Must both banks of memory have the same amount of memory on my Aspire 15?

I want to put a 16BG memory chip into the vacant(?) bank of my Aspire 15 that comes with 4GB.  Will that work?
John ShackelfordAsked:
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JohnBusiness Consultant (Owner)Commented:
Your laptop supports UP TO 16 GB of memory

So you need to take out the 4 GB module and replace it with the 16 GB module.

Not both at the same time.
Tom CieslikIT EngineerCommented:
To answer this question you must provide full computer name and model number.
All computers has different chip version and this version with processor type and version determinate what memory configuration is available.

Please provide this information and I'll be more happy to help you with your issue
JohnBusiness Consultant (Owner)Commented:
I posted the link for that computer and the maximum memory is 16 GB
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Tom CieslikIT EngineerCommented:
John, how do you know what kind of model is it ?
I have 4 Aspire laptops in my home and 10 more in my company and I can set 3 different memory configurations on it, based on model and processor installed.
JohnBusiness Consultant (Owner)Commented:
The link was for an Aspire 15 as posted in the original message above. I think the link is close enough and most computers max out at 16 GB anyway.
John ShackelfordAuthor Commented:
Aspire 15 E5-575-33BM
Tom CieslikIT EngineerCommented:
For Example Asus Aspire E15
You can buy in 4GB and 8GB memory configuration

For laptop with 4GB you can install 4GB or 8GB additional chip with same parameters so maximum you can get is 12GB

ES1 for example has 8 GB memory and you can install additional 8GB so maximum is 16GB
JohnBusiness Consultant (Owner)Commented:
The maximum is 16 GB so you only need the one module.
Tom CieslikIT EngineerCommented:
So Like I said before,,,, all depends of configuration, chip + processor

Your laptop can handle maximum 32GB memory

sorry John.
John ShackelfordAuthor Commented:
Not a problem, Tom.  Thanks for the follow-through!
Tom CieslikIT EngineerCommented:
It looks like you have 2 available slots.
You can install 8 or 16 GB 260-pin SO-DIMM 2133 MHz PC4-17000 to be compatible with your internal memory

I came across with some article where someone pretending that was possible to install 16 GB 260 PIN SO-DIMM 2600

Just read this article

But I think if you want to add 16 GB of ram, if you'll keep with same specification it's possible and You'll get 20GB of ram together.
John ShackelfordAuthor Commented:
So if I can put 8GB in the other bank, it sounds like I can put 16GB as well, bringing the total memory to 20GB.
JohnBusiness Consultant (Owner)Commented:
8 and 16 should work . The 4 may not pair well.
John ShackelfordAuthor Commented:
Sorry, our comments crossed in transit.
John ShackelfordAuthor Commented:
It seem my lack of attention to this has caused the other contributions to be lost.  The holidays have taken their toll.
I went to the suggested link to the lengthy analysis and research into the 575-33BM, but I can't for the life of me arrive at a conclusion.
Tom CieslikIT EngineerCommented:
I think I did explained you clearly. Maximum memory you can have in this computer is 32GB

You have 4GB installed now
You can put another 4GB or 8GB or 16GB
16GB is a maximum you can use.
You must use 260-pin SO-DIMM 2133 MHz PC4-17000 to compatible with 4GB internal memory

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John ShackelfordAuthor Commented:
My thanks to all.
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