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    Setting up egpu on T61p with nvidia quadro

    Discussion in 'e-GPU (External Graphics) Discussion' started by System Error Message, Oct 16, 2012.

  1. System Error Message

    System Error Message Newbie

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    Hi i'd like to set up an egpu on my t61p using the expresscard. I already have the PE4H adapter but i'd like to get nvidia optimus to work as well. Is there some sort of way to force nvidia optimus to work with 2 nvidia GPUs? I've tried searching around for the answer. I cant use the miniPCIe because than i cant use the keyboard and running at PCIe x1 is very slow at particle based physics and for transferring the rendered image to the laptop's screen.

    I need nvidia optimus for PCIe compression. I've also tried using a GPU on the lenovo's 2503 dock but even the x1 link is quite slow. Is there an alternative for PCIe compression?

    For those who have a lenovo 2503 dock and want to use a powerful GPU with it, aside from an external power source and cable extenders you could boot into windows, set the laptop on standby and plug in the GPU while its on standby and refresh the device list in device manager. If the GPU doesnt need to draw more than 50W from the PCIe slot the laptop can boot with it attached. It works very well when using an ASUS directCU GTX 580 since it draws most of its power from the 2x8pin PCIe power connecters.

    However if i can get nvidia optimus running or something for PCIe compression than i can attach 2 discrete GPUs to my laptop and use them both at the same time without a problem. if using multiple nvidia GPUs, nvidia's control panel has an option of selecting which graphics card to perform openGL rendering, physx and CUDA on which means you could play openGL games on the egpu and getting the output to your laptop monitor without using nvidia optimus.

    My main reason for using an egpu is for GPU programming and it makes it easier to test the same program/problem on different GPUs since i could swap GPUs easily without having to shut down and open up the system although WDDM is required for hot swapping GPUs.
    Any help would be very much appreciated.
    Thanks
     
    System Error Message, Oct 16, 2012
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  2. BeerZombie

    BeerZombie Newbie

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    You can't set up the optimus without the proper chipset. The T61p does not have the required chipset nor does it have the capability to do optimus because there is only a dedicated 570m nvidia gfx card onboard.

    Source: I used to have a t61p.
     
    BeerZombie, Oct 31, 2012
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