DIY eGPU experiences

Discussion in 'e-GPU (External Graphics) Discussion' started by master blaster, Sep 18, 2009.

  1. AzzMan

    AzzMan Notebook Enthusiast

    Reputations:
    7
    Messages:
    12
    Likes Received:
    0
    Trophy Points:
    5
    Does anyone have any issues with their ATX switch from HWTools?

    It worked for a couple days, then all of a sudden stopped. The PSU doesn't turn on at all if using the switch. I now have to use a paperclip to turn the PSU on to power the PE4H 2.4. This works, but I'd much rather have a working switch!

    I contacted BPlus support, and they suggested a higher wattage PSU. I'm using an Antec Basiq 500W, and as I said, it works with the paperclip.

    Any thoughts?
     
  2. apollo-fox

    apollo-fox Notebook Enthusiast

    Reputations:
    28
    Messages:
    21
    Likes Received:
    0
    Trophy Points:
    5
    Got Optimus working on my system and answered my own questions. 3DMark06 score of 11883. The one step I didn't add was to select preferred 'integrated' graphics in the Nvidia control panel. So the setup would be this:

    1// Install universal 258.96 drivers with 64-bit Optimus .inf in installation folder
    2// DIY ViDock Setup 1.x > Disable dedicated graphics > chain-load W7
    3// Boot with GTX 460 'on', but without expresscard plugged in
    4// Plug in expresscard after Windows boots
    5// Select preferred 'integrated graphics' in Nvidia panel.
    6// Test

    Thanks Nando, Nautis et al for your hard work. Will try x2 testing soon if a PM3N pops up!

    [​IMG]
     
  3. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

    Reputations:
    4,127
    Messages:
    7,893
    Likes Received:
    5
    Trophy Points:
    0
    NVidia have neutered the Optimus performance tweak to only work when a x1 link is detected. Meaning then your x2 setup would be non-Optimus. Performance of x1.Opt versus x2 here shows them quite similar with x1.Opt bettering x2 in 3dmark06 and 3dmarkvantage.

    Use a small precision screwdriver to enlarge the SWEX pins that the paperclip operates on. The pins may be damaged or are not making correct contact.

    There has been no change to the grub4dos chainloading \config\menu.* config files b/w version 1.0e5 to 1.0e6.

    I would dearly like to see your T9500-2.6 HD6850@x1E benchmark results. The 6930P does use expresscard slot 3 so could do a x1E link.
     
  4. giux787

    giux787 Notebook Enthusiast

    Reputations:
    0
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    5
    Hi, I tryed harder and I got near a solution, ( I hope to )... and sorry, probably I was messing something yest, today chain works.
    compiling config/startup like so:

    call iport x2 3
    call waitvid...timeout id...
    call witvid load -d ...id..
    call iport restore
    call iport dedicated off
    call pci
    call grub4dos w7

    In Dos the HD6850 is being recognized, A:.....bin missing use gt470.bin dump save successfull... when the call iport dedicated off start
    (SETPCI =.0.0...... ) it freeze.... I will try more config... if anyone had this problem and got through it... thnx anyway.
     
  5. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

    Reputations:
    4,127
    Messages:
    7,893
    Likes Received:
    5
    Trophy Points:
    0
    You only need:
    Code:
    call iport x2 3
    call waitvid [VID:DID of HD6850] 60
    call pci
    call grub4dos w7
    Doing 'iport dedicated off' will freeze your system. That is because it will disable your HD3470, which is your primary video card. That command was designed for disabling the *secondary* video card in a hybrid graphics system to free up resources or reduce the setup complexity.
     
  6. Shawny warny

    Shawny warny Newbie

    Reputations:
    0
    Messages:
    4
    Likes Received:
    0
    Trophy Points:
    5
    i have a aspire4520G laptop and PE4H+EC2C. Just brought a gtx465 last week and 550w psu. when i plug in the video card throught expresscard adapter, i can find the GTX465 in device manager and everest. but i couldn't choose it as a main display. i tried to update expresscard driver and VGA driver(forceware260.99) but still not working. it's like the display setting is locked only for the use of originally display card(Geforce 8600M GS)
    is anyone there can help me out
    thanks a million


    PS: sometime i can choose gtx465 adpater on "screen resolution" menu. but thing is all the icons,shortcuts and start menu all disappeared. all the cables and wires has been connected properly.
     

    Attached Files:

    • 1.gif
      1.gif
      File size:
      15.8 KB
      Views:
      70
    • 2.gif
      2.gif
      File size:
      47.1 KB
      Views:
      70
    • 3.gif
      3.gif
      File size:
      25.6 KB
      Views:
      71
  7. ualwayslose

    ualwayslose Notebook Enthusiast

    Reputations:
    0
    Messages:
    29
    Likes Received:
    0
    Trophy Points:
    5
    Try Disabling internal video card
     
  8. Mech0z

    Mech0z Notebook Evangelist

    Reputations:
    80
    Messages:
    505
    Likes Received:
    1
    Trophy Points:
    31
    Anyone know if Sandy Bridge have more bandwidth on the Express slot (Like 2.0 for double bandwitdh)

    Also do the current devices we have bought support pcie 2.0 ? (IE we only need to update our laptop)
     
  9. Shawny warny

    Shawny warny Newbie

    Reputations:
    0
    Messages:
    4
    Likes Received:
    0
    Trophy Points:
    5
    thanks for the reply.
    i did try to disable the internal video card but what happened is the 8600M gs is like lose it's driver and display in a low resolution. i still couldn't prioritize GTX465 as a main display device. Wasn't sure if this problem has something to do with system setup or the motherboard is not design for external graphics use. i got the latest Bios into motherboard last nite and did not fix the problem.
    couldn't think of anything else is wrong.
    Anyone here got a clue? i will be much appreciated
     
  10. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

    Reputations:
    4,127
    Messages:
    7,893
    Likes Received:
    5
    Trophy Points:
    0
    The hwtools PE4L/PE4L and interconnects support the pcie 2.0 electromagnetic specification. You can verify by viewing the PE4H-HP4A product used to externalise a desktop pci-e slot. So yes, just need the notebook to support pci-e 2.0 5Gbps link speed.

    Rumour has it the new mobile chipsets released with Sandy Bridge may support pci-e 3.0. Will have to wait and see if Intel rurther delay pci-e 2.0/3.0 on their x1 ports.

    It is not possible to disable the primary video card using Win7 native drivers. Doing so results in, as you note, VGA mode with the secondary card not available.

    I'd suggest mod the desktop or Optimus drivers' INF to contain a 8600M entry, test to confirm it does work, then attach your desktop video card. In that way one driver will be used for both your internal and desktop video card. It can work - there is an confirmed Dell M1330 with a similar 8400M+GTX460 setup on the first page.
     
Loading...

Share This Page