off and will continue to do so until unplugged and restarted.

0 out of 1 people found this review helpful. Did you? Yes No

  • Linda W.
  • 8/5/2013 12:03:51 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsVery Unstable!

Pros: This motherboard came with every option I was looking for and was a decent price for what is included.

Cons: I have always bought Gigabyte motherboards and after owning this one I have been unsure about supporting Gigabyte products in the future. This board is the most unstable motherboard I have ever had and after upgrading the bios it is still very difficult to keep stable. It runs fine with one GPU in the top PCI slot but once you add 2 or even 3 cards for 2-way or 3-way sli this board becomes a big headache. Currently I am running 2-way sli because the board won't even boot if I have 3 cards plugged in. I'm currently using 2 Asus GTX 670 4GB in 2-way sli which are liquid cooled. Sometimes when I need to reset my computer for updates the bios locks up and won't boot up. The USB ports all shut off and you can't even enter the BIOS and the only way to get the computer to boot is to remove all the video cards and plug only one of them into the top PCI slot and it boots fine. I have switched around all 3 of my GPU's and tried all the PCI slots one at a time over a 6 month period to try to see if I had a bad PCI slot or GPU. I tested them each for weeks in each PCI slot and they all work perfectly fine by themselves. The problem only occurs when you try to do sli. This becomes a major pain to do when you are running all your cards on water!

There is also a major problem with the overclocking on this motherboard. I am not a noob by any means when it comes to overclocking because when I first got this board I was able to get it stable at 4.8GHz no problem but the board was very unstable when I set up sli. Now after flashing the bios to F12l its somewhat stable in 2-way sli (still 3-way doesn't work). It doesn't matter how I set the settings on my motherboard because no matter what I set it at I can't get my i7 3930k to overclock more than 3.2GHz.. I tried to flash it back to F11 and still the motherboard won't overclock anymore even when using the Easy Tuner Utility provided by Gigabyte. When entering the bios it says my core clock is at 4.6GHz but when I boot up into Windows 7 and check the clock in CPUZ, Easy Tune 6 and Windows 7 Performance information it only shows up as 3.2GHz with a boost clock of 4.0GHz which is frustrating.

Also the lack of updates for the drivers and the bios in over a year make me very stressed out from purchasing this board and having virtually no support from the manufacture. I highly recommend that everyone stays away from it.

Manufacturer Response:

Thank you for your comments. Honest and constructive opinions are always welcome. We apologize for your difficulty with your GIGABYTE product.

The first step is verify that your power supply is enough to support multi-graphics cards. Next for 2-way SLI, we recommend using PCIe slots 1, and 3 for the maximium performance. These are labled PCIEx16_1, and PCIE16_2.

As an experienced overclocker, you should know that overclocking results will vary with different components. Obtaining 4.8GHz overclock on this model may have been an anomally as this model was designed and marketed as a gaming motherboard model.

If you require further assistance, please contact us at with the case number 2013012901. Include your complete system configuration.


1 out of 1 people found this review helpful. Did you? Yes No

  • Gerhard B.
  • 4/25/2013 6:59:24 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsGreat idea for a fully integrated X79 Solution

Pros: Supports LGA 2011 CPUs, intergrated Creative Labs X-FI sound, tons of Intel SATA II and 2 - SATA III connections, 4 Marvel based SATA III connections, Fresco USB 3.0, UFI and EFI BIOS options, and more. Overclocking features are fantasic, as are the multiple BIOSes and the ability to easily selected between them.

Cons: The biggest gripe with this motherboard is that it Gigabyte has not been updating the drivers or the Firmware. The Intel Storage firmware (OROMs) are a full revision behind with the iRST (11.5) and server revisions out of date with the RST Enterprise (3.2). Additionally, the drivers for the X-Fi sound a about 2 years out of date, but check with Creative for updates. Of course, Creative lists the embedded sound controller as "undetected." Generally, Gigabyte has done a poor job supporting this board.

