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Item#: 9B-13-157-296

ASRock Z77 Pro4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard

Item #: 9B-13-157-296  |  Mfr. Part #: Z77 Pro4  |  UNSPSC: 43201513
  • Intel Z77
  • Core i7 / i5 / i3 (LGA1155)
  • DDR3 2800+(OC)/2400(OC)

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    Top Favorable Review

    Dont spend more than you have to on more expensive boards

    There is alot to talk about - this is where price meets performance o 8 SATA ports 4 SATA 3 and 4 SATA 2 ! o 8 USB 2 3.0 6 2.0 (remember your external hard drive really isnt going to be limited too much by 2.0 so dont sweat not having more than ... Read more
    — joshua b. 5/5/2012

    Top Critical Review

    Decent, but had problems

    However, I got bizarre periodic lag spikes for some reason, and I couldn't for the life of me figure out why since no one else on my network was getting them. Eventually I replaced the motherboard and I've not had the same issue since. It's ... Read more
    — Jean-Pierre B. 10/13/2013

    Quick Info


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

    • newegg XFast 555 Technology Exclusive ASRock XFast 555 technology including XFast RAM, XFast LAN and XFast USB technology optimizes your user experience with unprecedented fast response and low latency. XFast RAM will create a virtual disk from the system memory to boost the performance. For Photoshop, It can even perform 5X faster than before. ASRock XFast LAN is a smart productivity tool to help you manage your priorities of internet applications, simplify your digital life and accomplish more. XFast USB technology boosts up the USB transfer to a new level enabling more data to be transferred in less time.
    • newegg Virtu Universal MVP - Uncompromised Game Response Performance ASRock motherboard supports Lucid Virtu Universal MVP technology that improves your PC’s visuals, with faster response times, improved video processing and smoother media playback, all with low power consumption. Brilliantly designed for gaming, Virtu Universal MVP switchable graphics software assigns tasks dynamically to the best graphics resource regardless of physical cable connection and features two exciting techniques – HyperFormance and Virtual Vsync. HyperFormance combines integrated and discrete graphics for uncompromised performance and improving gaming frame rates by 30-70%. Virtual Vsync solves the ever lasting debate between quality and performance. Bring GPU performance from 60 FPS Vsync limit back to its maximum while keeping Vsync image quality and no tearing.
    • newegg Digi Power By adopting digital pulse-width modulation (PWM), the ASRock motherboard can provide CPU Vcore voltage more efficiently and smoothly. Compared to analog PWM, digital PWM can optimize the CPU power solution and provide a proper and stable Vcore for the processor.
    • newegg Intel Smart Connect Technology & Intel Rapid Start Technology (Both are only supported under Windows Intel Smart Connect Technology keeps content always up-to-date! It means that your email, favorite apps, and social networks are continually and automatically updated even when the system is asleep. Smart Connect will periodically wake up the PC while in a sleep state and check updates for things like email, Twitter, Facebook, etc. No more waiting for the latest world news or friends’ updates to be delivered—just enable this function and you’re up-to-date and ready to go. Intel Rapid Start Technology gets your device up and running faster from even the deepest sleep, saving time and battery life. It quickly returns where you left off with a PC that goes from deep-sleep to full awake in a flash. The ultra-responsive capability gives your device the power to quickly resume to Windows 7 OS within few seconds and ensures ultra-low power consumption when on standby. With Intel Rapid Start Technology, users can jump right back into everything they were doing!
    • newegg Next-Gen PCI-E 3.0 Support The ASRock motherboards support the Next-Gen PCI-E 3.0! PCI Express 3.0 can maximize the bandwidth for the next-gen PCI Express 3.0 VGA cards, providing ultimate graphics performance.
    • newegg ASRock OMG (Online Management Guard) Fast, Easy and Free – ASRock OMG technology allows you to establish an internet curfew or restrict internet access at specified times. Administrators are able to schedule the starting and ending hours of internet access granted to other users. Normally, ISPs (Internet Service Provider) will charge for internet curfew service. The service controls “all” the PCs connected at home through network remotely but all the PCs in that network will be restricted to access the internet at pre-setup times. However, ASRock OMG is a free tool for controlling internet access of each single PC. Parents can easily control internet access through BIOS setup to protect their kids from using Internet at inappropriate time, and meanwhile, enjoy their own internet space.


    Learn more about the ASRock Z77 Pro4

    Customer Reviews of the ASRock Z77 Pro4

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    4 out of 5 eggs Based on 144 Reviews

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    • (123)
    • (0)
    • (40)
    • (0)
    • Matthew W.
    • Verified Owner

    5 out of 5 eggs great board

    Pros: Just a great little board. Stable, fast. I love all the features it came with.

    Cons: None.

    Did you find this review helpful? Yes No

    • Christopher W.
    • Verified Owner

    2 out of 5 eggs Terrible Quality/Support

    Pros: -Cheap
    -Worked for a year

    Cons: -Didn't even 2 years

    Bottom Line: I bought and installed this mobo in August of 2011. It died last week, after giving me problems for the last few months before that.

