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    AS 6920G Temperature Control

    Discussion in 'Acer' started by DarkSilver, Jun 19, 2009.

  1. DarkSilver

    DarkSilver MSI Afterburner

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    After I check some stuff using EVEREST Ultimate Edition and Realtemp 3.0, I found something interesting.
    AS 6920G, Core 2 Duo 2.1 T8100 maximum temperature(TJmax) is 105C.
    The processor would shutdown itself when it reached 105C to prevent damage.
    I guess the T-series(T8300, T8500, and so on) should have at least 100++C maximum temperature(TJmax).
    So, to those who afraid their T-series processor destroy by overheat, check it using Realtemp 3.0 or EVEREST Ultimate Edition.
    D/L for EVEREST Ultimate Edition(it stated your DJmax in Computer tab, overclock selection) , http://hotukdeals.com/item/419238/free-everest-ultimate-edition-4-6-f/
    D/L for Realtemp 3.0(you can get your DJmax value by adding your current temperature and distance to DJmax temperature), http://www.techpowerup.com/realtemp/

    -Half Multiplier and RMclock, Power Option(windows) and Acer ePower Management-
    RMclock does not support half multiplier, which mean it reads 6x, 7x, 8x,9x,10x,11x and more. It couldn't read 8.5x, 9.5x, 10.5x, 11.5x and so on.
    However, we need to select highest Multiplier which is IDA to make sure the HALF-MULTIPLIER processor max-out the speed. Yet, the other FULL MULTIPLIER processors do not need to select IDA to max-out the speed.
    After all, RMclock gives unstable Processor speed(overclocked sometime and back to normal sometime within seconds) on HALF MULTIPLIER Processors.
    Power Option by Windows, when you choose it to run maximal. It same with RMclock, run overclocked and unstable too. I guess it doesn't support HALF MULTIPLIER.
    Acer ePower Management, same as the other. Runs overclocked and unstable when selecting maximum processor speed. Does not support HALF MULTIPLIER as well.

    For example(RMclock as my experiment since it can show detail clearer than Power Option and Acer ePower Managment):
    T8100 is 10.5x Multiplier, 2.1GHz.
    If we choose 10x Multiplier, we would lose 100Mhz speed.
    So, we got to choose 11x Multiplier since there is no 10.5x for us to choose.
    11x is IDA. We would have extra speed! Lame! That is not right!
    11x of multiplier indeed increase the processor speed! Extra 100MHz.
    But it is unstable! The processor runs 2.1GHz for a few seconds and runs 2.2Ghz for a few seconds.
    I read a post somewhere, it stated in order to use 10.5x in RMclock, we need to disable Engage Dynamic Acceleration(IDA) in the advance tab.
    However, it does not solve the problem. The RMclock reads itself being 2.1Ghz for a longer period but still 2.2GHz would pop-up sometime. Wooow! Not really!
    After that, I checked it using EVEREST Ultimate Edition, Nvidia System Tools(Monitoring) and CrystalCPUID. The result is the processor is still running on 2.2Ghz a few seconds and then turns to 2.1GHz for a few seconds.

    In order to correct it, I used CrystalCPUID to create a new FID and VID profile for AS 6920G. I put 10.5x FID and 0.925V VID. After all, I checked it with EVEREST Ultimate Edition again. It runs stable at 2.1GHz.
    RMclock couldn't work with CrystalMarkCPUID. RMclock would override any profiles. So, I have my RMclock turned off.
    CrystalMarkCPUID profile would not start automatically, you need to click the profile everytime you restart your computer.

    -Throttling Problems-
    I still haven't test CrystalCPUID could solve the throttling stuff of AS 6920G. Need some time to figure it out.
    I get lower VID usage and stable Processor speed by using CrystalCPUID EIST profile.
    Personally, I hope the throttling problems is due to overclocked and unstable processor speed by Power Option(windows), RMclock and Acer epower Management.
    Sad, the CPU still throttle. I tested it by intense 3D gaming. My wish and hope were destroyed in a blink of eyes. T.T
    I am switching back to RMclock now.

    To those who doesn't have any throttling problems, CrystalCPUID might be your choice!
     
  2. DarkSilver

    DarkSilver MSI Afterburner

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    Information Updated.
    Bump!