Other Thoughts: I really want to love this board. It has everything you could want in a decent workstation. However, stability is not there, and this is likely becuase of storage firmware related issues. Running tests, I've updated the firmware to include the Intel 12.6 Storage OROM, and my machine has run stabilly ever since. It took me a YEAR to get this motherboard to run stable in a RAID 0 configuration, which it is designed to do. I've litterally had to restore the system from backups no less than 10 times. Not what you'd expect from Gigabyte. [Yes, many posts have been made about this in their support forums.]

2 out of 2 people found this review helpful. Did you? Yes No

  • Jack P.
  • 3/2/2013 5:58:36 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggs

Pros: Several CPU options including 8 core Xeon processors besides i7's

Cons: On board Creative X-Fi chip CANNOT be disabled in BIOS (Using F11 BIOS) if you want to upgrade sound chip. Just bought a Creative ZXR. Only thing you can do is disable it in Windows, which is cheesy.

Other Thoughts: Every motherboard I've bought had the option of disabling on-board audio. So this was a definite "Wish I would have known before purchase"

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  • Eric L.
  • 12/10/2012 5:13:55 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsEnthusiast board, for an Enthusiast

Pros: So I bought this board a couple weeks ago and I finally got it all squared away. I was going to go with the top of line CPU at the time (i7-3960X) but then I decided to wait for the newest Core Processor (i7-3970X). My friend had the first gen 1366 Socket processor and it’s lasted him quite a while so I’m sure this computer will last me just as long. I chose to go with the gigabyte motherboard because it was actually a very good deal. The price is lower than most but the quality is on par if not better.

Not only is the price within my budget but the features and accessories was just icing on the cake. It has unique heat spreaders that really catches your attention especially for cases with a clear side panel, mine. It also has the Instant OC and backup bios switch made on the I/O in the back making it easy for me since I like to tinker with my toys. This way I don’t have to constantly go into the system crack the case and flip or clear a switch.

I’ve recently been running Black Ops 2 and man, what a big difference from my Core Duo. I’m glad I went all out on this one now I just gotta save up for 2 more cards to 3 Way SLI.

Cons: The board is huge but I’m glad it is because it means I paid for more since it is feature packed!

Other Thoughts: Hope this computer lasts me at least 7 ~ 8 years since nowadays computers are so durable.

3 out of 4 people found this review helpful. Did you? Yes No

  • Jean L.
  • 12/1/2012 7:09:40 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsVery disappointed

Pros: Everything this board offers "seems" nice

Cons: I bought this board in the beginning of October. It is now Dec 1st. After trial and error testing all other parts and sending them back to newegg, I finally narrowed it down to the motherboard. This brought me into November. I sent the board to Gigabyte for RMA and they never told me what was wrong with it or what they fixed, just simply sent it back a round a week ago. I tried calling customer service and the guy on the phone from Gigabyte told me it was just being repaired and that was all he knew. So here I am December first and I still do not have a new computer built.

I have even tried running the board with nothing installed, no processor ram or video card, just power to the board, the PSU turns on and immediately kicks off. The same results I get with all the components connected. Like I said I know its not the PSU as it had been RMA'd and I've even tried a different PSU. Same thing.

Other Thoughts: I'm running the intel i7-3960x extreme a evga 690 and 32gb of ram off a 1300w PSU.
It's sad because I've ALWAYS used Gigabyte boards in my builds or builds for other people. I've been recommending Gigabyte boards since I first used them in my builds in 2002. Now I've already RMA'd the board once. I'm guessing I will just have to look for a new Motherboard :(

Manufacturer Response:

Dear Customer,

Thank you for your comments. Honest and constructive opinions are always welcome. We apologize for your difficulty with your Gigabyte product.

If you require further assistance, please contact us at with the case number 2012120401 in the subject line. We will provide personalized service and analysis to help solve your issue as soon as possible.

Please contact our Live Technical Support at 626-854-9338, option 3 if the matter is urgent.


