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Item#: N82E16813130645

MSI Z77A-G45 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS

  • Intel Z77
  • Core i7 / i5 / i3 (LGA1155)
  • DDR3 2667(OC)/ 2400(OC)
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MSI Z77A-G45 - LGA 1155 - Intel Z77 - HDMI - SATA 6Gbps - USB 3.0 - ATX Intel Motherboard with UEFI BIOS



World's First PCI Express Gen 3 motherboard Brand

With ultra-high 32Gbps transfer bandwidth, PCI Express Gen 3 provides double the transfer rate over the previous generation, and thus delivers amazing capabilities for true next-generation extreme gaming.


  • Double bandwidth
  • Increased efficiency and compatibility
  • Extreme performance for current and next-gen PCI Express cards



Military III

MSI motherboards maintain the commitment to product stability and reliability by introducing Military Class III components including Hi-c CAP, SFC and Solid CAP which have passed MIL-STD-810G certification, making MSI's Military Class III components synonymous with premium quality and ultimate stability.



Gaming Optimized

Increasing the thickness of the gold-plated layer in the two-in-one PS2 and optimized USB ports to 30um to meet the demand of professional gamers. Besides enhancing mouse sensitivity in games, these improved interfaces deliver a longer lifespan and better stability of connectors and total solution for e-sports mouse control in UEFI BIOS.


THX TruStudio PRO

THX is a trademark of a high-end audio/visual reproduction standard for movies, home theaters, computer speakers and other audio devices. THX Certified Audio products are designed to let users experience movies and videos as live show. The true sound effect can make high definition video more powerful.


  • A high-fidelity sound reproduction standard
  • Accurately reproduces the fullest audio experience of movies, music and game soundtracks



USB 3.0

Compared to the 480Mbps provided by traditional USB 2.0, the all-new USB 3.0's 5GBps offers 10 times the transfer bandwidth, so transferring a Blu-ray movie takes less than one minute. MSI also has implemented a front panel USB 3.0 port, making the use of an external USB 3.0 device even more convenient.


  • 10X Faster Than USB 2.0
  • Up to 5GBps Data Transfer Bandwidth
  • World's first to provide Front Panel USB 3.0 Port
  • Boost Transfer Rate Between Your PC and External Storage Devices



Winki 3

Winki 3 is a free Linux-based OS which is based on the Linux core. With an ultra-fast booting speed and a multi-language interface, the built-in Winki 3 provides an easy-to-use internet environment that includes the most popular functions such as internet surfing, web mail, instant messaging, picture browsing, and more. It's the most practical way to be online in the shortest time.


  • User friendly and totally free applications
  • Power on to run applications in 25 seconds
  • Multi-language interface support


Military Class III

MSI motherboards maintains the commitment to product stability and reliability by introducing Military Class III components including SFC and Solid CAP which have passed MIL-STD-810G certification, making MSI's Military Class III components synonymous with premium quality and ultimate stability.



OC Genie II

OC Genie II provides an instant performance boost, optimizing CPU, memory, integrated graphics, and storage device performance with the function enabled.


  • Overclock in one second
  • At least 36% boost in 3D gaming performance
  • Simple and Easy – No need for complex BIOS setting and extra equipment
  • *Features may vary according to your platform and model.




SATA 6GBps provides double the bandwidth of traditional SATA 3GBps, and increases the data transfer rate between your motherboard and internal storage devices, such as 7200RPM HDDs, 10,000RPM HDDs and SSDs. It's also the current trend for upcoming high-speed internal storage devices to to break the existing bottleneck of a PC's performance.


  • 2X Faster Than SATA 3GBps
  • Up to 6GBps Data Transfer Bandwidth
  • Unleash True Performance of New HDDs/SSDs



HDMI v1.4

HDMI - High-Definition Multimedia Interface - is a new generation, fully digital video/audio interface which can transfer 1080p high-definition video and audio output in a single compact connector. Supporting HDCP copy protection such as Blu-ray Discs, HDMI provides you with the highest-quality home theater experience.


