The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    HP DV6-6b65ed (A6-3410MX) Noob undervolting attempt...

    Discussion in 'HP' started by Max Euwe, Mar 14, 2012.

  1. Max Euwe

    Max Euwe Newbie

    Reputations:
    0
    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    5
    Hi
    First of all I'd like to apologise for any errors in my english, I do my very best :)
    I bought this laptop (see title) around 6 months ago after my Packard Bell (Turion X2 RM-70 - 4GB DDR2) just died without warning. I am not a hardcore gamer, and ever since I bought an extremely cheap media player, wich plays just about anything I throw at it, I don't do much video coding anymore either. Because of this the performance of the A6-3410MX is more than I need on a normal day. I am a total noob when it comes to either (over/under)clocking or -volting. But sometimes I just feel "adventurous (? - probably not spelled right, right ?)", so I decided to try some under(clocking/volting) to lower my temps and perhaps get some more battery time (even though this laptop runs pretty cool on stock settings already). Here is what I tried so far, and it is quite possible these are very stupid settings (They appear to be very stable though). If they are stupid I would really appreciate some suggestions as to what makes a proper undervolt for this CPU.

    Original:
    B0 - 2300 - 1.3875V
    P0 - 1600 - 1.1500V
    P1 - 1500 - 1.1250V
    P2 - 1400 - 1.0875V
    P3 - 1300 - 1.0375V
    P4 - 1200 - 1.0125V
    P5 - 1000 - 0.9625V
    P6 - 0800 - 0.9375V

    Current:
    B0 - 2300 - 1.2000V
    P0 - 1600 - 1.1250V
    P1 - 1500 - 1.0875V
    P2 - 1400 - 1.0500V
    P3 - 1200 - 1.0000V
    P4 - 1000 - 0.9000V
    P5 - 0800 - 0.8000V
    P6 - 0500 - 0.7000V

    So far I have not had any BSOD or lockup or anything. I admit I only tested it with Deep Rybka 4.1 ( a multicore 64bit chess engine, wich seems to max out every core when it runs). When I'm simply surfing the net the CPU has an avarage temp of just 27-29 Celsius and when running Rybka the max is just 65 Celsius. Since I'm a complete noob when it comes to these things I'm open to any constructive criticism.

    UPDATE:
    After some further trial & error, it appears that 0.7V is very near the absolute minimum this CPU needs to operate, even at reduced clockspeeds. It locked up at 0.65V, and at 0.6750V I got weird graphical corruptions when dragging windows between dual monitors. Too bad I've gotten 0 response yet. I guess this CPU is not that popular, or perhaps undervolting/-clocking is not as glamourous as overclocking to 10GHz with helium cooling and lots of neon lighting added to your box :)
     
    Max Euwe, Mar 14, 2012
    #1