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    Elitebook 8470w upgrade to i7 3940xm

    Discussion in 'HP Business Class Notebooks' started by sysex, May 2, 2017.

  1. sysex

    sysex Newbie

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    Aloha.

    This laptop officially supports up to an i7 3840qm cpu and I'm planning to max it out, currently it runs with an i7 3610qm and it's working great.
    I'm a happy camper with this machine since 2012 and loving the fact that I have 1 sata ssd, 1 sata hdd and 1 msata ssd on a 14in lap around me at all times for on site recordings and a whole other bunch of stuff. Since I have it setup with windoze 10 and Linux and its performance is rock solid and either an 3840qm or maybe an 3940xm is on par performance-wise with a most modern 6700hq I don't see any serious reason to change my lap.

    Now my question is if any of you had success installing an i7 3940xm on this particular lap. Theoretically it's possible and I found some scarce information in the intewebs and on this forum but as I said before the information I found so far is scarce. I really don't know if this lap could support a 55w tdp cpu without throttling or if it's really supported and even if it's supported how is the overall performance. I know that the difference between the 3840qm and the 3940xm is not great and I will take the safe path eventually but I have to ask if someone made it cause I want to really max it out if possible.

    My english is not that great, sorry and thanks in advance for any helpful information. :)
     
    sysex, May 2, 2017
    #1
  2. sysex

    sysex Newbie

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    Bump :radar:
     
    sysex, Jun 4, 2017
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  3. triturbo

    triturbo Long live 16:10 and MXM-B

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    You already have a quad, so you should have the beefier (quad compatible) heat-sink. With that said I can only guess how it is going to handle the extra heat from the XM. Do you stress the CPU and the GPU at the same time? CPU only tasks might be doable, but I doubt that the cooling would be sufficient for both (CPU + GPU).
     
    triturbo, Jun 7, 2017
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  4. sysex

    sysex Newbie

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    Yes I have an i7 quad. I also stress the cpu+gpu with transcoding-rendering tasks, in realtime though I stress only the cpu (with various vst's in daw apps) which is something I care alot about, more than non realtime rendering tasks in which thermal throttling wont ruin anything, just some extra time to complete.
     
    sysex, Jun 7, 2017
    #4