  • Next-Gen Multimedia Interface
  • Deliver Full HD Video & Audio output In Only One Cable
  • (HDMI 1.4 is only supported with 2nd Intel® Generation CoreTM Processors. Pentium and Celeron Processors support HDMI 1.3)



APS - Active Phase Switching

Active Phase Switching, or APS, technology is an intelligent design that helps to save energy on MSI's motherboards. The underlying idea is to switch off the power supply as soon as no electricity is needed, and when the system needs more resources again, APS will automatically adjust electricity supply accordingly. APS will automatically detect your processor's loading at any given time and save energy accordingly. This is only possible by means of a very advanced power controlling technology. Other than software-based solutions, APS technology stands out from MSI's own research. The specially developed IC chip can operate automatically depending on the demands of the power supply, which is to reduce the total power usage.



Compared to common motherboards which need extra BIOS chips, MSI's M-Flash has a double advantage - first, it doesn't need extra components, and second, all your BIOS data will be saved in the USB drive. The stored data does not only have backup and upgrade function, it can also be seen as a portable BIOS chip which is actually able to boot up your PC.


  • Backup & restore your BIOS to or from any USB flash disk
  • Avoid unnecessary repair due to accidental failures during the upgrading process
  • Extend the BIOS lifespan by reducing unnecessary rewrites



USB Safeguard

USB Safeguard can prevent motherboards and USB devices from being damaged by short-circuit and ESD - Electro-Static Discharge - with Anti-ESD chips built-into the motherboards. Additionally, the safeguard can protect against such dangers multiple times, and greatly improves product lifespan.


  • All MSI motherboards use USB Safeguard's anti-ESD chip for thorough protection against ESD damage
  • USB Safeguard is protected against a short circuit and/or ESD without the need for a fuse. It also supports stand-by power supply



AMD CrossFireX

AMD CrossFireX™ is the ultimate multi-GPU performance gaming platform. Enabling game-dominatig power, AMD CrossFireX technology enables two or more discrete graphics processors to work together to improve graphics performance. AMD CrossFireX technology allows you to expand your system's graphics capabilities. It allows you the ability to scale your system's graphics horsepower as you need it, supporting up to four AMD Radeon™ HD graphics cards, making it the most scalable gaming platform ever. With an AMD CrossFireX gaming technology, the traditional graphics limitation exists no more, allowing you to enjoy higher performance as well as visual experience.


Live Update 5

MSI Live Update 5 is a powerful and useful application for updating the latest BIOS and Drivers, saving you time and lowers the risk of updating. End-users can install and run the Live Update 5 software on their computers with the companion CD or downloading the app from the MSI website.


  • Automatically Detect the BIOS / Driver / VGA / Utility Update
  • Support Microsoft Windows 98SE / ME / 2000 / XP / Vista / 7, 32-Bit




SLI technology allows using multiple Nvidia graphics cards in a single computer system with a motherboard equipped with an nForce SLI MCP. Users need a motherboard with two PCI-Express 16x graphics slots and two matching GeForce graphics cards which are "SLI Ready." Most NVIDIA's PCI-Express graphics cards starting from the 6600GPU can enjoy the benefits of SLI.


Instant OC

  • Instant MB info monitor
  • Intelligently auto set clock/voltage of CPU and memory
  • Smart Mode: Four instant OC modes



3TB+ Infinity

3TB+ Infinity is not only breaking through the limit of traditional BIOS, but also enhancing the utilization of hard drive efficiency. In addition to supporting the latest 3TB hard drives, MSI 3TB+ Infinity technology can use the 3TB hard drive as boot disk when installing a 64-bit operating system. Compared to competitors, MSI 3TB+ Infinity is an industry-leading technology which substantially presents an advantage of development and application in the future.


