Let's figure out how to convert internal MXM connector an external PCI-E x16 box

Discussion in 'e-GPU (External Graphics) Discussion' started by toshiki, Aug 9, 2009.

  1. sysmer

    sysmer Newbie

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    Hello ShadowsNight! I want to connect the external video card to the notebook via the mxm connector. I can buy from you an adapter with mxm in pci-e ? How much is it?
     
  2. D.Dastardly

    D.Dastardly Notebook Guru

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    Is there a way to trick motherboard into thinking there is a graphics card installed in the mxm slot?

    Asking for a different project
     
  3. ChanceJackson

    ChanceJackson Notebook Evangelist

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    I doubt it, why does the slot need to be empty?
     
  4. D.Dastardly

    D.Dastardly Notebook Guru

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    Trying to run a laptop without a graphics card installed, but the embedded controller turns it off after 30 seconds.
     
  5. ChanceJackson

    ChanceJackson Notebook Evangelist

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    Oh I see, I'm guessing this is a clevo unit? I think you're not going to have a choice but to buy a card that is compatible I know taobao rx 480s won't satisfy the EC of those systems
     
  6. ShadowsNight

    ShadowsNight Notebook Enthusiast

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    Yeah I'm pretty sure it tells there is a GPU there via the SMBus, with the alienware bios at least, since it can tell that it's an AMD or Nvidia chip, you could try shorting the PRSNT_R# (Pin 2) and PRSNT_L# (Pin 281) to ground though (for a MXM 3.0 slot). It won't hurt anything unless you get the wrong pins.
     
    Last edited: May 22, 2017
  7. frol2000

    frol2000 Newbie

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    Hello ! I am writing to you from Russia. Please help with mxm to pci-e adapter. I want to put a video card from a laptop in my PC. All old links to files have already been lost. And because of the miners in our country, there is a large deficit with video cards
     
  8. ShadowsNight

    ShadowsNight Notebook Enthusiast

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    I've actually wondered the benefits of using MXM cards for mining, they would be better power to performance at any rate. But, the problem is that your probably still better getting a desktop card, a 760GTX is 2x as fast as a 780m so you would need to spend a fair bit on the MXM cards to get the same performance.
     
  9. yotano21

    yotano21 Notebook Evangelist

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    Dont bother using any MXM for mining, they are all still too expensive for it.
     
  10. ShadowsNight

    ShadowsNight Notebook Enthusiast

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    was more that I had a passing thought one time, I have 2 780m and one 770m lying around, and performance per watt seems to be the big thing these day's, personally haven't managed to start mining, something to do with the block chain, too hard basket atm I have my plate full already :p but I did run a bench mark with ethminer and got 10.5mh/s with the 780m when compared to my 17.3mh/s benchmark with the 780gtx in my desktop it's probably better on the power side of things, at least on paper (780m 100watt vs 780gtx 350watt).

    But on the original off topic, topic there was PCI-e to MXM adaptors around, google shows lots of images but I'm not sure where to buy them anymore, I remember seeing some shady Chinese website at one point that was selling them for 60 usd. Sorry I can't be of any more help.

    On another news I've almost drawn up the final MXM board, should be down hill from here :)

    I managed to get x2 lanes running at 8gt/s for a little bit using 16 sata cables crimped in the 2x20 connectors, then I bumped it and it all went south, after that, I was going to go outside and start soldering up a board without the connectors and solder every wire to the boards but it's -1 outside here and I'm not allowed to solder in the house, I share the place and people get grumpy.

    Edit: @frol2000 try looking up HP Multi MXM probably more than your after but it's something that people are selling (at least to Australians) http://www.ebay.com/itm/HP-716553-001-MULTI-MXM-PCIe-WS460C-PROLIANT-Gen-8-713700-002-/272024112725
     
    Last edited: Jul 13, 2017
    t456 likes this.
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