Many thanks to...

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

Test Setup

Test Setup
Processor Intel Core i7-4770K ES
4 Cores, 8 Threads, 3.5 GHz (3.9 GHz Turbo)
Motherboard ASRock Z97 Extreme6
Cooling Corsair H80i
Thermalright TRUE Copper
Power Supply OCZ 1250W Gold ZX Series
Corsair AX1200i Platinum PSU
Memory G.Skill RipjawsZ 4x4 GB DDR3-1600 9-11-9 Kit
Memory Settings 1600 9-11-9-27 1T tRFC 240
Video Cards MSI GTX 770 Lightning 2GB (1150/1202 Boost)
ASUS HD7970 3GB (Reference)
Video Drivers Catalyst 13.12
NVIDIA Drivers 335.23
Hard Drive OCZ Vertex 3 256GB
Optical Drive LG GH22NS50
Case Open Test Bed
Operating System Windows 7 64-bit SP1
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 single MSI GTX 770 Lightning 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.

Power Consumption - Long Idle

Power Consumption - Idle

Power Consumption - OCCT

Long idle and idle power consumption are relatively normal for the Z97 Extreme6, although the load power consumption is 10-20W higher than the other motherboards listed here. We have another motherboard tested but not written up yet which also shows the same as the ASRock though, indicating there may be some power saving implemented on some motherboards but not others, or more fundamental efficiency differences due to components.

Windows 7 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 7 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 - Single MSI GTX 770

Like some of the other Z97 motherboards, the default POST time extends to almost 20 seconds. However when stripped of the extra controllers, the Z97 Extreme6 is a very impressive 6.9 seconds.

ASRock Z97 Extreme6 In The Box, Overclocking System Benchmarks


View All Comments

  • Ian Cutress - Sunday, May 25, 2014 - link

    For my stripped POST times, I try to disable as much as I can, except the ports I need to boot (SATA, USB 2.0). This is based on a request I had a couple of years back. As you can't adjust the M2_1 (the M.2 x4) in the BIOS, it would have remained enabled, although I did not have the drive installed at the time.

    It is worth noting that 20 seconds is on the pre-release launch BIOS. ASRock is historically known for its fast POST times, so there might be BIOSes at a later date that optimise the default post process by adjusting certain options at default. Because so much can change in a BIOS (even basic performance), our reviews are essentially a snapshot in time of the life cycle of the product.
  • Maiyr - Monday, May 26, 2014 - link

    So this M.2 stuff....

    Are we saying that I can buy one of these <A HREF=" M.2 MLC SSD</A>, plug it in, turn it on, and that the BIOS is going to recognize this as a drive I can then load my OS on?

  • Maiyr - Monday, May 26, 2014 - link

    rats, can't edit my own comment :(
    sorry about the atrocious link
  • Maiyr - Monday, May 26, 2014 - link

    Nevermind, I read further and see that this is expected to be possible with newer UEFI's.

  • mars2k - Monday, May 26, 2014 - link

    Ok, I've seen XP941 512GB available for sale on the web. Are these different models than those used in this review? It would seem that drives are readily available Reply
  • kwrzesien - Tuesday, May 27, 2014 - link

    It would appear to be the same model based on the labels: Reply
  • Mikuni - Wednesday, May 28, 2014 - link

    "Disk Health Report" tool is a total rip-off from CrystalDiskInfo, what a shame. Reply
  • Laststop311 - Thursday, May 29, 2014 - link

    Mini itx board with 2x pci-e 3.0 x4 m2 slots on the back and 1x pci-e 3.0 8x GPU slot would make for an amazingly compact build. This would be perfect for the ncase m1. By hiding away the storage in that case you can add extra fans and a larger radiator and keep the slim optical drive and not have to put the ssd there to keep max ventilation. Or can increase storage to 2x 512GB on back of mobo and 1TB 2.5" ssd in place of optical drive and keep max ventilation and 2TB of storage.

    I would be happy to be able to take out the hdd/ssd holder and replace my 120mm rad with 240mm rad. Since I need my optical drive I have to sacrifice some cpu cooling. A mini itx board like that would enable me a good 200-300 mhz increase to my oc.

    Amazing case get in on the pre order while you can it's just a limited run being made.
  • Antronman - Thursday, May 29, 2014 - link

    ASSRock sucks ass. Reply
  • Leandro - Wednesday, July 23, 2014 - link

    Please review the Asrock Z97 Extreme9!!
    I´m looking to this motherboard performance.
    Thank´s in advance!

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