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15" HP 6560b + 760GTX@4Gbps (EXP-GDC 8.4d) + Win10 x64

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System details:


  • System:
    • Hardware
      • HP ProBook 6560b
      • Core i3-2310M
      • 8GB RAM (4+4)
      • iGPU Intel HD 3000
    • Software
      • Win 10 Pro 64-bit 


  • Additions:
    • Hardware
      • nVidia 760 GTX GAINWARD Phantom
      • EXP-GDC v8.4d Express Card version
      • 650W ATX PSU
    • Software
      • Latest nVidia and Intel Graphics Drivers
      • ******'s DIY eGPU Setup 1.3
      • DSDT Editor + Compiler pack


  • Boot sequence
    • Hardware
      • All systems off/offline
      • EXP-GDC Delay Switch set to 6s delay
        • Position 1 will cause BIOS freeze/lockup !
      • Self-made from half cutted HMI cable and empty ExpressCard34 slot with EMC ferrite filter on one end
        • This allowe me STABLE PCI-e 1x 2.0 connection (GEN 2 5GT/s) without know freeze due to bad original cable
      • PSU powered on
      • Laptop powered on
      • All systems on/online
    • Software
      • Update BIOS to latest version
      • On power on, hit Esc and enter HP BIOS Config
        • Set boot mode to Legacy (Not UEFI or Hybrid)
        • Set ExpressCard slot speed to Gen 2.0 (or higher)
        • Save and exit/restart
      • Windows is running in Legacy mode/MBR disk
      • Uninstall any previously installed graphics drivers from Programs in Control Panel
      • Use Display Driver Uninstaller to clean up any previously installed graphics drivers
      • Install nVidia graphics drivers
        • Device manager now shows the installed 760GTX, but with Error Code 12 (Insufficient free resources)
      • Perform a DSDT override. Refer to this topic where i took information for mine:
      • Install ******'s DIY eGPU Setup 1.3.
        • Preferably, extract the files and write to/setup a USB stick.
        • Boot from the flash drive and install.
        • Configure as needed https://www.youtube.com/watch?v=HC99rJOtioE
        • Make sure mbr is used instead of mbr2
        • Save startup.bat
      • Reboot into DIY eGPU, and load startup.bat
      • Then chainload into Windows 10
      • nVidia Control Center must now be active and the graphics card is ready to run games, CUDA applications, etc



No big issue till now, very happy to made a self soldered HMI cable that allow me to work in GEN2 ExpressCard mode (GPU-z tell me PCIe x 16 2.0 @ 1x 2.0 during 3dMark and Fraps benchmark)


  • Performance
    • 3Dmark 06
      • 10143 (SM2.0 4079, HDR/SM3.0 5030, CPU 2507)
    • 3Dmark (steam DEMO version)
      • Firestrike 3886 (24.81 FPS Gt1, 20.92 Gt2, 8.7 FPS Physx, 7.9 FPS Combined)
      • Icestorm 22488 (98 FPS Gt1, 98 FPS Gt2, 71 FPS Physx)


Unfortunately i have bad performance on benchmark (except Firestrike) if i made a comparison also on this Forum with other systems. I don't know if Opt1.2 use pci-e compression through HD3000 or is just a CPU limit that i reach. All test are made on internal lcd only (that is my focus now).


Does anyone idea why? Any suggestion?


Follow system screenshots and pics


Self made cable



System (3dMark06 score)






Edited by metallus84
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Yeah, your processor is the weakest point in the system. The best performance for egpu provides i7 Quad Core. You should think about CPU upgrade.

You posted benchmark results - you tested on external screen (attached to egpu) or on internal screen of your laptop? 

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I am interessed only on internal display. But if i use external one should i have maximum performance (so limitation is sure CPU related?). Can i use this data to see if HD3000 compression is disabled or not?

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