Dual IDA ... FTW

Discussion in 'Hardware Components and Aftermarket Upgrades' started by miro_gt, Mar 30, 2011.

Thread Status:
Not open for further replies.
  1. miro_gt

    miro_gt Notebook Deity

    Reputations:
    433
    Messages:
    1,751
    Likes Received:
    4
    Trophy Points:
    56
  2. triturbo

    triturbo Long live 16:10 and MXM-B

    Reputations:
    1,548
    Messages:
    3,637
    Likes Received:
    1,130
    Trophy Points:
    231
    Congrats :D
     
  3. 2.0

    2.0 NBR Macro-Mod® Super Moderator

    Reputations:
    13,276
    Messages:
    7,671
    Likes Received:
    1,088
    Trophy Points:
    331
    All good as long as you have a BIOS that can disable EIST.
     
  4. kent1146

    kent1146 Notebook Prophet

    Reputations:
    2,331
    Messages:
    4,396
    Likes Received:
    427
    Trophy Points:
    151
    Excuse my ignorance, but what is Dual IDA, and what is the big deal with it?
     
  5. tuηay

    tuηay o TuNaY o

    Reputations:
    492
    Messages:
    3,711
    Likes Received:
    0
    Trophy Points:
    105
    wonder as well.
     
  6. TANWare

    TANWare Just This Side of Senile, I think. Moderator

    Reputations:
    2,061
    Messages:
    8,026
    Likes Received:
    2,133
    Trophy Points:
    331
    A free overclock. Most CPU's are locked at their frequency. With EIST, if the CPU supports it, when one thread is running and the other is idle the one core can go up 0.5 on the multiplier above stock. So a 2.26 GHz core will run at 2.4 GHz on the one core. If you disable EIST then you can enable IDA on both cores so that the 2.26 GHz CPU runs on both cores at 2.4 GHz all the time............
     
  7. 2.0

    2.0 NBR Macro-Mod® Super Moderator

    Reputations:
    13,276
    Messages:
    7,671
    Likes Received:
    1,088
    Trophy Points:
    331
    The overclock gain is 5-13%. Depends on CPU and FSB.

    For instance, on a T9300 (2.5ghz), you gain 2 extra multipliers; 13, 13.5.
    FSB = 200mhz. 13.5multiplier x 200FSB =2.7Ghz. A 8% gain.

    Or on a T9550(2.66ghz), you gain 1 extra multiplier; 10.5.
    FSB=266Mhz. 10.5 x 266 = 2.8Ghz. A 5% gain.
     
  8. tuηay

    tuηay o TuNaY o

    Reputations:
    492
    Messages:
    3,711
    Likes Received:
    0
    Trophy Points:
    105
    Won't this produce more heat and make your laptop overall run warmer? I'm not even mention the loss of battery life when running on battery.
     
  9. 2.0

    2.0 NBR Macro-Mod® Super Moderator

    Reputations:
    13,276
    Messages:
    7,671
    Likes Received:
    1,088
    Trophy Points:
    331
    No, since there's no gain in power draw or increase in voltage. You're just using the CPU's available voltage. In fact, I have mine undervolted at max multiplier using ThrottleStop. See in the pic above where it says "VID?" You can use that to increase or decrease the voltage supplied to the CPU at that multiplier. Use Intel Burn Test to test if you have gone too low for stability.

    And there wouldn't be any loss in battery life either in you set a battery profile in ThrottleStop to disengage the use of Dual IDA. With ThrottleStop, you can also set SLFM mode.
     
  10. tuηay

    tuηay o TuNaY o

    Reputations:
    492
    Messages:
    3,711
    Likes Received:
    0
    Trophy Points:
    105
    I see. I've asked this in ThrottleStop therad also, but I've have my CPU at 11x now. What I've wonder, is that the max my CPU can go up? Also, there isin't any way to incrase FSB in ThrottleStop, correct?

    I'm currently stuck at 11.00 x 266.0 MHz = 2926.3 MHz
     
Loading...
Thread Status:
Not open for further replies.

Share This Page