Asus ROG Strix GL702ZC / G702ZC / S7ZC with Ryzen 7 1700 8-core CPU and a Radeon RX580 GPU

Discussion in 'Asus' started by sicily428, May 30, 2017.

  1. Deks

    Deks Notebook Prophet

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    forgot to quote
    please delete,
     
    Last edited: Sep 30, 2017
  2. Deks

    Deks Notebook Prophet

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    I think that GL702ZC might be operating in single-channel mode because Notebookcheck indicated that the RAM is a single 16GB stick at 2400 MhZ.

    Maru... that last review you linked to seems to have 24GB installed in the laptop, however, the RAM sticks aren't identical (obviously) as it implies 1x16GB stick and 1x8GB stick.
    In order for dual channel to be activated, RAM sticks need to be identical (at least in RAM speed and quantity - don't think that latency matters for dual channel, or if one ram stick has better latencies than the other, then it will default to the other stick speeds).

    As a result, the laptop might not be operating in dual-channel mode and the AIDA memory test reports too low MB/s.
    This yotube video compares single-channel vs Dual channel RAM on Ryzen (relevant timestamp included) :


    If you noticed, the AIDA test results seem eerily similar and produce almost the same (low) MB/s.

    I suspect that if we upgrade the RAM to 32GB with same speeds, dual channel will be activated and might improve overall performance - unless of course the laptop does not support Dual Channel, which would just be plain nuts and downright impossible for ASUS to botch this kind of machine (unless it was intentional).
     
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  3. Deks

    Deks Notebook Prophet

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    Ah, I see that Notebookcheck answered a question for us on whether the CPU is BGA or not.
    It's interchangeable.

    Sadly though, the GPU seems to be soldered (dang).
    Would have been nice to upgrade to a potential Vega or Navi replacement down the line (oh Asus, why couldn't you turn it into an MXM gpu?).
    Though, given the issues we ended up with in exchanging laptop gpu's in the past due to them being ridiculously expensive, and finding proper MXM type...

    But as I said, it looks like we might benefit from Ryzen+ (12nm when it comes) or Ryzen 2 upgrade - which should arguably be a lot easier and cheaper for us to replace because we don't have to find a notebook specific part. Just put the desktop part into a notebook.
     
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  4. Papusan

    Papusan JOKEBOOKS = That sucks!! STAHP! Dont buy FILTH...

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    Depends on if you are allowed to flash mod firmware with new Microcode. I don’t know how strict Asus is with secure Boot.
     
  5. Deks

    Deks Notebook Prophet

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    Since the motherboard is B350, it could be said the situation is a bit different, and... simplified.

    Asus did mention to me in their emails that they tend to include BIOS updates for these laptops... so, is it possible they might include microcode updates themselves?
     
  6. Papusan

    Papusan JOKEBOOKS = That sucks!! STAHP! Dont buy FILTH...

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    What changes Asus will do for their model refresh, will determine if this is possible. Time will tell.
     
  7. Maru

    Maru Notebook Consultant

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    Here's a quick survey of what some retailers' websites claim now.
    (Given that no one has reported receiving one yet, I suspect "in stock" means "in transit to store", not always "in store".)
    TZStateGL702ZC-Store2017-10-08
    -8ca.usWB74ExcaliberPC.com00, preorder
    0ieGC098TElara.ie00, 2017-10-26
    0ukGC098TSaveOnLaptops.co.uk12 in stock
    0ukGC098TCCLOnline.com10+ in stock
    0ukGC098TGetronics.com00, 2017-10-26
    0ukGC098TLaptopsDirect.co.uk00, 2017-10-10
    0ukGC104TAshDistribution.co.uk08 in stock
    0ukGC104TSaveOnLaptops.co.uk08 in stock
    0ukGC104TOverclockers.co.uk00, preorder
    0ukGC104TGetronics.com00, 2017-10-26
    1atGC204TSyswork.at00, not available
    1atGC206TElectronic4you.at00, preorder
    1atGC207TSyswork.at00, not available
    1beGC104TCentralPoint.be00, 2017-10-21
    1deGC006TAmazon.de00, not available
    1deGC104TNotebooksbilliger.de00, mid-Oct 2017
    1deGC174TBaur.de00, 1 week
    1deGC179TSaturn.de00, 7 weeks
    1deGC204TCyberport.de01+ immediately
    1deGC207TComputerUniverse.de00, unknown
    1frGC201TMaterial.net00, 2017-10-31


    Sorry to hear that AMD still does not support flex mode. (Intel has implemented flex mode for enabling dual channel access using mismatched DIMM sizes since about 2004.)

    Yes the AIDA result shows single channel provides half the bandwidth even for a 4-core R5 1400.
    (The rest of the results show the performance difference was small for applications, though it is for a 4-core R5 1400, not an 8-core R7 1700.)
    (Not referenced, but for anyone watching this video, beware: The first Cinebench page shows two different tests, not the same test. The Cinebench and Photoshop charts are misleading with huge lie factor -- the difference is on the order of 1%, not 50% as charted. The compression section was also misleading, using double time until the first finished, then real time until the second finished, exaggerating the difference.)

    Yes, it could be suspicious that no preview or review unit has been run with dual channel memory. 24GB is an unusual configuration, so it is likely intentional. Makes one wonder if anything gets worse when dual channel is used (heat, noise, throttling, ...). An opportunity for reviews.
     
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  8. Deks

    Deks Notebook Prophet

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    It would seem reviewers simply don't go into too much depth when it comes to technology.
    They didn't try tweaking it either (for instance, the RX 580 can easily be undervolted, and yet, no one tried it as of now in this laptop).
     
  9. hmscott

    hmscott Notebook Nobel Laureate

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    It's the same or worse in the general community, it's a long time for some to get comfortable with the idea of gaining real control over their laptop, to embrace the magic so to speak.

    It's gotten a lot better, reviewers are now at least mentioning undervolting, and some of them are doing it - at least for the CPU, and a few are even putting out undervolting CPU / GPU walk-throughs.

    It's improved a lot over the last 6-12 months, and I have hopes it will continue. As they try more things and share them through video's more people will be on board and acting in the community to help others, creating a grass roots ground swell of support. :)
     
  10. Deks

    Deks Notebook Prophet

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    Indeed... as for Nvidia's GPU's... they can't really be undervolted without lowering the clock speeds because the two are linked.
    As such, when talking about voltages, AMD and Nvidia aren't comparable. For all intense and purposes, nvidia already runs on optimized Voltages (thanks in part due to auto-voltage tuning, and Nvidia setting a lower upper voltage threshold lower than 1.2V - plus using a manuf. process better suited for higher clocks), whereas AMD does not... hence why undervolting shouldn't be overlooked in AMD's case or considered any voltage 'tweaking' as 'cheating'.

    At the very least, we know that the ROG laptop with Ryzen and RX 580 does not throttle in gaming.... what will be interesting to see if we can undervolt the RX 580 (most likely yes) to reduce power consumption and reduce temperatures.
    If the RX 580 can undervolt in this laptop, it might be possible we could overclock the GPU as well to run a tad faster (again for a lower power draw than stock).

    Will have to wait and see until I can get my hands on the thing.
    I've been waiting for my paycheck to finally clear so I could get the laptop, but there have been issues.
     
    Last edited: Nov 4, 2017
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