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    Upgrade lenovo y50-70 laptop

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by elinaras, Jul 20, 2014.

  1. elinaras

    elinaras Newbie

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    Hello i have a lenovo with the following specs

    UHD 15.6 screen
    i7 4700HQ proseccor
    GTX 860m 2 GB Gpu
    Ssd 256 Gb

    My questions are if its possible to upgrade 860m with 870 or 880 and if i can upgrade my cpu wth 4900 i7>>
     
    elinaras, Jul 20, 2014
    #1
  2. octiceps

    octiceps Nimrod

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    Negative. Both CPU and GPU are soldered.

    OT: You got the 4K screen? Nice! How is it?
     
    octiceps, Jul 20, 2014
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  3. elinaras

    elinaras Newbie

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    Very nice in movies and stuff like that but its factory locked at 48 hz and it has some minor issues with the scaling but i think with an update will be fine.. So there is no hope for upgrading :(
     
    elinaras, Jul 20, 2014
    #3
  4. octiceps

    octiceps Nimrod

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    Wow. I'm surprised no one has found a way yet to bump it up to at least 60 Hz. That's unacceptable.

    Yep, absolutely zero hope for upgrading CPU or GPU. You want a thin notebook, you gota make concessions somewhere.
     
    octiceps, Jul 20, 2014
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  5. TomJGX

    TomJGX I HATE BGA!

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    Yeah what's up with Lenovo screwing around with displays so much? 1st the full HD display being a joke and now the 4K one being locked at 48Hz...
     
    TomJGX, Jul 21, 2014
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  6. octiceps

    octiceps Nimrod

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    The low refresh rate is a software issue.
     
    octiceps, Jul 21, 2014
    #6
  7. gordan

    gordan Notebook Enthusiast

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    Low refresh is most likely not a software issue. Most likely the problem is the bandwidth of the interface used to connect the display planel. For example a single DP can only drive that resolution at about 48Hz. The only way to go beyond that is to use multiple inputs and that comes with different problems, e.g. the screen will appear as two separate screens, and then you have the problem of stitching the two halves of the screen together. Not a problem on XP, but MS have removed the desktop stretch feature from Windows beginning with Vista and it has not bee re-introduced.

    You get the same problem with other very high resolution monitors. For example, IBM T221 produces 3840x2400@41Hz (early models) or 48Hz (later models) or 55Hz (maximum overclock, attaching heatsinks with thermal epoxy to the FPGAs in the monitor is recommended if you plan to push it that far) by merging either 4xSL-DVI or 2xDL-DVI (cirthix' adapter required and only possible on later models) inputs. The monitor appears to the computer as either 2 or 4 separate monitors and you then have to stitch them together. This can be made to work fine on Linux or XP with most Nvidia and some ATI cards, but don't expecit it to "just work". I have two of these on my desk (typing this post on one of them), so I'm reasonably confident I know what I'm talking about. I expect the upcoming Dell 5K monitor to have a similar configuration and limitations.

    Anyway - 48Hz is plenty for even gaming use, IMO; I game regularly on my T221 in 3840x2400@48Hz mode, and it's just fine - provided your GPU can keep up in that resolution. GPU keeping up, however, is a pretty tall order in some games, I use a 780Ti and I can just about max it out in the games I play. Expecting the same from the 2GB 860M (GM107, similar to GTX750Ti) may be a bit much.
     
    gordan, Nov 24, 2014
    #7