Precision 7550 & 7750 Owners' Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by SlurpJug, May 30, 2020.

  1. Ionising_Radiation

    Ionising_Radiation ?v = ve*ln(m0/m1)

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    @SlurpJug, do you mind dumping your VBIOS and uploading it here, if at all possible, ideally using nvflash? Thanks!
     
  2. SlurpJug

    SlurpJug Notebook Consultant

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  3. Ionising_Radiation

    Ionising_Radiation ?v = ve*ln(m0/m1)

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    @SlurpJug, thanks so much. I get a feeling the GPU-Z dump vs the nvflash dump differ, because the ROM from nvflash is ever so slightly larger than that out of GPU-Z. Might have been the cause of my RTX 5000 VBIOS mod not working.
     
  4. SlurpJug

    SlurpJug Notebook Consultant

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    I calibrated my display.

    Here is the DisplayCAL profile for the UHD 500 nit display for the 7550. Please verify that your panel is AUO41EB by going into Device Manager > Monitors > Generic PnP Monitor > Details > Hardware Ids.

    You will need to install DisplayCAL and load this profile. You will also need PremierColor installed and to set it to sRGB (Internet) mode.

    Calibrated using a X-Rite ColorMunki Display to 6500K with a sRGB tone curve. Intended to be used with PremierColor sRGB emulation mode. Do not use with integrated graphics as this will cause black level artifacting due to a bug with Intel HD graphics drivers that has existed for more than 4 years.
     

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    Last edited: Jun 20, 2020
  5. SlurpJug

    SlurpJug Notebook Consultant

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    Perhaps that is the reason. I haven't used NVFlash before so I have no clue how to extract the vBIOS this way. If you can provide instructions I can get it for you.
     
  6. Ionising_Radiation

    Ionising_Radiation ?v = ve*ln(m0/m1)

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    You can get nvflash here. From the command prompt/PowerShell, run the following command:
    Code:
    nvflash64 --save filename.rom
    and replace "filename" with something appropriate.
     
  7. Aaron44126

    Aaron44126 Notebook Prophet

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    Ok, yes I think that is true. I was thinking more of RTX 4000 and 5000 which are 80W on the 7550 and 110W on the 7750.

    Dell's rule is basically, if you don't break anything, you can do whatever hardware swaps or modifications that you want. If the tech thinks that there is a chance that your changes are what is causing your issue, they can require you to put things back to the stock configuration before performing warranty service. (I've never had them actually do this to me.)

    This doesn't really apply to thermal paste since it's really hard to mess up (unless you use something conductive), you should be good to just do whatever there. In fact... I would probably insist on repasting myself rather than let a tech do it, if I was having warranty service that involved removing the heatsink. The guy we have isn't very careful; he doesn't clean off the old paste and just globs a lot of new (whatever generic stuff Dell uses) on.
     
    Last edited: Jun 20, 2020
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  8. Aaron44126

    Aaron44126 Notebook Prophet

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    Is that your actual GPU card? Did you repaste it yet? (Or is that the one from the 7540?)
    I'm curious if you see graphite pads once you take the heatsink out, and if so, if the temperatures you get using real paste is much better or not.
     
    Last edited: Jun 20, 2020
  9. Kyle

    Kyle JVC SZ2000 Dual-Driver Headphones

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    I'll just ask here since the HP forum isn't that active: For the HP ZBook 17 G6 (= Dell 7740 equivalent), it seems two of the RAM slots are not customer accessible and upgradeable. Does this mean it is impossible to access those slots? And if the laptop is shipped with two modules, do they come in customer accessible or inaccessible slots?

    And what is HP's policy regarding thermal repasting?
     
  10. alittleteapot

    alittleteapot Notebook Guru

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    I am no HP expert, but browsing the manual, it clearly states that 1) Up to 92 differently-sized screws are involved; 2) non-customer upgradable RAM comes with a kit and new thermal pads that are replaced along with the RAM, and 3) it could void the warranty by doing so. I hope you have the pro-support equivalent for that thing, because it sounds like a challenge. To bring it back to the forum topic, though, this sounds like one area where Dell is doing significantly better than HP. When I see some of the HP 17 G6 NVME solid state drives listed as being non-customer serviceable, this strikes me as remarkably bad for the money. There's still a bit of screw tracking when you break down a Precision, but not too bad.
     
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