    No big deal, you might say. The problem is, their RMA service takes forver, i'm on my second week of dealing with this, and thats with me paying for overnight shipping to their HQ. Now that they have my mobo, they wont even decide if they'll send me a replacement for another 5-7 business days. Thats alot of time i'll be without my desktop because of some shoddily made product.

    Manufacturer Responses:

    Dear Sean, Sorry to hear that the mainboard has malfunctioned under 2 years which’s due to nature of electronic product, it can happen. We always do our best to provide RMA service to customers. Please visit RMA policy at " " . If you have any technical issues or warranty questions please contact us at We will assist you shortly. Thank you ASRock SUPPORT Tech Support Email:

    Did you find this review helpful? Yes No

    • Walter K.
    • Verified Owner

    5 out of 5 eggs Great Value Board

    Pros: Easy to install, easy to power up. Has all the slots needed for those of us that find 1 video card adequate. Stable. No hick-ups on the install. Picked up my SSD and HDD no problem. Easiest install ever. I love Asrock boards, I have tried several brands that I do not think I am allowed to name and Asrock has always delivered the performance and stability. I cannot understand why people have given this board less than 5 stars.

    Cons: I have large hands so a little more width wouldn't hurt.

    Bottom Line: In all honesty I doubt that the Gold caps add that much to the board. I think that one is more for show.

    Did you find this review helpful? Yes No

    • Richard M.
    • Verified Owner

    5 out of 5 eggs Great Motherboard

    Pros: I've built a total of 6 gaming rigs over the years. This mobo is by far the best I've ever used. Bios is clean and simple.

    Cons: none

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    • JOHN H.
    • Verified Owner

    5 out of 5 eggs ASROCK Z77 PRO4


    Cons: NONE

    Did you find this review helpful? Yes No

    • ian c.
    • Verified Owner

    5 out of 5 eggs Hasnt broke yet

    Pros: Lets you hook your video card up.

    Cons: Doesnt make you a sandwhich.

    Bottom Line: The only thing i can say about it is that ive had zero issues with it and install was easy. Guess thats a good thing.

    Did you find this review helpful? Yes No

    • Colin C.
    • Verified Owner

    4 out of 5 eggs Giving ASRock a try!

    Pros: I really like the BIOS screen and how easy it was to update! Has everything I need for a solid gaming build, nothing fancy.

    Cons: Board is "flimsy" compared to other manufacturers. and it doesn't come with a speaker dongle to plug into the mobo.

    The manual was could have done more with pictures instead of graphs.

    Bottom Line: Giving ASRock a shot for this years PC build, so far I'm impressed with the simple look and the ease of everything.

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

    • Patrick C.
    • Verified Owner

    5 out of 5 eggs Very good, exactly what I need

    Pros: This is exactly what I paid for. It is smaller than my old one, easier to figure out/wire and is all around great for gaming (and I mean hardcore gaming)

    Cons: Only downside would be that you can't put 2 graphics cards on PCI express 3.0 as there is only 1 slot

    Did you find this review helpful? Yes No

    • Alexander M.
    • Verified Owner

    3 out of 5 eggs Great Functions, Horrible Quality

    Pros: Had every single feature that I wanted in a motherboard.

    Cons: The quality of the motherboard feels really cheap. The SATA ports allow the cords to wiggle a lot while in the ports. The board itself is really flexible instead of stiffer boards. a month ago my computer would start shutting of randomly, sometimes when I would bump the case it would shut off too. I checked all the wires/connections and nothing would cause it to shut off that I could reproduce. Today it actually shut off and would post until I removed the CMOS Battery and then it would recognize two of my four RAM cards. I check the RAM by swapping cards and it turns out that the ports A1& B1 won't work now. . . . I had many different types of motherboards, but none of them gave out in a year and a half.

    Manufacturer Responses:

    Dear ASRock Customer We sincerely apologize for any inconvenience this may have caused you. Please check the grounding issues between chassis and mainboard including ATX power connector is firmly plugged on connector. For the memory slots issue, please clear the CMOS. Reinstall CPU and cooler to assure fully contact with the mainboard's contact pins. If you have any technical issues or warranty questions please contact us at We can assist you shortly. Thank you ASRock SUPPORT Tech Support Email:

    Did you find this review helpful? Yes No

    • David W.

    4 out of 5 eggs Pretty good

    Pros: -easy to navigate UEFI BIOS
    -lots of SATA slots
    -solid board
    -decent overclocking board but 4+2 phase limits how far you can go.

    Cons: Limited overclocking, 4.4-4.6GHz is about as far as you can expect before you start cooking the 4+2 VRM.

    Pick another board if you're looking for Nvidia SLI. However even crossfiring isn't a great idea since the second slot only runs at x4 which will choke modern cards.

    Bottom Line: The only board that allows me to overclock a locked i5 3550 to 4GHz (most motherboards won't let you go past 37x with the CPU), I do plan on replacing it with an i7 3770K soon though and I should be able to get it to 4.6GHz.

    Plays all my games just fine using an AMD R9 280X card and 8GB G.Skill DDR3 1600 ram.

    Did you find this review helpful? Yes No

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    Item#: 9B-13-157-296