Laptop adapter interchangable w/other brand Netbook?

Discussion in 'Accessories' started by Judy Smith, May 15, 2019.

  1. Judy Smith

    Judy Smith Notebook Consultant

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    Hi, anyone know whether an adapter of:
    14" Lenovo thinkpad can safely be connected to:
    11" HP Mini which has neither an adapter nor battery?
     
  2. Charles P. Jefferies

    Charles P. Jefferies TG Lead Moderator Super Moderator

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    I'd recommend against it. Most notebook power adapters are proprietary; even if the connector does fit, it might not be supplying the right kind of power, and could damage the notebook.

    Charles
     
  3. Judy Smith

    Judy Smith Notebook Consultant

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    I see, thanks. Are non-OEM adapters via Ebay safe? I see various options & some say theirs are like OEM. Ranging between $7 & $10.
    ...For example, i've been buying non-OEM printer toners off Ebay, and what can i say, so far so good. I'm not saying OEM might not be superior in how long they last, but hey, they're printing.

    Perhaps you know the answer to this as well - I wonder if there's a source which sells both HP-mini adapters as well as RAM, since the mini (311-1037NR) has Win10 and only 2gb RAM, so i suppose i'd need to look for a 3gb RAM? or rather 1gb to add to the 2gb?
     
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  4. Mr. Fox

    Mr. Fox Undefiled BGA-Hating Elitist

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    I have purchased numerous aftermarket laptop chargers and batteries with no adverse results. Look at the label on the charger (or the battery) and be sure the replacement part you are purchasing has matching output specs for voltage. You can go higher on the wattage capacity, but you want the same output voltage. What I mean by capacity is you can use a 330W AC adapter on a system that normally uses a 240W AC adapter with no issues, but not the other way around. Or, you can use a higher capacity battery to extend the amount of time your laptop can run on the battery. However, your system uses a certain input voltage and you don't want to use a part that outputs more or less voltage than what your system requires as that can mess things up. You can see these specs by looking on the label in most cases. See the example in the image below.
    20190522_140409.jpg
    Not sure exactly what you are asking here about the RAM. For the best performance and stability, you generally want to have matching modules rather than mixed. If you end up with an odd number, that is a dead giveaway that the memory modules are mismatched. If you have 2GB installed and an empty slot available, you should buy an exact match (look on the label of the RAM stick for the brand, part number, etc.) and end up with 4GB, not 3GB. If you do not see a label on the stick of RAM you have, remove it from the slot to have a closer look, as the label may be on the side facing the motherboard.
     
    Last edited: May 22, 2019
  5. Judy Smith

    Judy Smith Notebook Consultant

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    Mr. Fox, thanks for the feedback! I checked the underpart, but because it's in very tiny grey-on-black print, i can barely make out what it says. It's nowhere near the clarity of the demo pic you posted.
    It seems to state:
    INPUT: 18.5v 3.5a
    I also can't find Wattage anywhere on the netbook.
    The 18.5 specs is in the area where the battery is normally seated.

    I'm not even sure if the original adapter came with 2 or 3 prongs! At least one seller states it makes no difference insofar as quality, but isn't it better to get an adapter with the same amount of prongs the original came with?

    As for checking if there's an empty slot, i see 2 philips screws, but nervous about unscrewing them, for fear of what might come loose & then not reinstatable. Or is there nothing to worry about?

    Do you know where to check below for volt/watt specs, and also how the ram-slots are configured?
    https://support.hp.com/us-en/product/HP-Mini-311-PC-series/4011350/model/4051837/
     
    Last edited: May 24, 2019
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  6. Mr. Fox

    Mr. Fox Undefiled BGA-Hating Elitist

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    The label I was referring to should be on the AC adapter itself. But, the input specs you found on the chassis label should match the label on the AC adapter. The wattage would be on the AC adapter. You would determine the AC adapter minimum wattage by multiplying the voltage times the amps (65W in this case). The aftermarket replacement AC adapter connector should be made the same as the original part. I am not sure about the prongs, but I would be cautious about using something that was designed differently with respect to the connector.

    I am not familiar with the product you own, but I found this video on YouTube showing how to completely disassemble it (assuming it is the same product). The video is not in English. If this is what yours looks like, it has RAM soldered to the motherboard on the keyboard side and one slot available under the bottom cover. If it is single-channel memory, the RAM soldered to the motherboard does not necessarily need to match the RAM you add to the available slot.



    Here is a short video in English that shows how to access the RAM slot.


    If your system is the newer design, this video shows how to disassemble it.
     
    Last edited: May 24, 2019
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  7. Judy Smith

    Judy Smith Notebook Consultant

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    OK, thanks, please bear with me, because upon starting the first video, i unscrewed & took pics. It will now take some time to process the pics, and i guess afterward you can advise which data it's safe not to edit out.
    ...update: are these pics OK to use or should i delete them?
    ...and based on these pics, can you tell if this thing was abused, and/or other feedback regarding my above questions?

    As for all the rest of the 1st video & next ones, I think i'd be hesitant to disassemble that much, given my inexperience.

    I mean does that 3rd video mean that you need to disassemble the upper keyboard to add more RAM? I can't figure it out...
     

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    Last edited: May 24, 2019
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  8. Mr. Fox

    Mr. Fox Undefiled BGA-Hating Elitist

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    Hi. I cannot really determine from those pictures if it was abused. I do not think there is much point in disassembling because it looks like the only RAM slot is under the cover you removed. And, that RAM slot is already filled with a stick. The videos I added only for your general information benefit to see how to take the machine apart.

    If your machine is the same as the those depicted in the first and second videos the RAM on the keyboard side is soldered to the motherboard and cannot be replaced. So, to increase the RAM, you would have to replace the one stick of DDR3 you already have with a stick of larger capacity.
     
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  9. Judy Smith

    Judy Smith Notebook Consultant

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    I'm not sure where on my above-pictured panel you're referring to (regarding the DDR stick), or even if its worth it, since it seems quite abused to me even internally.

    Also 2gb RAM seems very cramped for Win10, and might get paralyzed as happened to many, so i wish i knew what my best option for now is.

    Should i just look for an 18.5v adapter off Ebay & not worry about watts? And then test it with HDtune, if possible, as the next step, prior to deciding whether to increase RAM?
     
  10. Judy Smith

    Judy Smith Notebook Consultant

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    Oh well, here's an update. I took the plunge, and am awaiting the adapter, after which i'll see if it even powers up. I've never to date used anything as small as a netbook!

    Off-topic I'd appreciate if anyone can remind me which HDtune tabs are most necessary to check :vboops:
     
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