Precision 7530 & Precision 7730 owner's thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by Aaron44126, Jun 27, 2018.

  1. Ionising_Radiation

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

    Reputations:
    617
    Messages:
    2,502
    Likes Received:
    2,175
    Trophy Points:
    181
    So, I'd like to report that I've gotten in direct contact with my regional Dell Expert Centre, and they've requested that I send in my notebook for analysis at the engineers' lab (I'll be receiving a replacement notebook from them, which I can keep).

    They've asked me to keep things as-is, so I'll prepare a system image of C:, remove only my own WD Black drives and the ECC RAM (and replace the original 8 GB), check that I can reproduce Lightroom's strange behaviour after these changes, and then send it in when I've gotten my replacement system.

    Let's hope that their lab can reproduce this, too, and thence a BIOS update addressing all these problems.

    @Div033, are you able to see the same behaviour?
     
    Div033 likes this.
  2. alittleteapot

    alittleteapot Notebook Guru

    Reputations:
    12
    Messages:
    55
    Likes Received:
    26
    Trophy Points:
    26
    Good Morning Ionising,

    I tried a second time, and signed up for an Adobe trial specifically to install Adobe Lightroom CC and try this out. I never saw a load less than 19W, usually a little bit more. However, I do have SQL Server and who-knows-what else running even with the VMs off, so I'm not too surprised. I turned down the 17" 4K screen to very low brightness, so that's a minimum of 5W additional to the low-water mark of 14W. What was very interesting to me is that when I disabled the P4200 GPU in the control panel, power utilization shot up to about 30W and pretty much stayed there. The GPU didn't return results to HWInfo anymore, but that is a very curious anomaly. I am not routing the video through the GPU.

    Good luck!
     
    Ionising_Radiation likes this.
  3. Div033

    Div033 Notebook Consultant

    Reputations:
    19
    Messages:
    245
    Likes Received:
    71
    Trophy Points:
    41
    Yes and no. Minimizing Lightroom was correctly setting the GPU to inactive as discussed (when power settings were set to optmal power) but I observed identical power draw under normal circumstances where Lightroom wasn't open. Simply put, I saw no power draw change between normal, "supposed" GPU idle and minimized lightroom. In both cases the system reported the GPU consuming 0W and in both cases my system drew 9-12W, which is low enough to rule out the GPU actually being in use. With these numbers, I'm able to get 6.5-7h of battery life, which is just okay.
     
    Ionising_Radiation likes this.
  4. Cugu

    Cugu Notebook Enthusiast

    Reputations:
    0
    Messages:
    14
    Likes Received:
    5
    Trophy Points:
    6
    I also made efficiency tests and i have noticed strange behaviors. If I use a better performance mode i get about 28 - 34W power draw. Better battery gives 24 - 28W and best battery about 14- 20W. And what is the best - Best performance gives 9 -14W ??? And in this mode i get about very pleasant 7 - 8 hours on battery - all measurements with half dim. On the AC power results are nearly the same. P4200 is still dormant but it has started to be after yesterday drivers upgrade directly from nvidia site. During office works and browsing machine is totally quiet and I may also keeps it comfortably on my laps. For me very strange but now this machine are working as it should from the beginning. In one i am still disappointed - sound problems. I thought that they disappear but they are present but not so frequent. Dell please fix it finally because listen to music is very annoying with this.
     
    Ionising_Radiation likes this.
  5. frostbytes

    frostbytes Notebook Consultant

    Reputations:
    2
    Messages:
    195
    Likes Received:
    15
    Trophy Points:
    31
    Question about DisplayPort monitors and my 7730 and TB18DC. Right now my display setup is:

    1) 7730 at 3840 x 2160
    2) Dell U3014 connected to TB18DC via mDP at 2560 x 1600
    3) Dell U2713HM daisy-chained to the U3014 via DP at 1440 x 2560

    I picked up a Dell U3419W USB-C monitor that I want to add to the setup using USB-C to the TB18DC but it appears that I can either have the existing monitors connected or the new monitor, but not all of them.

    Am I running to a DP bandwidth limits or can I make this work?
     
  6. Aaron44126

    Aaron44126 Notebook Virtuoso

    Reputations:
    699
    Messages:
    3,645
    Likes Received:
    970
    Trophy Points:
    181
    I believe that the TB18DC dock will not run with more than two monitors attached unless they are all 1080p or less.
    Have you tried connecting the new monitor directly to the system? (It looks like is also supports DisplayPort input.)
    Do you have a dGPU in your system? There also seems to be system limit of three monitors (including the built-in panel) if you only have the Intel GPU.
     
  7. frostbytes

    frostbytes Notebook Consultant

    Reputations:
    2
    Messages:
    195
    Likes Received:
    15
    Trophy Points:
    31
    I have two monitors running through the dock at above-1080p now. From the little reading I did, the limit is the summation of the resolutions.

    I don't have another mDP-to-DP cable handy, so I can't try using DP connected directly to my system. But I did just try HDMI. It worked at first when connected directly to the 7730 but not via the dock and as I tried different ports now I can't get it to work again. Odd.

    This system has an Intel UHD Graphics 630 and Radeon Pro WX 4150.
     
  8. Lumute

    Lumute Notebook Enthusiast

    Reputations:
    0
    Messages:
    12
    Likes Received:
    4
    Trophy Points:
    6
    This is from the TB18DC User's Guide:

    upload_2019-7-15_12-34-24.png
     
    frostbytes likes this.
  9. frostbytes

    frostbytes Notebook Consultant

    Reputations:
    2
    Messages:
    195
    Likes Received:
    15
    Trophy Points:
    31
    Thanks for that. I don't have the manual anymore, so I don't remember seeing that.
     
  10. XeonPlanner

    XeonPlanner Notebook Enthusiast

    Reputations:
    0
    Messages:
    43
    Likes Received:
    24
    Trophy Points:
    16
    Is Precision 7530 compatible with usb type-c charger? Most of my current workload includes reading papers and running python programs, and system power rarely goes over 65 watts. I am considering getting a 65w charger, as the current charger is quite heavy.
    I tried a 65w lenovo charger, but it didn't work. I wonder if there is a compatibility issue between brands.
     
Loading...

Share This Page