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    RMclock and the IFL90- question about IDA

    Discussion in 'Other Manufacturers' started by 000111, Aug 10, 2008.

  1. 000111

    000111 Atari Master

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    hey all. been a long time since i rapped at ya.

    i have recently discovered the joy of undervolting. got a question. does anyone know if intel dynamic acceleration (IDA) is turned on/off in the bios? i have seen posts which claim this.

    the reason i ask, is i have been using rmclock to undervolt with pretty good results... it rules!

    my only problem is, when i enable IDA (12x), things get screwy. when i go back and monitor my cpu with IDA enabled, my voltages are wrong (whatever voltage i select for 12x shows up for 11x, can't ever see 12x, but that might be an update interval issue).

    i thought this might be because it isn't supported by our bios? i am running bios version 1.12.

    i have just disabled the IDA, and things run smoothly. probably don't even need it, i'm not convinced it really improves performance anyway... so what do you guys think, is this a rmclock issue, a bios issue, or both?
     

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    000111, Aug 10, 2008
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  2. Ayle

    Ayle Trailblazer

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    Just leave IDA at the default voltage, IDA is basically the overclokcing of only one core while the other idle from what I understand. It's normal for things to get screwy if the voltage is too low. Anyway the system almost never use that state so disabling it won't create any problem.
     
    Ayle, Aug 10, 2008
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  3. flipfire

    flipfire Moderately Boss

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    IDA is useless. Dont bother with it.

    Read the bottom part of the undervolting guide for more info
     
    flipfire, Aug 10, 2008
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  4. 000111

    000111 Atari Master

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    i agree flipfire- i have read the end of the guide and goodled IDA... seems like no big whoop. rmclock sure is sweet. lowered my temp under load substantially. i will keep the IDA turned off. woot!
     
    000111, Aug 10, 2008
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  5. Dirt

    Dirt Notebook Evangelist

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    If you enable IDA you'll have the same as IDA voltage on your highest normal FID. Unfortunately there is no other way then that, I simply don’t select IDA in manual voltage override menu since it differs 0.5V on my CPU making it a lot hotted in load.
     
    Dirt, Aug 11, 2008
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  6. 000111

    000111 Atari Master

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    ah. that is a good answer, dirt. i see you have basically the same rig as i do, so you know first hand. much obliged. how did i ever survive without rmclock? sure do love those low temps under load!
     
    000111, Aug 11, 2008
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  7. skitpt

    skitpt Notebook Enthusiast

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    Have you been able to really low the temps under load and idle with undervolting ?

    Did it affect perfomance ?
     
    skitpt, Aug 13, 2008
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  8. Ayle

    Ayle Trailblazer

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    What VIDs did you use?
     
    Ayle, Aug 13, 2008
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  9. 000111

    000111 Atari Master

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    hey skitpt-

    Have you been able to really low the temps under load and idle with undervolting ?

    yes the temps are lower
    at idle- a couple degrees.
    at load- about 10 degrees lower.
    also- the gpu runs a bit cooler under load since the cooling system has less heat to dissipate.

    Did it affect perfomance ?

    performance is not afffected.

    also- battery life is a bit longer. didn't time it or anything, but it's definitely longer.


    ayle-
    the voltages are in the image on the OP. i just set the 11x to one and checked the
    'auto adjust intermediate voltages' box...



    to give credit where credit is due- i used flipfire's undervolting guide;
    (now whith the 'm' in .com- thanks for the correction flipfire)
    http://forum.notebookreview.com/showthread.php?t=235824
     
    000111, Aug 13, 2008
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  10. flipfire

    flipfire Moderately Boss

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    Cheers, you forgot the m in .com :D

    A user did a proper benchmark on power consumption. The discharge rate fell by about 20% when undervolted.
     
    flipfire, Aug 14, 2008
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