Many thanks to...

We must thank the following companies for kindly providing hardware for our test bed:

Thank you to OCZ for providing us with 1250W Gold Power Supplies.
Thank you to G.Skill for providing us with the memory kits.
Thank you to ASUS for providing us with the AMD GPUs and some IO Testing kit.
Thank you to ECS for providing us with the NVIDIA GPUs.
Thank you to Corsair for providing us with the Corsair H80i CLC.
Thank you to Rosewill for providing us with the 500W Platinum Power Supply for mITX testing, BlackHawk Ultra, and 1600W Hercules PSU for extreme dual CPU + quad GPU testing, and RK-9100 keyboards.

Test Setup

Test Setup
Processor Intel Core i7-3770K Retail
4 Cores, 8 Threads, 3.5 GHz (3.9 GHz Turbo)
Motherboards ASRock Z77 Extreme4
ASRock Z77 Extreme6
ASRock Z77 Extreme9
ASRock Z77 OC Formula
ASRock Fatal1ty Z77 Professional
ASUS P8Z77-V Pro
ASUS P8Z77-V Deluxe
ASUS P8Z77-V Premium
ASUS ROG Maximus V Formula
ASUS ROG Maximus V Gene
Biostar TZ77XE4
ECS Z77H2-AX
EVGA Z77 FTW
Gigabyte Z77-HD4
Gigabyte GA-Z77X-UD3H
Gigabyte GA-Z77X-UD5H
Gigabyte GA-Z77MX-D3H
Gigabyte G1.Sniper 3
Gigabyte G1.Sniper M3
Gigabyte GA-Z77X-UP4 TH
Gigabyte GA-Z77X-UP7
MSI Z77 MPower
MSI Z77A-GD65
MSI Z77A-GD65 Gaming
Cooling Corsair H80i
Power Supply OCZ 1250W Gold ZX Series
Memory GSkill TridentX 4x4 GB DDR3-2400 10-12-12 Kit
GSkill TridentX 2x4 GB DDR3-2666 11-13-13 Kit
Memory Settings XMP (2400 10-12-12)
Video Cards ASUS HD7970 3GB
ECS GTX 580 1536MB
Video Drivers Catalyst 12.3
NVIDIA Drivers 296.10 WHQL
Hard Drive Micron RealSSD C300 256GB
Optical Drive LG GH22NS50
Case Open Test Bed - CoolerMaster Lab V1.0
Operating System Windows 7 64-bit
USB 2/3 Testing OCZ Vertex 3 240GB with SATA->USB Adaptor

Power Consumption

Power consumption was tested on the system as a whole with a wall meter connected to the OCZ 1250W power supply, while in a dual 7970 GPU configuration.  This power supply is Gold rated, and as I am in the UK on a 230-240 V supply, leads to ~75% efficiency > 50W, and 90%+ efficiency at 250W, which is suitable for both idle and multi-GPU loading.  This method of power reading allows us to compare the power management of the UEFI and the board to supply components with power under load, and includes typical PSU losses due to efficiency.  These are the real world values that consumers may expect from a typical system (minus the monitor) using this motherboard.

While this method for power measurement may not be ideal, and you feel these numbers are not representative due to the high wattage power supply being used (we use the same PSU to remain consistent over a series of reviews, and the fact that some boards on our test bed get tested with three or four high powered GPUs), the important point to take away is the relationship between the numbers.  These boards are all under the same conditions, and thus the differences between them should be easy to spot.

For a low cost motherboard with few features, we would expect it to have a lower power consumption than that of a mid-range Z77 motherboard.  The truth of the matter is that as a board is more expensive, especially at the high end, component efficiency is a factor in the overall board cost.  As a result, the Z77-HD4 does well at idle and CPU load, but breaks over 500 W in Metro2033.

POST Time

Different motherboards have different POST sequences before an operating system is initialized.  A lot of this is dependent on the board itself, and POST boot time is determined by the controllers on board (and the sequence of how those extras are organized).  As part of our testing, we are now going to look at the POST Boot Time - this is the time from pressing the ON button on the computer to when Windows starts loading. (We discount Windows loading as it is highly variable given Windows specific features.)  These results are subject to human error, so please allow +/- 1 second in these results.

