*HP EliteBook 8740w Owners Lounge - PART 2*

Discussion in 'HP Business Class Notebooks' started by Aikimox, Sep 7, 2010.

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What is your EliteBook 8740w config (select one from each category)?

  1. Non-DreamColor2 screen

    94 vote(s)
    34.9%
  2. DreamColor 2 Screen

    113 vote(s)
    42.0%
  3. Dual-core Processor

    63 vote(s)
    23.4%
  4. Quad-core Processor

    137 vote(s)
    50.9%
  5. ATI M7820 Graphics

    120 vote(s)
    44.6%
  6. Nvidia FX 2800M

    43 vote(s)
    16.0%
  7. Nvidia FX 3800M

    47 vote(s)
    17.5%
  8. Nvidia FX 5000M

    27 vote(s)
    10.0%
  1. 83bj60

    83bj60 Notebook Evangelist

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    Indeed, I use the Thinkpad Soft Dome on my HP 8730w... Got about 10 spares, I tend to wear these things out quick, abrasive fingers ;-)

    I'm really glad, because that is precisely the reason I've been sticking with my DC equipped 8730ws and love my 30" NEC PA301W... Good screens are a must for intensive work... I just found another 8730w with an Nvidia FX 3700M card, he's asking $125 no battery, hopefully I'll be able to get it for $100 or less to be overhauled into yet another DC machine, the last one I gave to my son ;-)

    Great to know!!!
     
  2. StuckInÐeNearPast

    StuckInÐeNearPast Newbie

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    With regards to over/underclocking, the most prevalent program to use is MSI Afterburner; although it is designed with Nvidia GPU's in mind, it does work on ATIs/AMDs as well.

    After loading up Afterburner, it recognised my ATI Firepro M7820 as such, locked out the core voltage and core power limit options and let me change the core clock and memory clock sliders. By default these max out at the normal limits of 700 MHz and 1000 Mhz respectively, quickly lowering them to 600/900 and booting FurMark confirmed that the GPU was in fact only cycling up to those frequencies and with a corresponding loss of performance.

    In the options menu there is a specific section for AMD GPUs, where I selected the "extend official overclocking limits" option. After a reboot I could now take the core clock upto 900 and memory to 1300. Turning them upto 750 and 1050 and loading up FurMark confirmed again that the M7820 clocked up from idle to these new maximums.

    Again my testing of GPU performance consisted of 3DMark03, 06 and Vantage with the results present using the default config scores from my last table and the new overclocked scores. The benchmarks were only run once without averaging runs, with approximately 10 minutes between benchmarks to allow the GPU to cool back down to the low 40's. Any subscores the benchmarks throw out are written in brackets in the same order they are given by the software.

    3DMark03: 39255 3DMarks (1795), 41006 3DMarks (1823) [750-1050 OC] +4.461%
    3DMark06: 12785 3DMarks (5548/6293/2886), 13075 3DMarks (5737/6474/2886) [750-1050 OC] +3.407%/+2.876%
    3DMark Vantage Entry: E18210 (33068/7755), E18360 (34146/7692) [750-1050 OC] +3.260%
    3DMark Vantage Performance: P8083 (8259/7598), P8472 (8739/7761) [750-1050 OC] +5.812%
    3DMark Vantage High: H5566 (5299/7792), H5845 (5604/7733) [750-1050 OC] +5.756%
    3DMark Vantage Extreme: X3913 (3814/7738), X4149 (4050/7745) [750-1050 OC] +6.188%

    As you can see the percentage increases in scores (only based off of the GPU score, ignoring the CPU values) scale quite nicely with how CPU limited the benchmark is (although why 3DMark03 gets off better than 06 is a bit of a mystery as generally older 3D programs are CPU limited). Given that these benchmarks are only approximately 10-15 minutes long with a short break for CPU tests part way through, my Temps only hit 75 degrees, no proper stability testing was made and core voltages were not changed, this was more a proof of theory test than anything more rigorous or permanent.

    As an aside, the M7820/Mobility Radeon HD5870 is basically an underclocked HD5770 which has clockspeeds of 850 and 1200 and an official TDP of 108W vs. our 50W. So aside from chip binning, more robust graphics board power delivery systems and increasing core voltages a bit, the M7820 might be able to hit those clockspeeds, but at the expense of doubling the heat output

    Conclusion/TL;DR:

    MSI Afterburner makes it easy to downclock GPUs for lower power consumption or overclock for more performance. M7820 officially tops out at 700/1000 so needs an extra tick box checked to allow for overclocking.