  • All the latest 3TB hard drivers on the market can be supported
  • Make the 3TB hard drive as boot disk when installing a 64-bit operating system



Learn more about the MSI Z77A-G45



Supported CPU

CPU Socket Type
LGA 1155
CPU Type
Core i7 / i5 / i3 (LGA1155)


Intel Z77


Number of Memory Slots
Memory Standard
DDR3 2667*(OC)/ 2400*(OC)/ 2133*(OC)/ 1866*(OC)/1600/ 1333/ 1066
Maximum Memory Supported
Channel Supported
Dual Channel

Expansion Slots

PCI Express 3.0 x16
PCI Express 2.0 x16
1 x PCIe 2.0 x16 slot - PCI_E7 supports up to PCIe 2.0 x4 speed
PCI Express x1

Storage Devices

SATA 3Gb/s
SATA 6Gb/s
2 x SATA 6Gb/s

Onboard Video

Onboard Video Chipset
Supported only by CPU with integrated graphic

Onboard Audio

Audio Chipset
Realtek ALC892
Audio Channels
8 Channels

Onboard LAN

LAN Chipset
Realtek 8111E
Max LAN Speed

Rear Panel Ports

1 x PS/2 keyboard/mouse port
Video Ports
D-Sub + DVI
1 x HDMI
USB 3.0
2 x USB 3.0
USB 1.1/2.0
4 x USB 2.0
1 x Optical, 1 x Coaxial
Audio Ports
6 Ports

Internal I/O Connectors

Onboard USB
2 x USB 3.0 + 6 x USB 2.0
Other Connectors
ATX 24-Pin power connector
8-pin ATX 12V power connector
CPU x 1 / System x 4 FAN connectors
1 x Clear CMOS jumper
1 x Serial port connector
1 x TPM Module connector
1 x Front Panel Audio connector
1 x Front Panel connector
1 x Chassis Intrusion connector
1 x Voice Genie connector (optional)
1 x MultiConnect Panel connector (optional)
1 x V-Check Points Set (optional)

Physical Spec

Form Factor
12.0" x 9.6"
Power Pin
24 Pin


Military Class III components: Top quality & stability

OC Genie II: Auto OC to boost performance in 1 sec

ClickBIOS II: Easy-to-use UEFI BIOS interface

Super Charger: fast charge iPad/iPhone/smartphone

THX TruStudio PRO: deliver the fullest audio experience

Support USB 3.0 & SATA 6Gb/s

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the MSI Z77A-G45

Do you own this product? Write a Review

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  • Max R.
  • 4/16/2014 3:16:23 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDead after less than 90 days

Pros: Looks nice and worked well for under 90 days.

Cons: Everything was working nicely until the mobo capaitor popped. I bought this on 2/24/14. Piece of junk died on 4/15/14. I kept EVERYTHING at stock so there was no overclocking or voltage changes. They brag about this crappo having solid capacitors and all but it shows that MSI is using false advertising.

Other Thoughts: this bad mobo/i7 2700k, 16GB DDR1333 Gskill Ripjawx, GTX 760 in SLI, intel320 SSD, Samsung 840 SSD, Corsair H80 CPU kit, Corsair 750W PSU, Antec 1200 v3.

I'm looking for another company at this point. I used to use MSI mobo's and GPU's. Not anymore/

Did you find this review helpful? Yes No

  • Lev P.
  • 3/15/2014 8:44:39 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsWas good while it worked

Pros: Easy BIOS. Stable. Nice layout.

Cons: About 4 months into light use, with never overcloking and being kept in a cool room, HDMI output started failing. Images are washed out and sound is dead. Tried everything. Narrowed it down to the boards HDMI port. Did not expect it to fail so quickly. So much for this board. Time to RMA. Painful.

Did you find this review helpful? Yes No

  • Nicholas P.
  • 3/12/2014 11:19:54 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsMSI How decent you've become

Pros: Customer service is... wait.. a phone call and 1 prompt away?! Amazing! Product works flawlessly.

Cons: None!

