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    PLEASE HELP me correctly detect and install drivers for an HD 7770 EGPU with a GT 240M DGPU

    Discussion in 'e-GPU (External Graphics) Discussion' started by LakeShow89, Dec 15, 2014.

  1. LakeShow89

    LakeShow89 Notebook Evangelist

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    Hello old friends,
    I had some cash to burn and decided to double the gaming performance of my laptop.

    So I ordered the parts from various vendors and I am waiting for them to arrive, the total cost was $65, hopefully it will be a success and tide me over until I build a beastly skylake desktop to run hololens.

    Update 12/16/14
    Successfully got X1E working. The side-effects are that I no longer have port 2 and the unused port 4 also dissipated.
    My port configuration was port 1- 0 port 2- wlan port 3- express card port 4- 0 port 5- 0 port 6- ethernet.

    As a last resort I am going to try Windows 8.
     
    Last edited: Jan 30, 2015
    LakeShow89, Dec 15, 2014
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  2. LakeShow89

    LakeShow89 Notebook Evangelist

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    OK so this is what I have so far, two graphics card reporting no errors to windows. The only problem is that neither one has working drivers. If I only install the drivers for my nvidia card it works normally but the AMD card shows an error. If I install the drivers for the AMD card and not the Nvidia card it is still not detected by Catalyst instead the AMD drivers report the Nvidia card in everything but hardware information which shows an incomplete list of the AMD card.

    This is what I have done so far:
    1. Uninstall all drivers with DDU
    2. DSDT override
    3. Then I hotplug the expresscard after post
    4. Set it to X1E mode
    5. 36 bit compaction on both DGPU and EGPU with a 32 bit restriction on the DGPU
    6. Boot windows which shows two cards running normally but the AMD doesn't output to the external display.

    Please help, thanks in advance.
     
    Last edited: Jan 30, 2015
    LakeShow89, Dec 31, 2014
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  3. LakeShow89

    LakeShow89 Notebook Evangelist

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    Benchmark scores with a CPU undervolt to 1.0625

    Stock:

    3Dmark06 6401 SM2.0 Score 2649 HDR/SM3.0 Score 2496 CPU Score 2493

    Vantage P2469 Graphics Score 2088 CPU Score 5445

    GPU OC of 10%:

    3Dmark06 6537 SM2.0 Score 2715 HDR/SM3.0 Score 2555 CPU Score 2505

    Vantage P2690 Graphics Score 2302 CPU Score 5444

    eGPU:

    3Dmark06

    Vantage
     
    Last edited: Jan 27, 2015
    LakeShow89, Jan 27, 2015
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  4. LakeShow89

    LakeShow89 Notebook Evangelist

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    Please help me figure this out. Thanks in advance.
     
    LakeShow89, Jan 30, 2015
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