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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)

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    No, definitely not a new motherboard.

    As for whether or not Dell will accept your claim, best to ask and see. Upgrading/replacing the RAM requires the keyboard to be removed, and those are CRUs (customer-replaceable units), so it's fairly likely that they'll give you a long rope.
     
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  2. Ionising_Radiation

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

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    Hmm. Unscrew all the screws, and take the board off from the front corner, by gently lifting and sliding from one edge to another.

    I was generally fairly rough and I've never broken the snap joints...
     
  3. frostbytes

    frostbytes Notebook Evangelist

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    Do any of you use a USB-C external battery with the 7730? When I had an XPS 15, I bought Dell's Power Bank for it for situations when I needed more juice but outlets weren't around.

    Is there something equivalent -- and hopefully more universal -- that would work with the 7730?
     
  4. Aaron44126

    Aaron44126 Notebook Prophet

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    The Dell Power Bank also works with the 7730 (IIRC it comes with "small" and "large" power plug ends so that you can plug it into basically any Dell laptop). Note that the highest capacity that they offer is 63 Wh, which is less capacity than the internal battery (if you got the large one), and also the system will be pretty heavily throttled while you are using it because it can't put out anywhere near the 240W that the 7730 wants.

    The Precision 7000 machines aren't on the "supported products" list but there was some chatter about it earlier in this thread... A Dell rep came back to a user and said that it would work, just not optimally because of the 7000 series's high power requirements. This would also be the case with any USB-C power bank that you could find --- the USB-C spec puts the maximum power transfer at 100W, I believe, and if you had a power bank that could actually discharge at that level then it run out pretty quickly.
     
  5. frostbytes

    frostbytes Notebook Evangelist

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    Oh, interesting. I did check Dell's website when I first bought my 7730 and did not see it listed as supported.

    I did get the large battery. I'll have to find the large power plug end.

    I'm ignorant about this topic. I was hoping that when an external battery is plugged in, the machine continues running off the internal battery (not throttled), while the external battery charges the internal battery. Is that not the case?
     
  6. yaroslavnguyen

    yaroslavnguyen Newbie

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  7. Aaron44126

    Aaron44126 Notebook Prophet

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    The machine can only draw 100W from the internal battery. The only way to run it fully unthrottled is to connect it to a real PSU.
    The system will always prefer external power. It can't tell the difference between the Power Companion and a regular old 70W power adapter attached to the wall. (Because of this, it may drain the battery faster than the internal, as the OS doesn't realize that it is on battery power and kick power-saving measures into play.) The system may use the internal power as a supplemental power source if you are working under heavy load, but the Precisions throttle pretty hard when a low-powered power adapter is attached. You'll probably get a little bit of charging done, but you won't get anywhere close to max if the system has a 97 Wh battery and the external is a 63 Wh battery, and it will be using a good chunk of its power just running the system.
     
  8. Martin Ro

    Martin Ro Notebook Enthusiast

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    This is a usual thing and panel based. You can find some more about this "issue" in this thread on various positions.
    You can't change anything except exchanging the display panel...
     
  9. Aaron44126

    Aaron44126 Notebook Prophet

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    As @Martin Ro stated, this is determined by the panel. Currently, Dell is only selling the 4K panel with 8-bit color depth; 1080p gets 6-bit.
     
  10. frostbytes

    frostbytes Notebook Evangelist

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    Thanks for the explanation. Is there any chance of using the under-powered external battery harming the system?
     
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