POST (Power-On Self-Test) Time

With fewer controllers, a cheaper motherboard would be expected to POST quicker than a more indepth motherboard.  But it would seem that the cheaper motherboards also have less time spent optimising the POST sequence.  As a result, the default boot time with two GPUs is north of 18 seconds.  The fact that the second GPU had to be in an x4 slot via the PCH may also be a factor in this.

Gigabyte Z77-HD4 In The Box, Overclocking System Benchmarks
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  • lmcd - Sunday, May 19, 2013 - link

    I'm just going to tell you now that your assessment is completely off -- a good amount of people can tell the difference in regards to the audio. Plenty of people like the option to XF/SLI later in custom builds. And some of those performance differences were shocking. That was an audio demonstration, but could mouse polling face that, too?

    Anyway, don't get me started on the audio, but there is reason for better solutions than this board.
  • HardwareDufus - Monday, May 20, 2013 - link

    the "this board is probably aimed at the internet café market in China" is pretty shameful and below the belt Ian..

    I agree as well... Don't be so elitest! It's refreshing to see a decent $120 motherboard that sacrifices nothing that 95% of buyers require. Ian you are getting spoiled reviewing too many high end motherboards jammed with features that only 2% of the buyers require. Come down out of the stratosphere and join the rest of us.
  • kmmatney - Monday, May 20, 2013 - link

    I also think this comment was way off ""this board is probably aimed at the internet café market in China"

    If anything, the board is for this market:
    http://www.microcenter.com/site/brands/intel-proce...

    And its what I build for myself, friends, family, and all the computers I build for my company, and anyone else who wants a great gaming experience without breaking the bank.
  • Razorbak86 - Monday, May 20, 2013 - link

    "Shameful" and "below the belt"? o.O

    Do you always get your panties in a twist over such innocuous opinions?

    /seewhatididthere
  • kmmatney - Sunday, May 19, 2013 - link

    I have to admit I never use the on-board buttons on my motherboard, and find beep codes to be just as useful as an error code display. At the end of the day, you still need to swap out parts to troubleshoot an error, regardless of an error code display.
  • Flunk - Monday, May 20, 2013 - link

    I agree with you I can't see a need for onboard power and reset switches on any motherboard. If the computer is set up they're worthless and if you're working on it you have your screwdriver right there to short out the front panel header. There really is no need at all for onboard power buttons.
  • jabber - Monday, May 20, 2013 - link

    I have to agree. I don't need dragons or ninjas on the box.

    I don't need heatsinks fashioned in some faux novelty bullet or landmine design.

    I don't need LED lit BIOS reset buttons (I've used mine twice in 5 years, so no, not needed).

    I don't need LED error notifications. I've had them and never needed them.

    I don't need umpteen video out options, I have a GPU card.

    I don't need built in audio, I have a sound card.

    I don't need built in ethernet, I have a Intel CT nic.

    I don't need a PS2 socket.

    I don't need more then 4 SATA ports (three if I'm honest is all I ever need)

    I don't need extra USB/Serial/Firewire expansion on the board.

    I don't need glow in the dark sockets or custom motherboard colours.

    I don't need 8 fan controller sockets.

    What do I need? A good quality stripped down board that without all that unnecessary crud would probably cost $50. Unfortunately no one seems to think anyone wants such a board.

    If most here were honest it's all they really need/want also.
  • Razorbak86 - Monday, May 20, 2013 - link

    Good God, man, give it a rest. I hate it when someone starts ranting and then presumes to speak for the rest of us.
  • jabber - Monday, May 20, 2013 - link

    Sorry, I'll leave you to your motherboards and GPUs with dragons, neons and bullets on them.

    Was just stating that a lot of the features that motherboard manufacturers have loaded on 'as standard' are not really needed and only there to increase their slim profit margins.

    After 20+ years of PC building I'm kind of fed up paying for crud I don't need in order to purchase a 'quality' board.

    Why can't we have a good quality overclocking board without all the stuff we never use? Without all that stuff on there we could have much better signal paths, less noise and better power regs.
  • kmmatney - Monday, May 20, 2013 - link

    That's a bit extreme. Most of us need/use the built in Network and Sound, and at least a DVI output is useful, even if you have a separate card. And practically everyone can use a lot of USB ports and headers.

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