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

  • Scott T.
  • 1/28/2014 2:52:49 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week

4 out of 5 eggsgreat

Pros: Amazing sound considering its onboard. I love the one click overclock aswell. Boots with my 250gb samsung ssd in about 5 seconds after the splash screen. Overall good buy

Cons: unfortunatly the board was warped and was not straight out of the package. Not a big deal once installed and mounted on to your chassis. Still its not a pleasant sight of a curved board.

Did you find this review helpful? Yes No

  • Bryan D.
  • 1/25/2014 2:34:08 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Motherboard

Pros: Awesome in a nutshell. Popped in all my components and it booted right away. I had an Asus board before this but the PCIe slot was busted and their customer support team is garbage so I decided to not waste any more time after 3+ RMAs and just picked up this board when it was on sale. It has Two SATA 6 ports perfect for any SSDs as well as a neat LED which tells you how clean your power is. The PCIe slots are spaced out nicely so you can have extra HUBs or wifi adapters even if you're running a crossfire/SLI setup. It has sufficient 4pin fan headers which takes advantage of my h75 PWM fans and the DIMMs are spaced out enough so you can mount a Hyper 212.

Cons: N/A

Other Thoughts: Updating the bios can be a real hassle, I tried and could not do it and just left it with what it had.

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

  • Thien D.
  • 1/24/2014 3:52:11 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsSo far so good :)

Pros: Easy UI BIOS. High quality built. Can upgrade to 32Gb of memories =)

Cons: Nope.

Other Thoughts: Bought 2,5 month ago. I'm not using desk comp at home much (turn on 2 to 3 hours per day for gaming and music at night) so I'm not sure if it can survive 24/24 for a period :).

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

  • Joey R.
  • 1/23/2014 9:26:08 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsMobo review

Pros: What can I say?
-Very fast
-Click bios

Cons: when first setting up the mobo, It has it preset to put fans on max(100%) when turning on for the fiirst time. Took me an hour to figure out how to lower the fans in the bios.

Manuel was not very clear, There are apparently 2 places to put power connections and it claims you need to put ran in 2 n 4 slot which is incorrect, In fact needs to be in 1-3.

Other Thoughts: This is a very well build mobo, I have had a great experience with this. This is my first build.

Did you find this review helpful? Yes No

  • Joshua M.
  • 1/13/2014 9:56:43 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: quick and easy overclock for the average gamer, 4.2 with a littler tinkering. Boot times are amazing!

Cons: Doesn't have eight cylinders.

Other Thoughts: I get payed to think.

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

  • Anonymous
  • 1/13/2014 7:07:37 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsImpressed

Pros: Over the years I have used many different boards and I always like using MSI. I have yet to have an issue with one of their MB and the GD45 is no exception. I was able to OC to 4.6 using the H100I and it is ROCK solid. Im totally impressed with this board. OC Genie got me to 4.2 with no fuss but I wanted more.

Cons: I'd love to see them ship with a little more goodies. Like additional SATA cables as well as SLI and Crossfire Bridges. But no complaints about the board at all.

Other Thoughts: Running with DDR3 2400 and this machine simply SCREAMS. I am very impressed at how this board performed.

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

  • Nicholas E.
  • 12/31/2013 11:52:38 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsmotherboard DOA

Pros: looks pretty

Cons: works 90% of the time. Other 10% is always crashing. Had to test all other components individually to verify motherboard was broken. Kinda wish it just didn't work at all, actually. Already set up for RMA, but msi make you pay return shipping, so I'm out a few more dollars over this motherboard.

Manufacturer Response:

Dear Valued Customer,

We apologize for the issues that you are having with this product.

If you have any questions, please kindly get in touch with our tech support team directly at 626.271.1004 for assistance during regular business hours from M to F, 6am to 6pm Pacific Time, or you can email us at
When contacting us, please kindly include your product info, thank you.

Best Regards,
MSI Review Team |

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

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Item#: N82E16813130645
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