    A 6.071% overclock led to an increase in performance between 2.876% and 6.188% depending on how GPU limited the benchmark was.
    Stability was not tested and the GPU core voltage was not changed from the default 1.05V
     
    Last edited: Jan 17, 2019
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  3. MobileArtist

    MobileArtist Notebook Deity

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    • Great post. I'd heard of Afterburner, and will try it.

    Being untutored in underclocking/overclocking, if anybody has any suggestions for where to push the sliders with a 5000M to bring down power consumption, I'd really appreciate it.
     
    Last edited: Jan 17, 2019
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  4. MobileArtist

    MobileArtist Notebook Deity

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    So Afterburner will work on any machine… It's not dedicated to MSI?

    Another tech wizard on these forums suggested decreasing both core and memory equally in 50 MHz increments, so that's what I'm going to do.

    Does Afterburner give a reading of energy consumption?

    Thanks!
     
  5. StuckInÐeNearPast

    StuckInÐeNearPast Newbie

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    Yes, Afterburner works on any card/machine, not just MSI.

    I am new to overclocking myself, I just thought I'd give it a go and see what the results were like. Now considering power usage scales linearly with frequency, and for example the Quadro 5000M has a default clock of 810 MHz and 2400 MHz, if you decrease those by 50 MHz to 760 and 2350, the TDP should theoretically drop form 100W to 96W assuming both the GPU core and Memory chips use equal amounts of power. A more aggressive drop to 610 and 2200 would equal 83.5W power and so on.

    Afterburner might be able to give power readings, but only on newer GPUs which have more advanced monitoring built in. With cards as old as the ones allowed by default in the 8740w, we just have to keep an eye on the temperatures and guess power usage (unless you have a socket based power usage meter).
     
  6. MobileArtist

    MobileArtist Notebook Deity

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    83bj60 pointed out that the 5000M uses too much power doing simple things, like typing. My goal is to underclock to the point where energy consumption is closer to average.
     
  7. StuckInÐeNearPast

    StuckInÐeNearPast Newbie

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    I have recently read about a program distributed with Nvidia drivers called NVIDIA’s System Management Interface (nvidia-smi) which should give you very detailed information and access to your GPU (I believe your 5000M is the oldest Quadro this software supports semi-well). Using this program (it is run via the Window's command line) you can control your cards maximum TDP among other things, so while you are just on your desktop for example you can tell it to limit the card to 20W or something reasonable like that.

    Links to explain the software:

    https://nvidia.custhelp.com/app/answers/detail/a_id/3751/~/useful-nvidia-smi-queries
    https://www.microway.com/hpc-tech-tips/nvidia-smi_control-your-gpus/
    https://cryptomining-blog.com/tag/nvidia-change-power-state/
     
  8. MobileArtist

    MobileArtist Notebook Deity

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    Boy, I'm not all that comfortable with command line.
     
  9. MobileArtist

    MobileArtist Notebook Deity

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    I have 2 8740Ws, one with the 5000M, one with the ATI 7820. When I had problems with Crysis game on my Windows 10 5000 machine, GOG gave me a number of steps, with the last one being to update the video driver, which I did with in device manager. That was a disaster, causing a serious crash that I could not fix without taking it too tech support.

    Ultimately I solve the problem, but on my Window 7 7820 machine a legacy game, Mafia 1, refuses to run, installing fine, but never opening onto the game. GOG once again gave me the same steps, with the last one being to update the graphics card. According to the HP web site my driver is two years older than the newest one. Does it seem likely that this might be the source of the problem? The guy at AMD told me to use the AMD cleanup utility, which I think I should do in safe mode. Then I should install the new driver. Is this a safer route than what I did before… Installing through device manager?

    The other interesting thing is that GOG suggested I install Directx 9, which I did to no effect. Originally the CD version of this game required Directx 8 or 8.1. I assumed that GOG knows what it's doing with its DRM free version, but maybe they're wrong, and the game needs Directx 8.1.
     
  10. MobileArtist

    MobileArtist Notebook Deity

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    Crickets in the night, a lonely dog barking, the distant sound of a train… But no people. Where did everyone go?
     
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