1 out of 3 people found this review helpful. Did you? Yes No

  • Matthew M.
  • 11/29/2012 3:45:03 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDO NOT BUY

Pros: - ran "unstable" for 3-4 months (LAN was completely broken)

Cons: - used a BIOS update to stabilize the LAN, afterwards the LAN actually became stable but the BIOS was wrecked and the board itself was very unstable, frequent BSODs, shutting down, power issues, not to mention the fact that the CMOS reset (inside the case) would not work 100% of the time, the dual BIOS (and reset switch) on the back was completely useless, never worked at all
- ended up donating the board to a non-profit business that builds gaming pcs to sell and then uses the profits to provide military veterans with working computers... the person i donated to informed me he had found a fix for the issue i was having (on an AMD forum-type website, no less) after trying the fix, it unfortunately still had a lot of issues with the BIOS and power

Other Thoughts: This board is a "purchase at your own risk" type, where there are a lot of known issues (perhaps just with a certain batch, but can you take their word for it?)...

Bottom line is, until the price drops dramatically (like at least $100), I wouldn't recommend chancing this... there are a lot more cost-effective alternatives out there...
Note that I myself haven't had a lot of bad luck with the few products I've used from Gigabyte, but this board has stay away written all over it

Manufacturer Response:

Dear Customer,

Thank you for your comments. We apologize for your difficulty with your GIGABYTE product. Please contact us at with the case number 90498 in the subject line. We will provide personalized service and analysis to help solve your issue ASAP. If the matter is urgent, please send us your contact number, and we will contact you.


1 out of 1 people found this review helpful. Did you? Yes No

  • justin T.
  • 11/19/2012 10:42:42 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGood Board

Pros: It works great and fast. Was exactly what I wanted. There were some early issues, but later bios's worked out the kinks.

Great enthusiast board.

One (sorta) pro - the cheesy heat sinks aren't visible under all the cards.

The bios is really easy to navigate, and its well thought out.

Cons: Cons - the order of the expansion slots is rather stupid, and gets really cramped or you loose a pcie slot with sli configs.

Other Thoughts: fantasic board.

I'm dropping an egg due to the bios not supporting my 16bit keyboard.

GigaByte - fix the bios!

Did you find this review helpful? Yes No

  • Gerhard B.
  • 11/4/2012 8:09:50 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsThe 1 year follow up

Pros: Loaded with features, and nice for someone looking for a single board solution with multiple PCIe 16x slots for crossfire, etc

Cons: Drivers: Gigabyte has done a horrible job ensuring that the latest drivers from vendors are available on their support site for the Assassin2. For example, the only properly usage driver for the on-board Creative X-Fi Titanium HD is at least a year old, and when installed it checks with Creative for updates. However, it reports that there is no recognizable or supported hardware installed (but that's not true). The intel drivers are massively outdated, especially the X79 RST Enterprise SATA drivers (which are at version 3.5). Moreover, the Intel SATA RSTe firmware is is OLD, at version 3.1 if you use a BETA bios, and 3.0.x otherwise. Additionally, the latest ATI 7000 series HD card drivers install a sound driver for HDMI compatibility that breaks the antiquated gigabytem X-Fi driver, telling you that the X-Fi driver is no longer compatible with up to date AMD drivers. Next, I've had consistent issues with RAID 0 and the on-board Intel based controller where the second SSD (an OCZ Vertex 4 512 set) in the array keeps dropping. When connected to a 3ware/LSI 9750 they work without issue (if not very slowly by comparison). Lastly, where the Mavell SATA controller is actually decent on comparable Asus boards, it's pretty slow on the Assassin2, once again to firmware most likely.

Other Thoughts: Ive owns tons of Gigabyte products over the years, and they were the reason I stopped using Asus boards / cards. However, Gigabyte has dropped the ball on the X79 LGA2011 Assassin2 product. Especially, 3rd party firmware and drivers for the Intel Enterprise, Marvell, and Creative Labs chipsets. I had a heat sink fall off of a Radeon 6900HD based card, and now this... I think my next system will be another vendor.

1 out of 1 people found this review helpful. Did you? Yes No

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