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Ivar Af Øring

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Posts posted by Ivar Af Øring

  1. hi Tech Inferno Fan

    how can i get DIYeGPU-Setup-110b5 i'm in egypt??

    I don't mean to be disrespectful in any way, but have you even tried investigating and reading how to implement an eGPU?

    Start at page 1, Nando made a superve summation of how to start.

    begin with finding your specification regarding motherboard and so on.

  2. I'm sure it doesn't have an expresscard slot... Only the usual mPCIe where the WiFi card is tucked. And I have no idea what chipset it's got or how to find out. You'll have to excuse my dilletantism, but aside from takin the laptop apart and putting it back together from memory, I don't have any real hardware experience. Also, right now (recently became a father) the 5738G is all I have available to make something out of, and of course, if I had the money necessary to get another rig, I'd definitely go desktop. For their portability, laptops have proven to have a much shorter expiry date.

    I was thinking of using my ACER 5738ZG for a eGPU setup. After some research (including disassemble the laptop) I found that I only had access to mPcie slot 2 and 3 (verified by moving my wifi-card). This indicates that 2x-link would not work since you'll need available mPCIE slots in pairs of either 1+2 or 3+4 etc. Also, I found that there is a HD4500 (iGPU) located on the motherboard but since it's physically disabled by intel and can't be activated, this kills the option for any 1.x-opt implementation.

    To conclude: No possibility for 2x-link nor 1.x-opt. For performance you should really look into what Nando suggested regarding swapping to a low cost sandy-bridge system.

    NANDO: correct me if I'm wrong about the 2x-link.

  3. Appears the DC output terminals have only the one voltage level out. So there is no 12V and 5V rail. The S-201W product has a 5V listing against it, but it too looks to only have the one rail out. It's likely you adjust the Vadjust screw to set it to 5V, 12V or 24V output only.

    Aliexpress.com : Buy retail,wholesale(it is best send goods by ship ) LED power supply S 201W(2 years quality warranty) from Reliable power supply suppliers on ITC STORE---retail,wholesale,purchasing agent

    I'm sorry Nando, I posted the wrong link before!

    This is what I wanted to show you. If you look at the third picture you can see 3x outputs, that could be it?

  4. You are pioneering this work. I have as yet not loaded Win8 on my box to try it but if I can get a loaner Dell E4300, the test box I did the original DSDT override on, then I'll see if I can get a Large Memory Area defined in Win8. The different behavior of Win8 indicates the pci-e driver has been altered.

    We've had a previous Toshiba R840 NVidia Optimus implementation here also with a PE4H. Having a PE4H 2.4 rather than a PE4L 2.1b means you'll require Setup 1.1x to downgrade the link to pci-e 1.x or else it will not work. That's because a PE4H 2.4 cannot transmit at the pci-e 2.x speed, the default your expresscard slot is set to.

    My suggestion is rather than obtaining the Setup 1.1x software, offload the PE4H for a PE4L 2.1b so you get double the bandwidth (pcie 2.0 vs pci-e 1.x) and don't need donate for Setup 1.1x.

    A MSI GTX660Ti requires 164W of peak power as shown. An incredibly efficient card. That means a 12V/14A rail would be OK, though I'd go for 16A for a safety margin. The PSU you link is 12V/29A, so has plenty however, it doesn't have a 5V output. A PE4L 2.1b can then only use 3.3V/1.3A (4.3W) from the expresscard slot to drive your cards which might or might not be OK. Reason is a pci-e card is rated at up to 3.3V/3A (10W). You may need to run a single or double-ended USB cable from the notebook to the PE4L to supply an extra 5V/0.5A (2.5W - single or 5W - double), downregulated to 3.3V by the PE4L just to give slightly more power.

    If this sounds overly complicated then may I suggest acquiring a 203W XBOX360 PSU. It's got a 12V/16.5A rail + 5V/1A rail. There's an example of how to wire it here and here.

    Ok I see, the reason I looked at this power brick was due to its dimensions. I want something that is shaped as a graphics card in order to make something slick. So maybe I can find something similar that have a 5v rail as well.

    I'm amazed of the low consumption by the 660/660ti!

    If I find something suitable I post it here for opinions, thanks a lot for keeping this AWESOME thread alive =)

    What about this power brick?

    • Thumbs Up 1
  5. Unfortunately your system is x1 1.0 capable only, so there is nothing more that can be done to extract better performance. Consider:

    * PM55 is pci-e 2.0 compliant but only for power management. The link speed is still pci-e 1.0. You need a Series-6 chipsets or newer for pci-e 2.0.

    * Last time I checked, the port listing of a DV7 wasn't capable to support x2. There would need [port1+2], [port3+4], [port5+6] or [port7+8] accessible as expresscard+mPCIe or mPCIe+mPCIe). To answer your question, x3 isn't possible.

    * Putting an Arrandale CPU like a i5-580M into your system won't enable the iGPU to be the primary bootup video device. Sure, you can enable it using Setup 1.1x but the NVidia driver will only engage pci-e compression if the iGPU is the primary bootup video device. So no x1.Opt would be possible.

    My suggestion is to offload the system for an inexpensive Sandy Bridge system like a 17" Dell Vostro 3750. Then you'll be able to enjoy x1.2Opt performance, approx 4 times more bandwidth than the best your DV7 can do (x1 1.0).

    Hi Nando.

    How about starting a new thread dedicated for eGPU?

    I'm still very motivated to discuss this subject and try to help others.

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