GT 72s Upgrade Panel

Discussion in 'MSI' started by Danishblunt, Apr 27, 2018.

  1. hacktrix2006

    hacktrix2006 Notebook Evangelist

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    @senso i have PM'd you so we can keep this thread on topic yet again i have managed to derail the thread LOOL
     
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  2. hacktrix2006

    hacktrix2006 Notebook Evangelist

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    @t456 Would the suggestion from senso about the QHD screen i am after which is 1440p @ 120hz 17.3" work well after getting the 40 -> 40 pin EDP connector?

    I would be upgrading from a LG Philips LP173WF4-SPF1 (G-Sync system, but as i am running a different MXM card and upgrading to a GTX 1070 its not a worry for me).
     
  3. t456

    t456 1977-09-05, 12:56:00 UTC Moderator

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    The SPF1 is a 2-lane/30-pin, so the 4-lane/40-pin cable would be required. You might sell the old cable and lcd once everything's running as expected.
     
  4. hacktrix2006

    hacktrix2006 Notebook Evangelist

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    Thanks @t456 for your reply i knew about the 40 to 40 pin EDP cable being required just was wondering if the screen itself would work fine. Thinking of doing the screen first then the GPU and Heatsink second. As for selling the old cable and screen it depends as i still have my old GTX 560m MXM (Heatsink as well), GTX 970m MXM gpu's. I tend to hold my old part(s) after upgrading the system as when i go to sell them on if i get someone that low blows me i will normally just return the system to stock with out any mods.

    Only getting a new screen for two reasons firstly because 1440p insure CPU bottle-necking like seen at 1080p is not an issue, secondly i am going for a GTX 1070 MXM upgrade and using a GTX 1070 or even a GTX 1080 on 1080p is overkill.
     
  5. senso

    senso Notebook Evangelist

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    My cable is still somewhere on its way, and my lcd is at customs, yay...

    Hope they dont mess my new display, but one thing is sure, it will take over one month to get it out of customs..

    :(
     
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  6. hacktrix2006

    hacktrix2006 Notebook Evangelist

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    @senso i hope so too, Customs is known for being totally spanish (mañana, mañana), lol
     
  7. senso

    senso Notebook Evangelist

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    @hacktrix2006 , @t456 , @Danishblunt , @Paparatsio

    Display and cable have arrived, yesterday was swap day.

    Given how the eDP cable is routed in the GT72, a full teardown is the only safe way to swap the cable, so that was what I did, take it all apart, swap the eDP cable, swap the display, put it all back together, fix a couple broken nuts in my lcd cover with a bit of epoxy(one side had already failed, previous owner broke it).

    It works right of the bat, Windows detected and changed the refresh rate to 120Hz automagicaly.

    Played a couple games, had to change my sensivity a bit, it feels smoother, and it sure is a lot brighter than my previous one.

    The bad part: lost brightness control, might ask Svet if there is anything that can be done, poked around BIOS, in my old Asus that I unlocked all the menus I could change the polarity of the backlight polarity signal, but I dont think this is a polarity difference, either its on another pin that my laptop isn't controlling, or different frequency.

    The display has a tiny scratch(the size of a pixel) that shows up on full black images.

    The matte coating seems fuzzy, can't really explain, and its a TN, used to have IPS everywhere, having the TN fading again is strange.

    All in all, not sure if this was the best idea, total cost with customs ends up in the 100-105€ ballpark, I got the cheapest N173HHE-G32 (rev. C) that was available on Aliexpress, I didn't expect a perfect ready to use by ODM's displays, and my previous display also had a couple nicks/scratches.

    It also runs hot(in the 30-35ºC range on the bottom where the pcb with the led driver sits), but I don't remember if the previous display would heat in that area.

    Conclusion, not sure if worth it or if I should have put the 100€ into the 1070 fund, with one being sold in this forum for 400€ in Europe, I'm a bit thorn apart.

    ¯\_(ツ)_/¯
     
  8. Danishblunt

    Danishblunt Notebook Prophet

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    Your mistake was buying from aliexpress. THe quality of panels from aliexpress is pathethic. I've tried them twice and got twice garbage screens, went back to ebay and got a happy purchase.
    I'm wondering about the brightness control tho @t456 any input on how to fix this? :)
     
  9. senso

    senso Notebook Evangelist

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    I have also bought panels on ebay, it was also hit and miss, even buying panels from the US.

    On my last job we bought panels directly from AUO, Innolux, LG, and others, there I got some real ODM grade display at resale price, oh the perks that I miss..

    I might get a 1440p next time, and will try to get it from a reputable distributor.
     
  10. hacktrix2006

    hacktrix2006 Notebook Evangelist

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    Nice one @senso , as for brightness control have you tried to see if it works on the iGPU? if it works on that then its just a driver issue which should be an easy fix after a DDU run and reinstall. As for the heat bit, is it right near the MSI branding on the screen? If so then that does get hot as mines gets really hot on the stock panel pushed past 75hz.
     
  11. senso

    senso Notebook Evangelist

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    Yup, right at the MSI branding, thanks for the info.

    I have never used the iGPU in this laptop, but I can try it out with the iGPU(will have to install the drivers, so it will be a clean install of them) when I get back home I will test that and report back.

    If you want to upgrade, just do yourself a favour, and maybe try to get a display from HID or some other reputable seller.
     
  12. hacktrix2006

    hacktrix2006 Notebook Evangelist

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    @senso any luck with the Brightness issue (could be EDID related maybe)
     
  13. senso

    senso Notebook Evangelist

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    New display is on its way, should be a real ChiMei this time..

    Then I will report back.
     
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  14. hacktrix2006

    hacktrix2006 Notebook Evangelist

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    Sweet and good luck bud. Still saving up for mine. How easy was your tear down i.e the covering plastics on the back that fans screw to and heat pipes slot into.

    Sent from my LLD-L31 using Tapatalk
     
  15. Danishblunt

    Danishblunt Notebook Prophet

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    It was a counterfeit??
     
  16. senso

    senso Notebook Evangelist

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    I dont know what this thing is, but its not a Chi Mei panel, and its not an 100% sRGB for sure lol.

    Red is orange, orange is meh, yellow on this forum is almost un-readable, blue is miserable, and the greens might have been left on China lol.

    I had it coming, buying lcd's from Aliexpress..

    That and the pcb with the lcd driver/backlight and where the connector plugs-in is plastic with alu foil, all n173hhe-g32 images that I see, have black foil in that place, so, yeah, you can call it fake :/

    That and I'm still not sure if its even a 120Hz display lol, I cant tell any difference from my previous display.
     
  17. senso

    senso Notebook Evangelist

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    The new panel arrived today.

    Swapped, and, YAY :D

    MUCH better overall, this is the real deal, better colours, brighter, backlight is adjustable, and its so crisp, the other one was blurry.

    And brightness controls work right away without re-installing any driver.

    @Danishblunt, @hacktrix2006

    @XMG Thank you for recommending that seller, shipped with courier at no extra cost, massive box with 50x50x50cm, lcd was wrapped in 10 meters of bubble wrap!
     
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