Samsung Galaxy Book discussion thread

Discussion in 'Samsung' started by JoeS, Feb 26, 2017.

  1. Tablet Nostradamus

    Tablet Nostradamus Pen Pal - Newbie

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    Not sure what the power charge limitation is on the GB12, perhaps others with more knowledge can chime in? I do remember around page 208 in this thread people were having issues getting pass through charging to work efficiently with their USB hubs. Have you tried connecting the PD charger directly to the tablet? And which charger is it?
     
  2. sdlnv

    sdlnv Pen Pal - Newbie

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    I did some testing with the original charger and a 60W Anker PD charger and had the following results:
    - Original Charger: I can bring the CPU package to 12W before the battery starts discharging.
    - Anker PD through Hub: CPU at 8W before it starts discharging.
    - Anker PD without Hub: I can bring the CPU to about 14W and I still have 2W to spare before it would start discharging.

    So, I'm using an USB-C port for the external monitor (4k@60Hz for normal use), the other one for all the peripherals and charging. Any suggestions for being able to connect everything and get full charge capacity?
     
  3. Tablet Nostradamus

    Tablet Nostradamus Pen Pal - Newbie

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    I don't think anyone's been able to charge the GB12 efficiently through a hub, unless I'm wrong? The charger needs a dedicated port on the tablet. If you're still losing power with the dedicated port, either your charger is bad or it's specced too low (60W in theory should be way more than enough - my 72W Nekteck (60W through the PD port) works fine, although my GB12 doesn't run a 4K monitor). You can also try a different cable, preferably one that's USB-IF certified and rated at 100W.

    Can you just use the bottom port for power and top port for a hub that connects your peripherals (including monitor)?
     
  4. Tablet Nostradamus

    Tablet Nostradamus Pen Pal - Newbie

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    Stray observations from a non-electrician on charging the GB12 using the Nekteck 60W charger if anyone's interested: Using a Kill A Watt P4400 device between the charger and the wall socket, I'm seeing around 40W (true power) being used until battery reaches 80-90% where it goes down to about 15-20W. This contradicts software apps (like Battery Bar and BatteryInfoView) whose charge rate readings are usually half of what the Kill A Watt is saying. Or am I mistaken in assuming the software charge rate is supposed to match the watt reading?

    So far the battery lasting less than 4 hours is an inconvenience that would be worse if I actually used this while out and about. I do wonder if the battery would be significantly better with a brand new GB12 as opposed to this one that I bought used on eBay, or is this typical wear from a year or two of use? Does anyone's GB12 battery show similar degradation?
     
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  5. thatcomicsguy

    thatcomicsguy Pen Pro - Senior Member Senior Member

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    Ha ha ha! Awesome. It's SO cool that another person here knows what a Kill A Watt device is, let alone uses it in this way.

    Crap battery numbers, though. 4 hours on a new machine is weak. My Notebook 9 Pro got 5+ when it was new, and I gather of the two devices it is the more power hungry. Are there any software apps running in the background? Sometimes that can make a huge difference, like some indexing service blowing through cycles or some program being a WiFi hog?
     
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  6. Tablet Nostradamus

    Tablet Nostradamus Pen Pal - Newbie

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    Ha, I like to keep tabs on how much power my electronics are using. The Kill A Watt is a handy tool that every modern household should have. (End commercial.)

    Hm, I do run Search Everything which indexes the C drive's NTFS volume and network mapped drives (I'm addicted to its near instant search results). Aside from that, I have bluetooth enabled for my keyboard. Nothing that I didn't do differently with my Surface Pros.

    I'm thinking the previous owner probably abused this battery by draining it constantly then recharging. Or maybe the battery was defective from the start.
     
  7. thatcomicsguy

    thatcomicsguy Pen Pro - Senior Member Senior Member

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    When things are suspicious, I run Task Manager and look for unusual CPU activity.

    Though last year I had a virus which was a sneaky little gremlin; whenever I'd move the mouse and wake up my computer, (when I was around to notice), it would shut its activity down and go into hiding, and then wait for five minutes after no activity before starting up again. I only knew something was up because my computer's fans were spinning like crazy when I was away from my desk. I ended up having to find and learn a set of tools which would record activity over time. -Which is a strangely difficult feature to find. You'd think it would be standard issue, but I had to dig up an obscure tool and watch a bunch of videos by this really neat Microsoft engineer whose job it was to hunt for bugs and work out process tree efficiencies.

    I eventually caught and killed the thing and then just to be safe, re-built my entire OS and spent a day changing all my passwords.
     
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  8. JoeS

    JoeS I'm all ears Senior Member

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    Wait, what? It actually was a virus? My laptop does this pretty often, but usually it's something dumb like the photos app or groove. Which tool did you end up using? Because now I'm kind of curious myself!
     
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  9. thatcomicsguy

    thatcomicsguy Pen Pro - Senior Member Senior Member

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    Yeah. I installed something I shouldn't have and the little monster came in along with it.

    I'm away from my desktop, (portable this evening!) so I don't have my tool kit to look through, and I can't remember exactly what I did, but I DO remember that this website was one of the first stops on my search...

    https://www.instantfundas.com/2012/03/how-to-record-cpu-and-memory-usage-over.html
     
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  10. JoeS

    JoeS I'm all ears Senior Member

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    Oh nice, I knew about perfmon, but I didn't know it could keep a running log file.
     
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