Dell Precision 7540 and 7740 Owner's Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by djdigitalhi, Aug 13, 2019.

  1. Ionising_Radiation

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

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    Very interesting results. Consider using NVflash to dump the VBIOS, and check the power limits you have with the Mobile Pascal TDP Tweaker. The number of cores also don't match.

    Also, please avoid UserBenchmark if you can: consider using 3DMark/Unigine Superposition instead for GPU benches.
     
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  2. Aaron44126

    Aaron44126 Notebook Prophet

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    Dell does update the drivers periodically, just not nearly as often as NVIDIA does. (Maybe 1-2 updates per year from Dell, instead of once every month or six weeks from NVIDIA.) I think that it is fine to stick with Dell's unless there is some specific new feature from NVIDIA that you really need.

    You can also look at using the latest driver from the previous branch. The current branch is 450 and the previous branch is 440. They still update the prior branches with security updates and such. (My 7530 is still on the 440 branch, I like to wait a while before upgrading my work system.)

    You can see all of the available versions by searching here:
    https://www.nvidia.com/Download/Find.aspx?lang=en-us
    The branch is in the version column. (R440, R450, etc.). Note that the R455 releases are tagged as QNF ("Quadro New Feature") and those are essentially beta releases.
     
  3. jack574

    jack574 Notebook Consultant

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    Excellent info, thanks a lot. No specific new features I'm aware of I really need, I was more just thinking things might generally not run as well on the older drivers, but maybe it doesn't work like that....?
     
  4. henhoy

    henhoy Newbie

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    Thanks.

    Does this give more info?

    upload_2020-11-23_21-57-51.png

    upload_2020-11-23_21-58-21.png
     
  5. Aaron44126

    Aaron44126 Notebook Prophet

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    Huh? 896 is the value that they are showing at GPUDB. The boost clock seems high, but that doesn't really matter; since Pascal, the GPU will basically clock up even above the turbo boost limit until it hits the power or thermal limit.
     
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  6. Ionising_Radiation

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

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    NVIDIA's official updated document (the one that changed the RTX 3000 from 2304 to 1920, and also includes the RTX 6000) says 768; maybe this was another of their 'typo's.

    Basically this. The TDP of the T1000 is 40-50W, and the Precisions can handle > 90 W from the GPU, so for all we know, the GPU is simply powering up all the way and drawing that much. But the HWiNFO box doesn't show that much power draw...
     
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  7. Aaron44126

    Aaron44126 Notebook Prophet

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    Looks like it is limited at 50W. (Wonder what it would do with a higher power limit, it looks like there is definitely thermal headroom.)
    I think this might a case where because of the type of system that it is in, this is the very best performance you can expect from the T1000, and UserBenchmark scores also include cases where the T1000 is in slimmer systems with less thermal and power headroom? You are in the top 10%, which is great, but you are not outside of the range of expected scores for this GPU.
     
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  8. supermoth

    supermoth Notebook Consultant

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    Hi
    Just a quick question.
    What are the DELL part numbers or LCD models for a FHD replacement panel?.
    What manufacturers are the best in terms of quality?
    Is it an easy fix to swap only the LCD on the 7740?
    Thanks
     
  9. win32asmguy

    win32asmguy Moderator Moderator

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    DPN# 6HK8X. It is an AUO B173HAN01.3 H/W:08 F/W:1 30-pin LCD.

    There may be compatible panels from Chimei or LG but they will all be the same general specs. I am unsure if the new FHD 60hz 100% DCIP3 500nit panels will work in the 7740.

    If you swap to a 40-pin cable (and all the associated parts) then some better known working options are available for the 7740. There is the stock AUO 4k 60hz panel, and I also currently use a 120hz TN 94% NTSC 5ms panel.
     
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  10. supermoth

    supermoth Notebook Consultant

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    So if I am coming from an HD+ what would be the connector,a 40 pin or a 30 pin one.?
    Thanks a lot for your imput.
     
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