System Benchmarks

Rightmark Audio Analyzer 6.2.5

The premise behind Rightmark:AA is to test the input and output of the audio system to determine noise levels, range, harmonic distortion, stereo crosstalk and so forth. Rightmark:AA should indicate how well the sound system is built and isolated from electrical interference (either internally or externally). For this test we connect the Line Out to the Line In using a short six inch 3.5mm to 3.5mm high-quality jack, turn the OS speaker volume to 100%, and run the Rightmark default test suite at 192 kHz, 24-bit. The OS is tuned to 192 kHz/24-bit input and output, and the Line-In volume is adjusted until we have the best RMAA value in the mini-pretest. We look specifically at the Dynamic Range of the audio codec used on board, as well as the Total Harmonic Distortion + Noise.

Dynamic Range for the Z97 Extreme6

Rightmark: AA, Dynamic Range, 24-bit / 192 kHz

Rightmark: AA, THD+N, 24-bit / 192 kHz

While the Dynamic Range measurement is on par with the other ALC1150 motherboards we have tested, the THD+N is low, coming in above -80 dBA. In the graph above we can see harmonics over the 1 KHz pulse which may be a contributing factor.

USB Backup

For this benchmark, we run CrystalDiskMark to determine the ideal sequential read and write speeds for the USB port using our 240 GB OCZ Vertex3 SSD with a SATA 6 Gbps to USB 3.0 converter. Then we transfer a set size of files from the SSD to the USB drive using DiskBench, which monitors the time taken to transfer. The files transferred are a 1.52 GB set of 2867 files across 320 folders – 95% of these files are small typical website files, and the rest (90% of the size) are the videos used in the WinRAR test. In an update to pre-Z87 testing, we also run MaxCPU to load up one of the threads during the test which improves general performance up to 15% by causing all the internal pathways to run at full speed.

USB 2.0 Copy Times

USB 3.0 Copy Times

ASRock no longer package its motherboards with XFast USB, and it would seem that the lack of a Turbo mode pushes the USB 3.0 performance in the wrong direction.

DPC Latency

Deferred Procedure Call latency is a way in which Windows handles interrupt servicing. In order to wait for a processor to acknowledge the request, the system will queue all interrupt requests by priority. Critical interrupts will be handled as soon as possible, whereas lesser priority requests, such as audio, will be further down the line. So if the audio device requires data, it will have to wait until the request is processed before the buffer is filled. If the device drivers of higher priority components in a system are poorly implemented, this can cause delays in request scheduling and process time, resulting in an empty audio buffer – this leads to characteristic audible pauses, pops and clicks. Having a bigger buffer and correctly implemented system drivers obviously helps in this regard. The DPC latency checker measures how much time is processing DPCs from driver invocation – the lower the value will result in better audio transfer at smaller buffer sizes. Results are measured in microseconds and taken as the peak latency while cycling through a series of short HD videos - less than 500 microseconds usually gets the green light, but the lower the better.

DPC Latency Maximum

Our previous review, the Z97 MPower Max AC had struck a new record for DPC Latency however the ASRock Z97 Extreme6 takes the crown with a very impressive 39 microseconds. This pretty much confirms that there was an issue with Z87 which has been fixed with Z97, although perhaps at the expense of POST time.

2014 Test Setup, Power Consumption, POST Time Real World CPU Benchmarks: Rendering, Compression, Video Conversion


View All Comments

  • jed1972 - Sunday, February 1, 2015 - link

    Can i use a normal m.2 and ultra m.2 while using dual sli on my asrock z97 extreme 6? Reply
  • Rub9000 - Monday, June 8, 2015 - link

    My biggest problem with this board is how picky it is with hard drives and video cards. I removed a drive (I have four) and wanted to use it to build a computer for my wife. I when I removed it, the motherboard freaked out and I had to format the boot drive is reinstall windows. No clue why. The 2nd thing is I use a Nvidia 660 gtx. (yes I know it is an old card). When I installed it I had to use the Gen 2 option in the bios to get the pc to boot. I contacted ASrock to help figure it out with no help from them at all. I ran into the option by chance and used it. It worked and I could log on. No thanks to ASrock support. They are awful. They even belittled my tech back ground when I posted the question on line. (I have a BSIT and over 20 years in enterprise systems support). All that said, I will not buy from ASrock again. Not a company I want to deal with in the future. Reply
  • xtalx - Friday, October 9, 2015 - link

    I have an issue with this board as well, when trying to boot from my SSD.
    I have the following cards on the board:

    PCIE2 - r9 280x
    m.2 ultra - sm951 512MB
    PCIE4 or 4 - Highpoint RAID 2720SGL

    If I have the HighPoint RAID card connected, after it goes through the bios / drive checks the screen simply goes blank and the cursor flashes in the top left hand corner and Windows 7 doesn't boot. If I press any keys, such as NUM Lock the system just freezes.
    If I remove the card it boots.
    Tried various card alignments, but still no joy.
    This card works fine in my ASROCK AMD chipset board. I've gone through the UEFI and removed all reference of the HP RAID Card from boot options, set the SATA mode to AHCI, but still no joy.
    I'm hoping some one on the ASROCK forum has come across this before and has a solution.

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